Tokushima University / Educator and Researcher Directory --- Fukutomi, Junichiro

Personal Web Page

https://researchmap.jp/read0017386 (researchmap)

Field of Study

○	Fluid Mechanics, Fluid Machinery

Subject of Study

○	ターボ機械の高性能化に関する研究, 自然エネルギー利用のためのターボ機械の開発, ターボ機械流路内の流れ解析 (turbomachinery, fluid machinery, 自然エネルギー, 流れ解析)

Book / Paper

Book:

1.	Junichiro Fukutomi and 他 : 機械工学便覧流体機械, Japan Society of Mechanical Engineers, Tokyo, Aug. 2007.

Academic Paper (Judged Full Paper):

1.	Toru Shigemitsu, Junichiro Fukutomi, Matsubara Takumi and Sakaguchi Masahiro : Unsteady Flow Condition of Centrifugal Pump for Low Viscous Fluid Food, International Journal of Fluid Machinery and Systems, Vol.10, No.4, 432-438, 2017. (Link to Publication Site) ● Publication site (DOI): 10.5293/IJFMS.2017.10.4.432 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85039756527 (DOI: 10.5293/IJFMS.2017.10.4.432, Elsevier: Scopus)
2.	Toru Shigemitsu, 竹島康東司, 小川雄也, 楠丁 and Junichiro Fukutomi : 二重反転形小型ハイドロタービンの翼近傍における圧力変動, Turbomachinery, Vol.44, No.7, 429-437, 2016. (Keyword) Small Hydro Turbine / Contra-Rotating Rotors / Internal flow (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.44.7_429 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282763025161344 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.44.7_429 (DOI: 10.11458/tsj.44.7_429, CiNii: 1390282763025161344)
3.	Toru Shigemitsu, Fukuda Hiroaki and Junichiro Fukutomi : PIV Measurement of Inlet and Outlet Flow of Contra-Rotating Small-Sized Cooling Fan, International Journal of Fluid Machinery and Systems, Vol.9, No.2, 175-181, 2016. (Summary) Contra-rotating rotors have been adopted for some of the cooling fans to meet the demand for the high pressure and large flow rate. Therefore, it is important to clarify its inlet and outlet flows by experiments for the high performance and stable operation. PIV measurements were conducted at the design and partial flow rates. In the present paper, the inlet and outlet flow conditions of the contra-rotating small-sized cooling fan with a 40mm square casing are studied by using PIV measurement. Furthermore, improvements of the flow condition and design guideline to increase the performance were discussed based on the experimental results. (Keyword) Cooling fan / PIV measurement / Internal flow / Contra-rotating rotor (Link to Publication Site) ● Publication site (DOI): 10.5293/IJFMS.2016.9.2.175 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680274854272 ● Search Scopus @ Elsevier (DOI): 10.5293/IJFMS.2016.9.2.175 (DOI: 10.5293/IJFMS.2016.9.2.175, CiNii: 1390282680274854272)
4.	Toru Shigemitsu, Junichiro Fukutomi and Masaaki Toyohara : Performance and Flow Condition of Cross-Flow Wind Turbine with a Symmetrical Casing Having Side Boards, International Journal of Fluid Machinery and Systems, Vol.9, No.2, 169-174, 2016. (Summary) A cross-flow wind turbine has a high torque coefficient at a low tip speed ratio. Therefore, it is a good candidate for use as a self-starting turbine. Furthermore, it has low noise and excellent stability; therefore, it has attracted attention from the viewpoint of applications as a small wind turbine for an urban district. However, its maximum power coefficient is extremely low (10 %) as compared to that of other small wind turbines. In order to improve the performance and flow condition of the cross-flow rotor, the symmetrical casing with a nozzle and a diffuser are proposed and the experimental research with the symmetrical casing is conducted. The maximum power coefficient is obtained as Cpmax = 0.17 in the case with the casing and Cpmax=0.098 in the case without the casing. In the present study, the power characteristics of the cross-flow rotor and those of the symmetrical casing with the nozzle and diffuser are investigated. Then, the performance and internal flow patterns of the cross-flow wind turbine with the symmetrical casings are clarified. After that, the effect of the side boards set on the symmetrical casing is discussed on the basis of the analysis results. (Keyword) Cross-flow wind turbine / Power coefficient / Torque coefficient / Symmetrical casing / Numerical analysis (Link to Publication Site) ● Publication site (DOI): 10.5293/IJFMS.2016.9.2.169 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680274013568 ● Search Scopus @ Elsevier (DOI): 10.5293/IJFMS.2016.9.2.169 (DOI: 10.5293/IJFMS.2016.9.2.169, CiNii: 1390282680274013568)
5.	Toru Shigemitsu, 竹島康東司 and Junichiro Fukutomi : Influence of Spoke Geometry on Performance and Internal Flow of Contra-Rotating Small-Sized Hydroturbine, Turbomachinery, Vol.44, No.2, 89-97, 2016. (Keyword) Small Hydro Turbine / Contra-Rotating Rotors / Internal flow (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.44.2_89 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390845712978582016 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.44.2_89 (DOI: 10.11458/tsj.44.2_89, CiNii: 1390845712978582016)
6.	Toru Shigemitsu, 田中地洋, 竹島康東司 and Junichiro Fukutomi : Internal Flow of Contra-Rotating Small-Sized Hydro Turbine at Maximum Efficiency Flow Rate, Turbomachinery, Vol.43, No.4, 236-243, 2015. (Summary) Small hydropower generation is one of important alternative energy, and potential of small hydropower is great. Efficiency of small hydro turbines is lower than that of large one. Then, there are demands for small hydro turbines to keep high performance. Therefore, we adopted contra-rotating rotors, which can be expected to achieve high performance. In this research, experimental apparatus of the contra-rotating small hydro turbine with 60 mm casing diameter was manufactured and performance of it was investigated by an experiment. Efficiency of the contra-rotating small hydro turbine was high in pico-hydro turbines and high efficiency could be kept in wide flow rate range. Unsteady internal flow conditions, which were difficult to measure experimentally, were shown by the numerical flow analysis. Further, pressure distributions and wake interactions with a rotor rotation were clarified. Then, a relation between the performance and unsteady internal flow condition was considered by the experimental and numerical analysis results. (Keyword) Small Hydro Turbine / Contra-Rotating Rotors / Internal flow (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.43.4_236 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204545963776 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.43.4_236 (DOI: 10.11458/tsj.43.4_236, CiNii: 1390001204545963776)
7.	Junichiro Fukutomi, Toru Shigemitsu and 飯野峻也 : Effects of eccentric vortex on internal flow and performance of a cross-flow fan, Transactions of the JSME, Vol.81, No.824, 14-00636, 2015. (Summary) In the internal flow of the cross flow fan, the formation of the eccentric vortex centered on the rotor inner periphery is well known. So far, the relationship between fan shape and performance, and the formation mechanism and behavior of the eccentric vortex have been reported. However, few studies have focused on the relevance of the fan performance and the eccentric vortex. In this paper, the structure, behavior and driving power of the eccentric vortex are investigated. Next, the effect of the eccentric vortex on the performance is considered. As a result, the following becomes apparent. The entrance flow of the cross flow fan is sucked towards the eccentric vortex indicating strong suction pressure, and therefore, the velocity at the rotor inlet becomes non-uniform in the circumferential direction. Because inlet velocity becomes fast in the tongue side which is near the eccentric vortex, the driving power of the eccentric vortex becomes large. By generating swirling flow by the change of an entrance shape and decreasing tongue side velocity by the outward centrifugal force of this turning flow, the eccentric vortex power decreases and high fan efficiency is accomplished. Finally, the high-performance design guideline of the cross flow fan by controlling the eccentric vortex is proposed. (Keyword) Cross-flow fan / Internal flow / Eccentric vortex (Link to Publication Site) ● Publication site (DOI): 10.1299/transjsme.14-00636 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680492382976 ● Search Scopus @ Elsevier (DOI): 10.1299/transjsme.14-00636 (DOI: 10.1299/transjsme.14-00636, CiNii: 1390282680492382976)
8.	Toru Shigemitsu, 田中健輔 and Junichiro Fukutomi : PIV Measurement of Inlet and Outlet Flow of High Pressure and High Flow Rate Small-Sized Cooling Fan, Turbomachinery, Vol.43, No.2, 108-114, 2015. (Summary) Data center has been built with spread of cloud computing. Further, electric power consumption of it is growing rapidly. High pressure and high flow rate cooling fans are used for servers in the data center and there is a strong demand to increase pressure and flow rate of it because of increase of quantity of heat from the servers. Contra-rotating rotors have been adopted for some of high pressure and high flow rate cooling fans. It is important to clarify inlet and outlet flows of it by experiments for high performance and stable operation. PIV measurements of a high pressure and high flow rate cooling fan with 40 mm square were conducted and improvements of the flow condition were discussed by the experimental results. (Keyword) Small-Sized Cooling Fan / PIV Measurement / internal flow (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.43.2_108 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204545514368 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.43.2_108 (DOI: 10.11458/tsj.43.2_108, CiNii: 1390001204545514368)
9.	Junichiro Fukutomi, Toru Shigemitsu, Masashi Ichimiya, Takashi Sumitomo and Yoshio Yoshimura : Study of emulsification mechanism and droplet size estimation in a homogenizer, Transactions of the JSME, Vol.80, No.820, 2014. (Summary) A pressure type homogenizer consists of a plunger pump, and a valve part with a narrow channel. It generates effects such as a shear, a turbulent flow and a cavitation between fluid molecules at very short time, and makes a homogeneous emulsification state. If the flow pattern in a valve can be solved in more detail, the more efficient and stabilized emulsification will be attained. However, since it is difficult to measure the size, the pressure and the flow velocity in a narrow gap space by experiment, the details of the mechanism of emulsification by s shear, a turbulent flow, a cavitation and a collision have not been clarified enough. In this research, the size of gap is first calculated from the theoretical equation assumed to be laminar flow, based on the Reynolds number of the gap flow. Next, the pressure, the flow velocity, shearing stress, etc. are calculated. Then, the emulsification mechanism of each part of the valve is clarified by expressing the droplet size as a function of the gap size, the shearing stress and the exit velocity about two kinds of original solutions in which interfacial tension differs. Furthermore, the prediction expression of droplet size obtained by the emulsification is proposed. (Keyword) Shear flow / internal flow / Liquid droplet / numerical simulation / fluid machinery / Homogenizer (Link to Publication Site) ● Publication site (DOI): 10.1299/transjsme.2014fe0358 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680491895424 ● Search Scopus @ Elsevier (DOI): 10.1299/transjsme.2014fe0358 (DOI: 10.1299/transjsme.2014fe0358, CiNii: 1390282680491895424)
10.	Toru Shigemitsu, 田中地洋 and Junichiro Fukutomi : Internal Flow of Contra-Rotating Small Hydro-Turbine at Off-Design Flow Rates, Turbomachinery, Vol.42, No.12, 777-784, 2014. (Keyword) Small Hydro Turbine / Contra-Rotating Rotors / Internal flow (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.42.12_777 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204543991040 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.42.12_777 (DOI: 10.11458/tsj.42.12_777, CiNii: 1390001204543991040)
11.	Toru Shigemitsu, Junichiro Fukutomi, 田中地洋 and 其畑遼介 : Internal Flow with Foreign Vegetable Materials in a Contra-Rotating Small Hydro-Turbine, Turbomachinery, Vol.42, No.6, 363-370, 2014. (Keyword) Small Hydro Turbine / Contra-Rotating Rotors / Internal flow (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.42.6_363 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204544369536 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.42.6_363 (DOI: 10.11458/tsj.42.6_363, CiNii: 1390001204544369536)
12.	久保慧史, Toru Shigemitsu, Junichiro Fukutomi and 石岡竜哉 : Unsteady Internal Flow in a Centrifugal Pump for Low Viscous Fluid Food, Turbomachinery, Vol.41, No.12, 734-742, 2013. (Summary) Fluid machineries for fluid food have been used in wide variety of field i.e. transportation, filling, and improvement of quality of fluid food. Although, flow conditions of these are quite complicated because fluid food is different from water. Therefore, design method based on the internal flow conditions is not conducted. In this research, the centrifugal pump having small number of blade was used to decrease shear loss and keep wide flow passage. In previous studies, it was found that unsteady internal flow condition occurred in a test pump, but those flow phenomena were not clarified. In order to investigate the unsteady internal flow condition in detail, the numerical analysis using low viscous fluid was conducted. In this paper, the unsteady internal flow conditions of centrifugal pump using low viscous fluid were clarified by experimental and unsteady numerical analysis results. In addition to that, the design method based on the internal flow was considered. (Keyword) transfer performance (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.41.734 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204544573440 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.41.734 (DOI: 10.11458/tsj.41.734, CiNii: 1390001204544573440)
13.	Toru Shigemitsu, Junichiro Fukutomi, Wada Takashi and Hirotaka Shinohara : Performance Analysis of Mini Centrifugal Pump with Splitter Blades, Journal of Thermal Science, Vol.22, No.6, 573-579, 2013. (Link to Publication Site) ● Publication site (DOI): 10.1007/s11630-013-0664-4 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s11630-013-0664-4 (DOI: 10.1007/s11630-013-0664-4)
14.	Junichiro Fukutomi, Takashi Sumitomo, Yoshio Yoshimura, Toru Shigemitsu and Masashi Ichimiya : Study of Emulsification Mechanism in a Pressure Type Homogenizer, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.79, No.806, 2030-2040, 2013. (Summary) Emulsification technique is used in broad fields, such as food, chemistry, and medical treatment, and the range of use has been spreading still more. A pressure type homogenizer consists of a plunger pump and a valve part with a narrow channel. It generates the effects of shear, a turbulent flow and cavitation at very short time, and then makes a homogeneous emulsification state. If the flow pattern in the valve can be solved in more detail, the more effective and stabilized emulsification will be attained. However, since the measurement of the size, the pressure and the flow velocity in a narrow gap space by experiments is difficult, the details of the mechanism of emulsification by the shear, the turbulent flow, the cavitation and a collision have not been clarified enough. In this research, the size of gap is first calculated from the theoretical equation assumed to be laminar flow, based on the Reynolds number of the gap flow. Next, the pressure, the flow velocity, shearing stress, etc. are calculated. Then, the emulsification mechanism of each part of the valve is clarified by expressing the droplet size as a function of the gap size, the shearing stress and the exit velocity. (Keyword) Fluid Machinery / Homogenizer / Emulsification / Liquid Droplet / Internal Flow / Shear Flow / Numerical Simulation (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.79.2030 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206261517440 ● Summary page in Scopus @ Elsevier: 2-s2.0-84887488368 (DOI: 10.1299/kikaib.79.2030, CiNii: 1390001206261517440, Elsevier: Scopus)
15.	阿川琢哉, Toru Shigemitsu and Junichiro Fukutomi : Performance Characteristics of Small-Sized Cooling Fan with High Pressure and High Flow Rate, Turbomachinery, Vol.41, No.4, 201-208, 2013. (Summary) Data center has been built with spread of cloud computing. Further, electric power consumption of it is growing rapidly. High power cooling fans are used for servers in the data center and there is a strong demand to increase power of it because of increase of quantity of heat from the servers. Contra-rotating rotors have been adopted for some of the high power cooling fans. It is important to clarify complicated internal flow condition and influence of a geometric shape of the cooling fans on performance and internal flow condition to achieve the high performance cooling fans. The performance characteristics of the front and rear rotor of high power contra-rotating small-sized cooling fan is clarified by numerical analysis and design guideline to improve the performance is discussed. (Keyword) Cooling fan / Performance / Numerical Analysis / Internal flow (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.41.201 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679520905728 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.41.201 (DOI: 10.11458/tsj.41.201, CiNii: 1390282679520905728)
16.	Toru Shigemitsu, Junichiro Fukutomi and Agawa Takuya : Internal Flow Condition of High Power Contra-Rotating Small-Sized Axial Fan, International Journal of Fluid Machinery and Systems, Vol.6, No.1, 25-32, 2013. (Link to Publication Site) ● Publication site (DOI): 10.5293/IJFMS.2013.6.1.025 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84875011687 (DOI: 10.5293/IJFMS.2013.6.1.025, Elsevier: Scopus)
17.	Toru Shigemitsu, Junichiro Fukutomi and 阿川琢哉 : Unsteady Internal Flow of High Pressure and Large Flow Rate Small-Sized Cooling Fan, Turbomachinery, Vol.41, No.3, 185-191, 2013. (Summary) Data center has been built with spread of cloud computing. Further, electric power consumption of it is growing rapidly. High pressure and large flow rate cooling fans are used for servers in the data center and there is a strong demand to increase pressure and flow rate of it because of increase of quantity of heat from the servers. Contra-rotating rotors have been adopted for some of high pressure and large flow rate cooling fans. It is important to clarify unsteady internal flow condition of it for high performance and stable operation. Numerical analysis of high pressure and large flow rate cooling fan with 40 mm square was conducted and unsteady internal flow conditions were discussed in this research. (Keyword) Cooling Fan / Performance / Numerical Analysis / Unsteady Internal Flow (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.41.185 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679520500864 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.41.185 (DOI: 10.11458/tsj.41.185, CiNii: 1390282679520500864)
18.	Toru Shigemitsu, Junichiro Fukutomi, Kaji Kensuke and Wada Takashi : Unsteady Internal Flow Conditions of Mini Centrifugal Pump with Splitter Blades, Journal of Thermal Science, Vol.22, No.1, 86-91, 2013. (Link to Publication Site) ● Publication site (DOI): 10.1007/s11630-013-0596-z (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s11630-013-0596-z (DOI: 10.1007/s11630-013-0596-z)
19.	Toru Shigemitsu, Junichiro Fukutomi and 其畑遼介 : Study on a Contra-Rotating Small Hydro Turbine, Turbomachinery, Vol.41, No.2, 110-115, 2013. (Keyword) Small Hydro Turbine / Contra-Rotating Rotors / Performance / Internal Flow (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679521166848 (CiNii: 1390282679521166848)
20.	Toru Shigemitsu, Junichiro Fukutomi, Kaji Kensuke and Wada Takashi : Performance and Internal Flow Condition of Mini Centrifugal Pump with Splitter Blades, International Journal of Fluid Machinery and Systems, Vol.6, No.1, 11-17, 2013. (Link to Publication Site) ● Publication site (DOI): 10.5293/IJFMS.2013.6.1.011 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84875040519 (DOI: 10.5293/IJFMS.2013.6.1.011, Elsevier: Scopus)
21.	Tasuyuki Nishi, 稲垣照美, 近江谷亮太 and Junichiro Fukutomi : Study on Internal Flow of an Undershot-Type Cross-Flow Water Turbine, Turbomachinery, Vol.41, No.1, 51-57, 2013. (Summary) The aim of this study is to develop an ultralow-head water turbine for an open channel, such as an irrigation channel, in order to effectively use hitherto unused hydropower energies. By focusing on a cross-flow runner, we eliminated the casing and used the application as a water turbine(undershot-type cross-flow water turbine)for an open channel. We investigated the performance and internal flow of the water turbine at a constant flow rate through an experiment and computational fluid dynamics(CFD)analysis. As a result, the following facts became clear. The performance and internal flow of the proposed water turbine with a free surface can be predicted to a certain extent by CFD analysis. At the best-efficiency-point rotational speed, <I>ϑ</I>=21-91° is the first-stage inlet area and <I>ϑ</I>=91-132° is the second-stage outlet area on the outer circumference of a runner. Moreover, on the inner circumference of the impeller, <I>ϑ</I>=48-109° is the first-stage outlet area and <I>ϑ</I>=109-141° is the second-stage inlet area. (Keyword) Water Turbine / Cross-Flow Turbine / Open Channel / internal flow / Free surface / CFD (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.41.51 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679521047552 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.41.51 (DOI: 10.11458/tsj.41.51, CiNii: 1390282679521047552)
22.	Tasuyuki Nishi, Junichiro Fukutomi and 酒井蔣実 : クローズド形一枚羽根遠心羽根車に作用する変動流体力の成分分析, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.78, No.796, 2062-2075, 2012. (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.78.2062 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84872281160 (DOI: 10.1299/kikaib.78.2062, Elsevier: Scopus)
23.	Ryosuke Sonohata, Junichiro Fukutomi and Toru Shigemitsu : Study on Contra-Rotating Small-Sized Axial Flow Hydro Turbine, Open Journal of Fluid Dynamics, Vol.2, No.4A, 318-323, 2012. (Link to Publication Site) ● Publication site (DOI): 10.4236/ojfd.2012.24A039 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4236/ojfd.2012.24A039 (DOI: 10.4236/ojfd.2012.24A039)
24.	Junichiro Fukutomi, Rei Nakamura, Toru Shigemitsu and 法貴雄介 : クロスフローファンの入口予旋回流れとその制御, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.78, No.795, 1919-1927, 2012. (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.78.1919 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1299/kikaib.78.1919 (DOI: 10.1299/kikaib.78.1919)
25.	Toru Shigemitsu, Junichiro Fukutomi and Shimizu Hiroki : Influence of Blade Row Distance on Performance and Flow Condition of Contra-Rotating Small-Sized Axial Fan, International Journal of Fluid Machinery and Systems, Vol.5, No.4, 161-167, 2012. (Link to Publication Site) ● Publication site (DOI): 10.5293/IJFMS.2012.5.4.161 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84870324963 (DOI: 10.5293/IJFMS.2012.5.4.161, Elsevier: Scopus)
26.	久保慧史, Junichiro Fukutomi and Toru Shigemitsu : 低粘度流体食品用遠心ポンプのチップクリアランスが性能と内部流れに及ぼす影響, Turbomachinery, Vol.40, No.10, 577-583, 2012. (Keyword) transfer performance (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679521694848 (CiNii: 1390282679521694848)
27.	Toru Shigemitsu, Junichiro Fukutomi, 清水大喜 and 井内一博 : Effects of Rotational Speed Control on Internal Flow of Contra-Rotating Small-Sized Axial Fan, Turbomachinery, Vol.40, No.10, 584-591, 2012. (Summary) Small-sized axial fans are used as air cooler for electric equipments. But there is a strong demand for higher power of fans according to the increase of quantity of heat from electric devices. Contra-rotating rotors were proposed for the improvement of the performance of small-sized axial fans and the advantages of it on the point of view of the performance were confirmed. On the other hand, the contra-rotating small-sized axial fan is operated at off design flow rates and the performance deteriorates at off design flow rates. Therefore, rotational speed control of each front and rear rotor is proposed for the improvement of the performance at off design flow rates in this research. In the present paper, the performance of the contra-rotating small-sized axial fan under the rotational speed control is shown and the internal flow conditions of each rotational speed control method are clarified by the numerical analysis results. (Keyword) Small-Sized Axial Fan / Contra-Rotating Rotors / Rotational Speed Control / Performance / Internal Flow (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.40.584 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204544985216 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.40.584 (DOI: 10.11458/tsj.40.584, CiNii: 1390001204544985216)
28.	西泰行, Junichiro Fukutomi and 酒井蔣実 : クローズド形一枚羽根遠心ポンプの変動流体力に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.78, No.788, 837-849, 2012. (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.78.837 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84862135356 (DOI: 10.1299/kikaib.78.837, Elsevier: Scopus)
29.	Toru Shigemitsu, Junichiro Fukutomi, Yuki Okabe, Kazuhiro Iuchi and Hiroki Shimizu : Unsteady flow condition of contra-rotating small-sized axial fan, Journal of Thermal Science, Vol.20, No.6, 495-502, 2011. (Link to Publication Site) ● Publication site (DOI): 10.1007/s11630-011-0501-6 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s11630-011-0501-6 (DOI: 10.1007/s11630-011-0501-6)
30.	Nishi Yasuyuki, Junichiro Fukutomi and Fujiwara Ryota : Radial Thrust of Single-Blade Centrifugal Pump, International Journal of Fluid Machinery and Systems, Vol.4, No.4, 387-395, 2011. (Link to Publication Site) ● Publication site (DOI): 10.5293/IJFMS.2011.4.4.387 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.5293/IJFMS.2011.4.4.387 (DOI: 10.5293/IJFMS.2011.4.4.387)
31.	Toru Shigemitsu, Junichiro Fukutomi, 井内一博 and 其畑遼介 : Performance and Internal Flow of High Power Cooling Fan, Turbomachinery, Vol.39, No.12, 746-752, 2011. (Summary) Data center has been built with spread of cloud computing. Further, electric power consumption of it is growing rapidly. High power cooling fans are used for servers in the data center and there is a strong demand to increase power of it because of increase of quantity of heat from the servers. Contra-rotating rotors have been adopted for some of the high power cooling fans. It is important to clarify complicated internal flow condition and influence of a geometric shape of the cooling fans on performance and internal flow condition to achieve the high performance cooling fans. Numerical analysis of a cooling fan with 40 mm square was conducted and influence of tip clearance on performance was investigated experimentally in this research. (Keyword) Cooling fan / Performance / Numerical Analysis / Internal flow / Tip clearance (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.39.746 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679521893760 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.39.746 (DOI: 10.11458/tsj.39.746, CiNii: 1390282679521893760)
32.	西泰行, 稲垣照美, 近江谷亮太, 立川力, 小寺正雄 and Junichiro Fukutomi : 開水路に設置したクロスフロー水車に関する研究, Turbomachinery, Vol.39, No.8, 467-474, 2011. (Keyword) Water Turbine / Cross-Flow Turbine / Open Channel / Performance / internal flow (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204545339904 (CiNii: 1390001204545339904)
33.	Toru Shigemitsu, Junichiro Fukutomi and Kensuke Kaji : Influence of Blade Outlet Angle and Blade Thickness on Performance and Internal Flow Conditions of Mini Centrifugal Pump, International Journal of Fluid Machinery and Systems, Vol.4, No.3, 317-323, 2011. (Link to Publication Site) ● Publication site (DOI): 10.5293/IJFMS.2011.4.3.317 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.5293/IJFMS.2011.4.3.317 (DOI: 10.5293/IJFMS.2011.4.3.317)
34.	西泰行, Junichiro Fukutomi, Toru Shigemitsu and 東出暁 : 翼先端流れに着目した斜流ポンプの不安定特性改善に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.77, No.779, 1484-1492, 2011. (Summary) Instability characteristics generated with partial flow rate in a mixed-flow pump have bad influence during the pump operation. This paper is described on the improvement of instability characteristics in a mixed-flow pump based on flow near blade tip. At first it was examined about the influence of the suction flow channel diameter which gave to performance and internal flow of mixed-flow pumps experimentally. Furthermore, it was examined about influence when it combined control of blade loading distributions near blade tip. As a result, pump efficiency fell at flow rate of the best efficiency a little when we reduced suction flow channel diameter. However, instability characteristics were improved so that a reverse flow developed at the impeller inlet tip side with the decrease of the flow rate slowly. In addition, about 82% head falls of instability characteristics were improved when we combined reduction of suction diameter and the impeller of aft-loading. (Keyword) Turbomachinery / Mixed-Flow Pump / Internal Flow / Instability Characteristics / Blade Tip (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.77.1484 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206261627776 ● Search Scopus @ Elsevier (DOI): 10.1299/kikaib.77.1484 (DOI: 10.1299/kikaib.77.1484, CiNii: 1390001206261627776)
35.	Toru Shigemitsu, Junichiro Fukutomi, 岡本慎司 and 久保慧史 : Study on Performance and Internal Flow of Fluid Food Pump, Turbomachinery, Vol.39, No.6, 366-372, 2011. (Summary) Fluid machineries for fluid food have been used in wide variety of field i.e. transportation, filling and improvement of thequality of fluid food. Although, flow conditions of it are quite complicated because fluid food is different from water.Therefore, the design method based on the internal flow conditions is not conducted. In this research, turbo-pump havingsmall number of blade number was used to decrease shear loss and keep wide flow passage. In this paper, performance andinternal flow conditions of turbo-pump using low viscous fluid were clarified by experimental and numerical analysisresults. (Keyword) Centrifugal pump / Performance / Numerical Analysis / Internal flow / Shear stress (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.39.366 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679522226688 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.39.366 (DOI: 10.11458/tsj.39.366, CiNii: 1390282679522226688)
36.	Junichiro Fukutomi, Toru Shigemitsu and Hiroki Daito : Study on Performance and Flow Condition of Cross-flow Wind Turbine with a Symmetrical Casing, Journal of Fluids Engineering - Transactions of the ASME, Vol.133, No.5, 051101, 2011. (Link to Publication Site) ● Publication site (DOI): 10.1115/1.4004023 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1115/1.4004023 (DOI: 10.1115/1.4004023)
37.	Toru Shigemitsu, Junichiro Fukutomi, 名定亮一 and 岡本慎司 : Study on Performance and Internal Flow Condition of Mini Turbopump, Turbomachinery, Vol.39, No.4, 208-215, 2011. (Summary) Mini turbo-pumps which have a diameter smaller than 100 mm are utilized in many fields. It is desirable that the miniturbo-pump design is as simple as possible due to the limitation of the precision for manufacture. But the design method forthe mini turbo-pump is not established. Therefore, we started the research of the mini turbo-pump for the purpose of developmentof high performance mini turbo-pump with simple structure. It is clarified from the numerical results that head andefficiency decrease drastically with the increase of the tip clearance and the flow condition near the tip region is influencedby the leakage flow from the blade tip. In the present paper, the performance of the mini turbo-pump is shown and the internalflow condition is clarified with the results of the numerical flow analysis. Furthermore, the effects of the tip clearance onthe performance are investigated and high performance rotor design for mini turbo-pump would be considered. (Keyword) Mini Turbo-Pump / Centrifugal pump / Performance / Internal flow / Leakage flow / Tip clearance (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.39.208 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204545740416 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.39.208 (DOI: 10.11458/tsj.39.208, CiNii: 1390001204545740416)
38.	西泰行, Junichiro Fukutomi, Toru Shigemitsu and 東出暁 : 斜流ポンプの内部流れと不安定特性に及ぼす翼端羽根負荷分布の影響, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.77, No.775, 815-822, 2011. (Summary) Instability characteristics generated with partial flow rate in a mixed-flow pump have bad influence during the pump operation. In this paper, a method to control blade loading distributions of the mixed-flow pump by a simple and easy method is shown. This method was applied to control of the blade loading distribution of the blade tip in mixed-flow pumps. Furthermore, performance and the internal flow of these pumps were examined experimentally. As a result, head and pump efficiency fell at flow rate of the best efficiency in the impeller of aft-loading, but the instability characteristics were largely improved. In addition, a reverse flow suddenly developed at the impeller inlet tip side with the decrease of the flow rate in the impeller of fore-loading, but it was shown clearly that the reverse flow did not suddenly develop in the impeller of aft-loading. (Keyword) Turbomachinery / Mixed-Flow Pump / Internal Flow / Instability Characteristics / Blade Loading (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.77.815 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206261769344 ● Search Scopus @ Elsevier (DOI): 10.1299/kikaib.77.815 (DOI: 10.1299/kikaib.77.815, CiNii: 1390001206261769344)
39.	Toru Shigemitsu, Junichiro Fukutomi, 名定亮一 and 梶兼輔 : 小型ターボポンプの羽根出口角が羽根車性能に及ぼす影響, Turbomachinery, Vol.39, No.2, 112-118, 2011. (Keyword) Mini Turbo-Pump / Centrifugal pump / Performance / Internal flow / Blade outlet angle (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204546123776 (CiNii: 1390001204546123776)
40.	Toru Shigemitsu, Junichiro Fukutomi, Ryoichi Nasada and Kensuke Kaji : The Effect of Blade Outlet Angle on Performance and Internal Flow Condition of Mini Turbo-Pump, Journal of Thermal Science, Vol.20, No.1, 32-38, 2011. (Link to Publication Site) ● Publication site (DOI): 10.1007/s11630-011-0431-3 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s11630-011-0431-3 (DOI: 10.1007/s11630-011-0431-3)
41.	西泰行 and Junichiro Fukutomi : らせん状吸込流路を有する一枚羽根遠心ポンプのラジアルスラストに及ぼす羽根出口幅の影響, Turbomachinery, Vol.39, No.1, 47-56, 2011. (Keyword) Sewage Pump / Centrifugal Impeller / Single-Blade / Radial Thrust / Performance (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679522814976 (CiNii: 1390282679522814976)
42.	Toru Shigemitsu, Junichiro Fukutomi, 岡部佑樹 and 井内一博 : 二重反転形小型軸流ファンの性能特性と内部流れに関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.76, No.771, 1720-1726, 2010. (Summary) Small-sized axial fans are used as air cooler for electric equipments. But there is a strong demand for higher power of fans according to the increase of quantity of heat from electric devices. Therefore, higher rotational speed design is conducted although, it causes the deterioration of efficiency and the increase of noise. Then the adoption of contra-rotating rotors for the small-sized axial fan is proposed for the improvement of performance. In the present paper, the performance curves of the contra-rotating small-sized axial fan with 100mm diameter are shown and the velocity distributions with the designed flow rate at the inlet and the outlet of each front and rear rotors are clarified with experimental results. Furthermore, the flow conditions between front and rear rotors of the contra-rotating small-sized axial fan are investigated by numerical analysis results and higher performance design of the contra-rotating small-sized axial fan are discussed. (Keyword) Small-Sized Axial Fan / Contra-Rotating Rotors / Numerical Flow Analysis / Performance / Flow Field (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681271246080 ● Summary page in Scopus @ Elsevier: 2-s2.0-79751495478 (CiNii: 1390282681271246080, Elsevier: Scopus)
43.	Toru Shigemitsu, Junichiro Fukutomi, Yuki Okabe and Kazuhiro Iuchi : Performance and Flow Condition of Contra-rotating Small-sized Axial Fan at Partial Flow Rate, International Journal of Fluid Machinery and Systems, Vol.3, No.4, 271-278, 2010. (Link to Publication Site) ● Publication site (DOI): 10.5293/IJFMS.2010.3.4.271 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.5293/IJFMS.2010.3.4.271 (DOI: 10.5293/IJFMS.2010.3.4.271)
44.	Shintarou Sakai, Toru Shigemitsu, Tsukasa Matsuoka and Junichiro Fukutomi : 未加硫ゴムの充填過程における流れの現象と不均一な充填, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.76, No.762, 186-193, 2010. (Summary) Rubber products like oil seal are produced by vulcanization molding and the vulcanization molding of rubber product is performed by past experience, trial and error. It is important issues to decrease the product cost, reduce defective products and solve the environmental problems by saving natural resources. If the vulcanization moldings of rubber products are reappeared by computer simulation, it is very useful and it could contribute to solve the above problems. In order to reduce surplus rubber and defective product, numerical analysis of flow phenomena of unvulcanized rubber was performed using commercial software FIDAP. In several types of rubber product models, the analysis was conducted taken the characteristic of visco-elasticity fluid obtained by experiment, without considering the effect of the heat. And experiments were conducted for the comparison of numerical results and actual phenomena. In the experiment, vulcanization process was stopped by arbitrary interval. Then the filling state and the shape of the rubber at each interval are observed in numerical and experiment results. The results showed that the filling state of numerical results represented good agreement with the experimental results. And it was clarified from the numerical analysis that shear stress acted when the unvulcanized rubber flowed in narrow channel and there was the relation between pressure and velocity. In the present paper, the flow phenomena under the condition of the compression molding are shown and the optimum flow conditions are discussed from the numerical results. Furthermore mechanism of occurrence of defective products is considered with the experimental and the numerical results. (Keyword) 非ニュートン流体 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206296802176 ● Summary page in Scopus @ Elsevier: 2-s2.0-77952285154 (CiNii: 1390001206296802176, Elsevier: Scopus)
45.	Toru Shigemitsu, Junichiro Fukutomi and 岡部佑樹 : 小型軸流ファンへの二重反転形羽根車の採用について, Turbomachinery, Vol.38, No.2, 93-99, 2010. (Summary) Small-sized axial fans are used as air cooler for electric equipments. But there is a strong demand for higher power of fan according to the increase of quantity of heat from electric devices. Therefore, higher rotational speed design is conducted although, it causes the deterioration of the efficiency and the increase of noise. Then, the adoption of contra-rotating rotors for the small-sized axial fan is proposed for the improvement of performance. In the present paper, the experimental results of a conventional small-sized axial fan with 100 mm diameter are shown and the important points to adopt the contra-rotating rotors are considered with these results. Furthermore, the performance and the flow field of the contra-rotating smallsized axial fan are clarified by the numerical analysis results and the advantages of the adoption of the contra-rotating rotors for the small-sized axial fan are discussed. (Keyword) Small-Sized Axial Fan / Contra-Rotating Rotors / Numerical Flow Analysis / Performance / Flow Field (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.38.93 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204544041472 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.38.93 (DOI: 10.11458/tsj.38.93, CiNii: 1390001204544041472)
46.	西泰行, 藤原亮太 and Junichiro Fukutomi : 羽根出口角の異なる一枚羽根遠心ポンプの損失解析, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.76, No.761, 76-84, 2010. (Summary) Single-blade centrifugal pump is used as a sewage pump widely. However, hydraulic losses increase because the impeller width is large as for single-blade centrifugal pump. It is extremely complicated, besides, because the internal flow of single-blade centrifugal pump changes greatly by an impeller position and changes by the flow rate. Therefore, a quantitative prediction and the elucidation of the generation mechanism of unsteady hydraulic losses are expected to make this kind of pump high efficiency. In this study, loss analysis was performed about two kinds of single-blade centrifugal impeller with different impeller outlet angle. As a result, the effect of the impeller outlet angle which gave it to performance and hydraulic losses was clarified. Furthermore, the momentary behavior of performance and hydraulic losses was shown, and their relations with the impeller inlet and outlet flow became clear. (Keyword) turbomachinery / centrifugal pump / Single Blade / Performance / Loss Analysis / CFD (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206262959488 ● Summary page in Scopus @ Elsevier: 2-s2.0-77950252149 (CiNii: 1390001206262959488, Elsevier: Scopus)
47.	Toru Shigemitsu, Junichiro Fukutomi and Yuki Okabe : Performance and Flow Condition of Small-Sized Axial Fan and Adoption of Contra-Rotating Rotors, Journal of Thermal Science, Vol.19, No.1, 1-6, 2010. (Link to Publication Site) ● Publication site (DOI): 10.1007/s11630-010-0001-0 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s11630-010-0001-0 (DOI: 10.1007/s11630-010-0001-0)
48.	Yasuyuki Nishi, Nobuyuki Matsuo and Junichiro Fukutomi : Design Method for Single-Blade Centrifugal Pump Impeller, Journal of Fluid Science and Technology, Vol.4, No.3, 786-800, 2009. (Summary) The sewage pumps are demanded a high pump efficiency and a performance in passing foreign bodies. Therefore, the impeller used by these usages requires the large passed particle size (minimum particle size in the pump). However, because conventional design method of pump impeller results in small impeller exit width, it is difficult to be applied to the design of single-blade centrifugal pump impeller which is used as a sewage pump. This paper proposes a design method for single-blade centrifugal pump impeller. As a result, the head curve of the impeller designed by the proposed design method satisfied design specifications, and pump efficiency was over 62% more than conventional single-blade centrifugal pump impeller. By comparing design values with CFD analysis values, the suction velocity ratio of the design parameter agreed well with each other, but the relative velocity ratio did not agree due to the influence of the backflow of the impeller entrance. (Keyword) turbomachinery / Centrifugal Impeller / Single Blade / Design Method / CFD (Link to Publication Site) ● Publication site (DOI): 10.1299/jfst.4.786 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205247303936 ● Search Scopus @ Elsevier (DOI): 10.1299/jfst.4.786 (DOI: 10.1299/jfst.4.786, CiNii: 1390001205247303936)
49.	Toru Shigemitsu, Junichiro Fukutomi and 白井祐太郎 : ケーシング幅が二重反転多翼ファンの性能に及ぼす影響, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.75, No.760, 2488-2494, 2009. (Summary) A sirocco fan using contra-rotating rotors in which an inner rotor was settled inside the sirocco fan rotor and each rotor rotated in an opposite direction was proposed for the purpose of getting the higher pressure and making the structure of a sirocco fan compact more. If the high discharge pressure is obtained with the adoption of the contra-rotating rotors, it could be used for various purposes. Pressure coefficient of the sirocco fan with contra-rotating rotors was 2.4 times as high as the conventional sirocco fan and the maximum efficiency point of contra-rotating rotors shifted larger flow rate than the conventional sirocco fan. On the other hand, it was clarified from the flow measurement results that the larger back flow region than conventional one occurred at the shroud of the casing in the case of contra-rotating type and this would induce decrease of the efficiecy. In the present paper, the performance of the conventional sirocco fan and the sirocco fan with contra-rotating rotors are shown and the internal flow field at the outlet of the outer rotor of both cases is clarified Then, the effect of casing width on the performance and the internal flow field is investigated and the casing width which would be suitable for the contra-rotating type would be discussed. (Keyword) Sirocco Fan / sirocco fan / High Pressure / high pressure / Contra-rotating Rotors / contra-rotating rotors / Internal Flow / internal flow / Back Flow / back flow / Casing Width / casing width (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206260662656 ● Summary page in Scopus @ Elsevier: 2-s2.0-77949398821 (CiNii: 1390001206260662656, Elsevier: Scopus)
50.	西泰行, 藤原亮太 and Junichiro Fukutomi : 一枚羽根遠心ポンプのラジアルスラストに及ぼす羽根出口角の影響, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.75, No.760, 2479-2487, 2009. (Summary) Single-blade centrifugal pump is widely used as a sewage pump. However, a single-blade is acted on by a large thrust during the pump operation because of the geometrical asymmetry of the impeller. Therefore when the reliability of the pump is secured, it is necessary to grasp a radial thrust quantitatively and elucidate the behavior and the dominant factors. This study investigated the radial thrust acting on two kinds of single-blade centrifugal impeller of different impeller outlet angle by an experiment and CFD analysis. Furthermore, as for the radial thrust to act on two kinds of impellers, the radial thrust was modeled by a combination of three components, unsteady, momentum and pressure components. As a result, the effect of the impeller outlet angle on the radial thrust and the each divided components was clarified. (Keyword) turbomachinery / centrifugal pump / Single Blade / Radial Thrust / CFD (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206295146240 ● Summary page in Scopus @ Elsevier: 2-s2.0-77949411683 (CiNii: 1390001206295146240, Elsevier: Scopus)
51.	住友尚志, Junichiro Fukutomi, Toru Shigemitsu and 吉村圭央 : The shapes of valves and emulsification action in a homogenizer, Nippon Shokuhin Kogaku Kaishi, Vol.10, No.4, 215-222, 2009. (Summary) The homogenizer basically consists of a high-pressure plunger pump usually with triple plungers to minimize pressure fluctuations and a homogenizing valve with a narrow gap. However, the flow within the homogenizing valve is not clarified theoretically. In this paper, the influence of shape modification of the homogenizing valve was investigated in the emulsification action. The experiments using a small homogenizer are conducted. We studied the influence of the flow pattern (pressure distributions, shear stress) on the droplet size distribution obtained in the experiment, and investigated the relation between the shear flow and the emulsification action in the homogenizing valve. In this experiment, two valve types (sharp type and flat type) were applied. The pressure drop in the valve and the parallel gap part length were changed. The droplet size distribution results obtained in the emulsification tests could be analyzed based on the average value of the wall shear stress in the parallel gap part through the above experiments and calculation results. (Keyword) Homogenizing valve / Shear flow / Internal flow / Droplet disruption / Shapes of valves (Link to Publication Site) ● Publication site (DOI): 10.11301/jsfe.10.215 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680720295680 ● Summary page in Scopus @ Elsevier: 2-s2.0-77950451966 (DOI: 10.11301/jsfe.10.215, CiNii: 1390282680720295680, Elsevier: Scopus)
52.	Toru Shigemitsu, Junichiro Fukutomi and Yuichi TAKEYAMA : Study on Performance Improvement of Cross-Flow Wind Turbine with Symmetrical Casing, Journal of Environment and Engineering, Vol.4, No.3, 490-501, 2009. (Summary) A cross-flow wind turbine has a high torque coefficient at a low tip speed ratio. Therefore, it is a good candidate for use as a self-starting turbine. Furthermore, it has low noise and excellent stability; therefore, it has attracted attention from the viewpoint of applications as a small wind turbine for an urban district. However, its maximum power coefficient is extremely low (10 %) as compared to that of other small wind turbines. In order to improve the performance and the flow condition of the cross-flow rotor, symmetrical casings with a nozzle and a diffuser are proposed and experimental research with two types of symmetrical casings is conducted. The maximum power coefficient is obtained as Cpmax = 0.17 for casing 2 and Cpmax=0.098 for casing 1. In the present study, power characteristics of the cross-flow rotor and those of the symmetrical casings with the nozzle and the diffuser are investigated. Then, the performance and internal flow patterns of the cross-flow wind turbine with the symmetrical casings are clarified. After that, the effect of the symmetrical casings on the performance of the turbine is discussed on the basis of the analysis results. (Keyword) Wind Turbine / Cross-Flow Rotor / Power Coefficient / Torque Coefficient / Symmetrical Casing (Link to Publication Site) ● Publication site (DOI): 10.1299/jee.4.490 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680238599040 ● Search Scopus @ Elsevier (DOI): 10.1299/jee.4.490 (DOI: 10.1299/jee.4.490, CiNii: 1390282680238599040)
53.	住友尚志, Junichiro Fukutomi, Toru Shigemitsu, 石田直樹 and 吉村圭央 : 圧力式ホモジナイザーにおける内部流れと乳化効果の研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.75, No.759, 2199-2206, 2009. (Summary) The homogenizer is extensively used to emulsify, disperse the products in various industrial fields including: food, chemical, pharmaceutical and biotechnology. The homogenizer basically consists of a high-pressure plunger pump usually with triple plungers to minimize pressure fluctuations and a homogenizing valve with a narrow gap. However, the flow within the homogenizing valve is not clarified theoretically. If the flow pattern within the homogenizing valve could be solved, a more efficient and stabilized emulsification could be carried out. In this paper, the influence of shape modification of the homogenizing valve was investigated in the emulsification effect. The experiments using a small homogenizer are conducted. We studied the influence of the flow pattern (velocity distributions, pressure distributions, shear stress) on the drop size distribution obtained in the experiment, and investigated the relation between the average value of wall shear stress and the emulsification effect in the homogenizing valve. The flow patterns were investigated using a Computational Fluid Dynamic model of the flow in the homogenizing valve. The purpose of this paper is to clarify the effects of differences in the shapes of valves on the results of emulsification. (Keyword) Shear Flow / Internal Flow / Liquid Droplet / Numerical Simulation / Fluid Machinery / Homogenizer (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206296473088 ● Summary page in Scopus @ Elsevier: 2-s2.0-76349093175 (CiNii: 1390001206296473088, Elsevier: Scopus)
54.	Toru Shigemitsu, Akinori Furukawa, Satoshi WATANABE, Kusuo OKUMA and Junichiro Fukutomi : Internal Flow Measurement with LDV at Design Point of Contra-Rotating Axial Flow Pump, Journal of Fluid Science and Technology, Vol.4, No.3, 723-734, 2009. (Summary) The adoption of the contra-rotating rotor has been proposed in response to a demand for the axial flow pump with higher specific speed. The internal flow field and blade rows interactions between front and rear rotors should be considered in the design for higher performance and more stable operation, but has not been clarified yet. The flow field in contra-rotating axial flow pump was measured at various flow rates with the LDV and wall pressure measurements. In the present paper, the experimental and numerical results in the flow field between front and rear rotors are shown at the design flow rate and the flow behaviors are discussed, related on blade loading, blade tip leakage flow, wake and blade rows interaction. (Keyword) Turbomachinery / Axial Flow Pump / Contra-rotating Rotors / Wall Pressure Measurement / Blade Rows Interaction / Internal Flow (Link to Publication Site) ● Publication site (DOI): 10.1299/jfst.4.723 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205245334528 ● Search Scopus @ Elsevier (DOI): 10.1299/jfst.4.723 (DOI: 10.1299/jfst.4.723, CiNii: 1390001205245334528)
55.	Yasuyuki Nishi, Nobuyuki Matsuo and Junichiro Fukutomi : Loss Analysis of a New Type of Sewage Pump, Journal of Environment and Engineering, Vol.4, No.2, 362-374, 2009. (Summary) Authors have been proposing a new type of sewage pump impeller designed to further improve pump efficiency and performance in passing foreign bodies. And pump performance, internal flow and behavior of the radial thrust have been clarified by LDV measurement and CFD analysis. However, hydraulic design of pumps is integral calculus operation whereas flow analysis is differential calculus operation. Therefore, even if complicated internal flow was clarified by CFD analysis, it is difficult to improve pump performance if the cause and outbreak mechanism of each hydraulic loss were not clarified. This paper proposes loss analytical method of this pump equipped with a single blade impeller. As a result of having compared experimental values and CFD analysis values with loss analysis values about the head curve, they almost matched in a wide range of flow rates. When the flow flows backward to the impeller from the volute casing, the hydraulic loss becomes small in an appearance, but the power loss becomes excessive and the pump efficiency decreases. (Keyword) turbomachinery / Sewage Pump / Performance / internal flow / CFD / Loss Analysis (Link to Publication Site) ● Publication site (DOI): 10.1299/jee.4.362 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205263250304 ● Search Scopus @ Elsevier (DOI): 10.1299/jee.4.362 (DOI: 10.1299/jee.4.362, CiNii: 1390001205263250304)
56.	Yasuyuki Nishi, Nobuyuki Matsuo and Junichiro Fukutomi : A Study on Internal Flow in a New Type of Sewage Pump (2nd Report, Influence of Impeller Blade Loading and Volute Casing), Journal of Fluid Science and Technology, Vol.4, No.3, 661-672, 2009. (Summary) Sewage pumps are designed with a wide flow channel by, for example, sacrificing some efficiency and reducing the number of blades, in order to prevent plugging with foreign bodies. Authors have been proposing a new type of sewage pump impeller designed to further improve pump efficiency and performance in passing foreign bodies. This sewage pump impeller has a structure in which the suction flow channel of closed type non-clog pump is wound in a helical spiral. The focus of this research was to investigate internal flow in this single blade sewage pump impeller by LDV measurement and CFD. As a result of having examined influence of impeller blade loading and volute casing, it clearly indicated the following facts. As well as influence of impeller blade middle loading and influence of the secondary flow, by increase of slip by influence of volute casing, static pressure and total pressure suddenly decrease together towards the end from impeller blade middle neighborhood. (Keyword) turbomachinery / Sewage Pump / internal flow / Impeller Blade Loading LDV / CFD (Link to Publication Site) ● Publication site (DOI): 10.1299/jfst.4.661 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680223789696 ● Search Scopus @ Elsevier (DOI): 10.1299/jfst.4.661 (DOI: 10.1299/jfst.4.661, CiNii: 1390282680223789696)
57.	Yasuyuki Nishi, Nobuyuki Matsuo and Junichiro Fukutomi : A Study on Internal Flow in a New Type of Sewage Pump (1st Report, Comparison between Experiment and CFD Calculation), Journal of Fluid Science and Technology, Vol.4, No.3, 648-660, 2009. (Summary) Sewage pumps are designed with a wide flow channel by, for example, sacrificing some efficiency and reducing the number of blades, in order to prevent plugging with foreign bodies. Authors have been proposing a new type of sewage pump impeller designed to further improve pump efficiency and performance in passing foreign bodies. This sewage pump impeller has a structure in which the suction flow channel of closed type non-clog pump is wound in a helical spiral. The focus of this research was to investigate internal flow in this single blade sewage pump impeller. The results clearly indicated the following facts. As a result of having compared experimental results by LDV with calculated results by CFD, there is the difference about the radial component of absolute velocity, but agrees about pump performance and the tangential component comparatively well. A flow to circulate through in the impeller again is accepted by an experiment, and the sign is accepted by CFD in a specific impeller position. (Keyword) turbomachinery / Sewage Pump / Performance / internal flow / LDV / CFD (Link to Publication Site) ● Publication site (DOI): 10.1299/jfst.4.648 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205245397248 ● Search Scopus @ Elsevier (DOI): 10.1299/jfst.4.648 (DOI: 10.1299/jfst.4.648, CiNii: 1390001205245397248)
58.	西泰行, 藤原亮太 and Junichiro Fukutomi : 一枚羽根遠心ポンプのラジアルスラスト, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.75, No.754, 1634-1641, 2009. (Summary) Single-blade centrifugal pump is used as a sewage pump widely. However, single-blade centrifugal pump impeller is acted on a big radial thrust during the pump operation because the impeller is an asymmetry geometrically. Therefore when the reliability of the pump is secured, it is necessary to grasp a radial thrust quantitatively and elucidate the behavior and outbreak mechanism. This study investigated the radial thrust acting on single-blade centrifugal impeller by an experiment and CFD analysis. As a result, the behavior of the radial thrust with the flow rate change was clarified. Furthemore, the radial thrust was divided to an unsteady component, a momentum component and a pressure component by applying unsteady conservation of momentum to this impeller. The grand total of these components accorded with the radial thrust that calculated by direct CFD analysis well. And the behavior of each divided component was shown. In addition, the effect of those components that gave to the radial thrust was clarified. (Keyword) turbomachinery / centrifugal pump / Single Blade / Radial Thrust / CFD (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206296798720 ● Summary page in Scopus @ Elsevier: 2-s2.0-73349131395 (CiNii: 1390001206296798720, Elsevier: Scopus)
59.	Yasuyuki Nishi and Junichiro Fukutomi : A Study of Performance and Internal Flow in a New Type of Sewage Pump, International Journal of Fluid Machinery and Systems, Vol.2, No.3, 239-247, 2009. (Link to Publication Site) ● Publication site (DOI): 10.5293/IJFMS.2009.2.3.239 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.5293/IJFMS.2009.2.3.239 (DOI: 10.5293/IJFMS.2009.2.3.239)
60.	西泰行, 藤原亮太 and Junichiro Fukutomi : 一枚羽根遠心羽根車の設計法に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.75, No.754, 1320-1328, 2009. (Summary) The sewage pump are demanded a high pump efficiency and a performance in passing foreign bodies. Therefore, the impeller used by these usages demands the large passing particle size (minimum particle size in the pump). However, because conventional design method of pump impeller calculates impeller exit width small, it is difficult to apply to single-blade centrifugal pump impeller which is used as a sewage pump. This paper proposes design method for single-blade centrifugal pump impeller. As a result, the head curve of the impeller by this design method satisfied a design point, and pump efficiency was over 62% more than conventional single-blade centrifugal pump impeller. Having compared design values and CFD analysis values, the suction velocity ratio of the design parameter accorded well, but the relative velocity ratio did not agree by the influence of the backflow of the impeller entrance. (Keyword) turbomachinery / Centrifugal Impeller / Single Blade / Design Method / CFD (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681237631744 ● Summary page in Scopus @ Elsevier: 2-s2.0-70349442536 (CiNii: 1390282681237631744, Elsevier: Scopus)
61.	Masanori Kiyota, Junichiro Fukutomi, Takeshi Nishi and Norio Terashima : Internal flow of a new type drying equipment, Nippon Shokuhin Kogaku Kaishi, Vol.10, No.1, 17-22, 2009. (Summary) The flow conditions of a new dryer for by-product of tofu proposed in the previous paper are examined. Its drying capacity is relatively small and to know the internal flow is necessary to develop larger capacity machines. Firstly, the interior of drying drum and classifying chamber were observed using high speed video. Wet materials returning from upper chamber are colliding with the materials and ceramic balls moving along the surface of the drying drum entrained in the hot air and dispersed. In the classifying chamber counterclockwise circulating flows are formed. Then numerical simulation was carried out for the flow of this dryer using FLUENT. Necessary nodes were about 800,000 to describe the whole machine. Obtained path lines are almost consistent with the video images showing the validity of the simulation method. To get the suitable geometry for 5 times larger machine, flow conditions were compared for three types of geometry of the entrance to classifying chamber and the best geometry was determined. The chamber height was then determined so that the velocities at the ceiling are below 3 m/s to avoid adhesion of the wet materials to the wall. Based on the obtained results 300 kg/h machine was build and it was successfully operated. (Keyword) Waste Disposal / Drying Drum / Ceramics Ball / internal flow / numerical simulation (Link to Publication Site) ● Publication site (DOI): 10.11301/jsfe.10.17 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205743561344 ● Summary page in Scopus @ Elsevier: 2-s2.0-68149136651 (DOI: 10.11301/jsfe.10.17, CiNii: 1390001205743561344, Elsevier: Scopus)
62.	Masanori Kiyota, Junichiro Fukutomi, Takeshi Nishi and Norio Terashima : Drying performance of a new type drying equipment, Nippon Shokuhin Kogaku Kaishi, Vol.9, No.4, 303-309, 2008. (Keyword) Wastes disposal / Dryer / Pneumatic conveyor / Dispersion / Ceramic ball (Link to Publication Site) ● Publication site (DOI): 10.11301/jsfe2000.9.303 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1050845763636664960 ● Search Scopus @ Elsevier (DOI): 10.11301/jsfe2000.9.303 (DOI: 10.11301/jsfe2000.9.303, CiNii: 1050845763636664960)
63.	西泰行, 松尾信明 and Junichiro Fukutomi : 汚水用新型ポンプの損失解析, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.74, No.744, 1785-1792, 2008. (Summary) Authors have been proposing a new type of sewage pump impeller designed to further improve pump efficiency and performance in passing foreign bodies. And pump performance, internal flow and behavior of the radial thrust have been clarified by LDV measurement and CFD analysis. However, hydraulic design of pumps is integral calculus operation whereas flow analysis is differential calculus operation. Therefore, even if complicated internal flow was clarified by CFD analysis, it is difficult to improve pump performance if the cause and outbreak mechanism of each hydraulic loss were not clarified. This paper proposes loss analytical method of this pump equipped with a single blade impeller. As a result of having compared experimental values and CFD analysis values with loss analysis values about the head curve, they almost matched in a wide range of flow rates. When the flow flows backward to the impeller from the volute casing, the hydraulic loss becomes small in an appearance, but the power loss becomes excessive and the pump efficiency decreases. (Keyword) turbomachinery / Sewage Pump / Performance / internal flow / CFD / Loss Analysis (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.74.1785 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009408592075136 ● Summary page in Scopus @ Elsevier: 2-s2.0-55349141819 (DOI: 10.1299/kikaib.74.1785, CiNii: 1520009408592075136, Elsevier: Scopus)
64.	Toru Shigemitsu, Masanori Kawada, Shintarou Sakai and Junichiro Fukutomi : The Study on The Flow Phenomena of Unvulcanized Rubber in Process of Filling, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.74, No.744, 1741-1747, 2008. (Summary) Rubber products, e.g. oil seal, are produced by vulcanization molding and the vulcanization molding of rubber product is performed by past experience, trial and error. In order to reduce surplus rubber and defective product, numerical analysis of flow phenomena of unvulcanized rubber was performed using FIDAP. The analysis was conducted taken the characteristic of unvulcanized rubber obtained by experiment, without considering the effect of the heat. The results showed that the filling state of numerical results represented good agreement with the experimental results. And it was clarified from the numerical results that high shear stress acted during unvulcanized rubber fill up to a narrow channel such as side surface of metal insert. In this paper, the flow phenomena under the condition of vulcanization molding are shown and the optimum flow condition would be discussed with experimental and numerical results. (Keyword) 非ニュートン流体 (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.74.1741 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853834130539008 ● Summary page in Scopus @ Elsevier: 2-s2.0-55349088271 (DOI: 10.1299/kikaib.74.1741, CiNii: 1520853834130539008, Elsevier: Scopus)
65.	西泰行, 松尾信明 and Junichiro Fukutomi : 汚水用新型ポンプの内部流れに関する研究(第2報，羽根負荷とボリュートケーシングの影響), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.74, No.743, 1496-1504, 2008. (Summary) Sewage pumps are designed with a wide flow channel by, for example, sacrificing some efficiency and reducing the number of blades, in order to prevent plugging with foreign bodies. Authors have been proposing a new type of sewage pump impeller designed to further improve pump efficiency and performance in passing foreign bodies. This sewage pump impeller has a structure in which the suction flow channel of closed type non-clog pump is wound in a helical spiral. The focus of this research was to investigate internal flow in this single blade sewage pump impeller by LDV measurement and CFD. As a result of having examined influene of impeller blade loading and volute casing, it clearly indicated the following facts. As well as influence of impeller blade middle loading and influence of the secondary flow, by increase of slip by influence of volute casing, static pressure and total pressure suddenly decrease together towards the end from impeller blade middle neighborhood. (Keyword) turbomachinery / Sewage Pump / internal flow / Impeller Blade Loading / LDV / CFD (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.74.1496 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009407347616512 ● Summary page in Scopus @ Elsevier: 2-s2.0-53149092891 (DOI: 10.1299/kikaib.74.1496, CiNii: 1520009407347616512, Elsevier: Scopus)
66.	Toru Shigemitsu, Junichiro Fukutomi and Yuichi Takeyama : Study on Performance Improvement of Cross-Flow Wind Turbine with Symmetrical Casing, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.74, No.743, 1505-1511, 2008. (Summary) Cross-flow wind turbine has a characteristic of high torque coefficient at low tip speed ratio. Therefore, it is good for the self-starting. Furthermore, it is low noise and superior to stability so that it attracts attentions as the city type small-sized wind turbine for urban district. But the maximum power coefficient is extremely low as 10% compared with other small-sized wind turbines. In order to improve the performance and the flow condition of cross-flow rotor, a symmetrical casing with a nozzle and a diffuser was proposed and experimental research with two kinds of symmetrical casings was conducted. The maximum power coefficient was obtained as C_<pmax>=0.17 for the casing 2, however as C_<pmax>=0.098 for the casing 1. In the present paper, power characteristics of cross-flow rotor and one of a symmetrical casing with a nozzle and a diffuser were investigated. Then the performance and internal flow field of a cross flow wind turbine with the symmetrical casing were clarified. After that, the effect of the symmetrical casing on performance would be discussed with these results. (Keyword) fluid machinery (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.74.1505 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853833817094656 ● Summary page in Scopus @ Elsevier: 2-s2.0-54749104247 (DOI: 10.1299/kikaib.74.1505, CiNii: 1520853833817094656, Elsevier: Scopus)
67.	西泰行, 松尾信明 and Junichiro Fukutomi : 汚水用新型ポンプの内部流れに関する研究(第1報，実験と数値解析との比較), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.74, No.742, 1386-1394, 2008. (Summary) Sewage pumps are designed with a wide flow channel by, for example, sacrificing some efficiency and reducing the number of blades, in order to prevent plugging with foreign bodies. Authors have been proposing a new type of sewage pump impeller designed to further improve pump efficiency and performance in passing foreign bodies. This sewage pump impeller has a structure in which the suction flow channel of closed type non-clog pump is wound in a helical spiral. The focus of this research was to investigate internal flow in this single blade sewage pump impeller. The results clearly indicated the following facts. As a result of having compared experimental results by LDV with calculated results by CFD, there is the difference about the radial component of absolute velocity, but agrees about pump performance and the tangential component comparatively well. A flow to circulate through in the impeller again is accepted by an experiment, and the sign is accepted by CFD in a specific impeller position. (Keyword) turbomachinery / Sewage Pump / Performance / internal flow / LDV / CFD (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.74.1386 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290882255773696 ● Summary page in Scopus @ Elsevier: 2-s2.0-50649104331 (DOI: 10.1299/kikaib.74.1386, CiNii: 1520290882255773696, Elsevier: Scopus)
68.	Toru Shigemitsu, Akinori Furukawa, Satoshi Watanabe, Kusuo Okuma and Junichiro Fukutomi : Internal Flow Measurement with LDV at Design Point of Contra-Rotating Axial Flow Pump, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.74, No.741, 1091-1097, 2008. (Summary) The adoption of the contra-rotating rotor has been proposed in response to a demand for the axial flow pump with higher specific speed. The internal flow field and blade rows interactions between the front and rear rotors should be considered in the design for higher performance and more stable operation, but has not been clarified yet. The flow field in contra-rotating axial flow pump was measured at various flow rates with the LDV and wall pressure measurements. In the present paper, the experimental and numerical results in the flow field between front and rear rotors are shown at the design flow rate and the flow behaviors are discussed, related on blade loading, blade tip leakage flow, wake and blade rows interaction. (Keyword) fluid machinery (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.74.1091 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009407519869568 ● Summary page in Scopus @ Elsevier: 2-s2.0-49149124425 (DOI: 10.1299/kikaib.74.1091, CiNii: 1520009407519869568, Elsevier: Scopus)
69.	Junichiro Fukutomi, Toru Shigemitsu and Tomohiro Yasunobu : Performance and Internal Flow of Sirocco Fan Using Contra-Rotating Rotors, Journal of Thermal Science, Vol.17, No.1, 35-41, 2008. (Keyword) Sirocco fan / Contra-rotating / Internal flow (Link to Publication Site) ● Publication site (DOI): 10.1007/s11630-008-0035-8 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s11630-008-0035-8 (DOI: 10.1007/s11630-008-0035-8)
70.	Masashi Ichimiya, Tomohiro Abe, Junichiro Fukutomi and Masaharu Kondo : Laminar-Turbulent Transition of a Boundary Layer Induced by a Single Roughness Element in an Inlet Region of a Circular Pipe Flow, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.73, No.725, 154-161, 2007. (Summary) 円管助走部境界層の乱流遷移に関する実験的研究である．単一突起を設置することによって下流に形成される定常な乱流領域の平均·変動速度を熱線風速計を用いて測定した．乱流領域の輪郭線は平面に展開するとくさび形である．くさびの頂点は突起位置に一致し，突起直後は直線であるが，次第に外側に向かって曲がる．これは平板上の乱流くさびと同様である．また広がり角も，同程度のレイノルズ数における平板上の乱流くさびと同程度である．乱流領域内の速度変動は中心線上で最大にはならず，周囲の層流領域との界面で最大になる．そこでの乱流領域内部の速度変動は乱流領域中心部よりも大きい． (Keyword) pipe flow / transition / boundary layer / turbulence / Single Roughness Element / Inlet Region (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.73.154 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290882220013952 ● Summary page in Scopus @ Elsevier: 2-s2.0-34248329613 (DOI: 10.1299/kikaib.73.154, CiNii: 1520290882220013952, Elsevier: Scopus)
71.	西泰行, 牧田晃一 and Junichiro Fukutomi : A Study on a New Type of Sewage Pump (Internal Flow and Radial Thrust), Turbomachinery, Vol.34, No.12, 729-738, 2006. (Summary) Sewage pumps are designed with a wide flow channel by, for example, sacrificing some efficiency and reducing the number of blades, in order to prevent plugging with foreign bodies. This paper proposes a new type of sewage pump impeller designed to further improve pump efficiency and performance in passing foreign bodies. This sewage pump impeller has a structure in which the suction flow channel of closed type non-clog pump is wound in a helical spiral. The focus of this research was to investigate pump performance, internal flow and radial thrust in this single blade sewage pump impeller. The results clearly indicated the following facts. The developed sewage pump impeller had high efficiency and exhibited high efficiency over a wide range of flow rates. Internal flow of this pump is very complicated, and a state of internal flow largely changes when flow rate changes, and force which is non-uniform in the circumferential direction is applied to the impeller. (Keyword) Sewage Pump / Performance / Pressure Distribution / internal flow / Radial Thrust (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj.34.729 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679520588928 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj.34.729 (DOI: 10.11458/tsj.34.729, CiNii: 1390282679520588928)
72.	西泰行, 牧田晃一 and Junichiro Fukutomi : A Study on a New Type of Sewage Pump, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.72, No.720, 1984-1992, 2006. (Summary) Sewage pumps are designed with a wide flow channel by, for example, sacrificing some efficiency and reducing the number of blades, in order to prevent plugging with foreign bodies. However, the behavior of foreign bodies which actually flow into a pump is extremely complex, and there are questions about whether the presumed foreign matter will actually pass through. This paper proposes a new type of sewage pump impeller designed to further improve pump efficiency and performance in passing foreign bodies. This sewage pump impeller has a structure in which the suction flow channel of closed type nonclog pump is wound in a helical spiral. The focus of this research was to investigate pump performance and radial thrust in this single blade sewage pump impeller. The results clearly indicated the following facts. The developed sewage pump impeller had high efficiency and exhibited high efficiency over a wide range of flow rates. When experimental and calculated values of radial thrust were compared at the best efficiency point flow rate, both the radial thrust size and direction almost matched. It is effective to reduce radial thrust fluctuating component by added mass. (Keyword) Hydraulic Machine / Sewage Pump / Performance / Pressure Distribution / Radial Thrust (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.72.1984 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290884398514432 ● Summary page in Scopus @ Elsevier: 2-s2.0-33750739239 (DOI: 10.1299/kikaib.72.1984, CiNii: 1520290884398514432, Elsevier: Scopus)
73.	Junichiro Fukutomi, akiyoshi Itabashi and Yasutoshi Senoo : Pressure Recovery in a Centrifugal Blower Casing, JSME International Journal, Series B: Fluids and Thermal Engineering, Vol.49, No.1, 125-130, 2006. (Summary) The rate of circulating flow passing through the tongue division and the pressure recovery in the casing are investigated in a centrifugal blower, which has no diffuser and large tongue clearance. At the design point, the ratio of circulating flow rate to total flow rate at the scroll end is about 45 percent, and the pressure recovery in the scroll is about 45 percent. As the remaining 55 percent of the pressure recovery in the casing is recovered in the section between the scroll end and exit duct, this section acts as a high-performance diffuser. It is concluded that the centrifugal force produced by the secondary flow and boundary layer suction are the main causes of the large pressure recovery. Moreover, it is found that the flow conditions from the scroll toward the exit duct are closely related to the low flow rate characteristics of the blower. (Keyword) Blower / Scroll Casing / Pressure Recovery / Circulating Flow / Boundary Layer Suction / turbomachinery (Link to Publication Site) ● Publication site (DOI): 10.1299/jsmeb.49.125 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679653804288 ● Summary page in Scopus @ Elsevier: 2-s2.0-33747706760 (DOI: 10.1299/jsmeb.49.125, CiNii: 1390282679653804288, Elsevier: Scopus)
74.	Junichiro Fukutomi and Rei Nakamura : Performance and Internal Flow of Cross-Flow Fan with Inlet Guide Vane, JSME International Journal, Series B: Fluids and Thermal Engineering, Vol.48, No.4, 763-769, 2005. (Summary) The effect of angle and length of the inlet guide vane on the performance of the crossflow fan was examined. By installing guide vane of one sheet in tongue division side in the suction region, the performance of the cross-flow fan becomes more high pressure and high efficient than the case without the guide vane. The prerotation of the inlet flow which is counter directional with the rotation of the rotor is generated by the guide vane. In the high flow region, the high pressure and high efficiency are obtained since the suction cascade work increases by the prerotation of the flow, and since the leading edge separation of the suction cascade is more avoided to high flow. Moreover, in the low flow region, it is possible to suppress the circulating flow in scroll side in the rotor suction inlet. Therefore, the high efficiency is obtained in the low power compared to the result without the guide vane. (Keyword) Cross-Flow Fan / Guide Vane / Prerotation / turbomachinery / fluid machinery / Cascade / computational fluid dynamics / internal flow (Link to Publication Site) ● Publication site (DOI): 10.1299/jsmeb.48.763 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204676680832 ● Summary page in Scopus @ Elsevier: 2-s2.0-33646771830 (DOI: 10.1299/jsmeb.48.763, CiNii: 1390001204676680832, Elsevier: Scopus)
75.	Hironori Horiguchi, Souhei Arai, Junichiro Fukutomi, Yoshiyuki Nakase and Yoshinobu Tsujimoto : Quasi-Three-Dimensional Analysis of Cavitation in an Inducer, Journal of Fluids Engineering - Transactions of the ASME, Vol.126, No.5, 709-715, 2004. (Summary) インデューサに生じるキャビテーションについて準三次元流れ解析を示した．流面における解析では交互翼キャビテーションをシミュレートできる特異点法を用い，平板型ヘリカルインデューサに対して解析を行い，キャビテーションに与える流れの三次元性の影響を明らかにした． (Link to Publication Site) ● Publication site (DOI): 10.1115/1.1789526 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1115/1.1789526 (DOI: 10.1115/1.1789526)
76.	竹内一喜, Junichiro Fukutomi, 小谷秀俊 and Hironori Horiguchi : Study on Performance and Internal Flow of Cross-Flow Wind Turbine, Turbomachinery, Vol.32, No.8, 473-481, 2004. (Summary) 都市型小形風車として注目されるクロスフロー風車について，その出力係数が10%と低い理由を明らかにし，円筒型ケーシングを用いてその出力係数を約2．0倍に増大させるとともに，その時のケーシング形状，内部流れについて明かにした． (Keyword) Wind Turbine / Cross Flow Rotor / Nozzle / Diffuser / Power Coefficient / Torque Coefficient (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679522693504 (CiNii: 1390282679522693504)
77.	Hironori Horiguchi, 新井宗平, Junichiro Fukutomi, Yoshiyuki Nakase and 辻本良信 : Quasi Three-dimensional Analysis of Cavitation in an Inducer, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.70, No.694, 1450-1458, 2004. (Summary) インデューサに生じるキャビテーションについて子午面上の流れに対する解析と回転対称な流面におけるキャビテーション発生下の流れの解析を組み合わせた準三次元解析法を提案し，キャビテーションに与える流れの三次元性の影響を明らかにした． (Keyword) Inducer / cavitation / numerical analysis / Steady / Singularity Method (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.70.1450 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009409454825984 ● Summary page in Scopus @ Elsevier: 2-s2.0-4344685392 (DOI: 10.1299/kikaib.70.1450, CiNii: 1520009409454825984, Elsevier: Scopus)
78.	Sunao Miyauchi, Hironori Horiguchi, Junichiro Fukutomi and Akihiro Takahashi : Optimization of Meridional Flow Channel Design of Pump Impeller, International Journal of Rotating Machinery, Vol.10, No.1, 115-119, 2004. (Summary) 羽根車子午面流路形状に勾配法を用いた最適化手法によって高効率羽根車を設計する新しい手法を提案したもので，ポンプ性能試験からその妥当性について示した．
79.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi, Seiichirou Kondou and Isao Tsutsui : Properties of a Turbulence Wedge Which Develops from a Single Roughness Element in a Flat Plate Laminar Boundary Layer, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.67, No.660, 1983-1989, 2001. (Summary) A turbulence wedge that develops downstream from a single roughness element placed in a laminar boundary layer on a flat plate was experimentally investigated. Streamwise vortices, development mechanisms of the wedge in the wall-normal and spanwise directions and development process of the turbulent quantities in the downstream were clarified. Many streamwise vortices appear within the wedge just behind the roughness. Further downstream, on the other hand, a pair of streamwise vortices are found on both interfaces between the wedge and the outer laminar region. The development mechanism of the wedge in the spanwise direction may be governed by the streamwise vortices ; the mechanism in the spanwise direction is different from that in the wall-normal direction. The fluctuating velocities and the Reynolds stresses just behind the roughness are larger than those of the developed turbulent boundary layer because of the many streamwise vortices. Further downstream, they more closely resemble those in the developed turbulent boundary layer. (Keyword) Turbulence / Boundary Layer / Transition / Single Roughness Element / Turbulence Wedge / Streamwise Vortex / Vorticity (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.67.1983 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681159542400 ● Summary page in Scopus @ Elsevier: 2-s2.0-34249333145 (DOI: 10.1299/kikaib.67.1983, CiNii: 1390282681159542400, Elsevier: Scopus)
80.	河瀬宗之, Junichiro Fukutomi and Yoshiyuki Nakase : 唐みファンの羽根車出口部近傍の流れに関する研究(第3報，羽根車近傍の静圧等値面と吸込口·吐出し口近傍のパーティクルによる一考察), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.67, No.658, 1376-1383, 2001. (Summary) 唐みファンの羽根車近傍の流れを数値シミュレーションと実験によって検討し，パーティクルによる追跡から吐出し口近傍の非定常な三次元流れを解明した．
81.	Satoshi Watanabe, Hironori Horiguchi, Akinori Furukawa, Junichiro Fukutomi and Yoshinobu Tsujimoto : Theoretical Analysis of Unsteady Fluid Forces Working on Inducer Blades Under Rotating Cavitation, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.67, No.655, 688-695, 2001. (Summary) Rotating cavitation is one of the flow instabilities associated with cavitation, which has been a severe problem for the development of turbopumps of liquid rocket engines because of causing the destructive super-synchronous shaft vibration. Recently, it is argued that rotating cavitation might also induce large repetitive stresses on blades in accordance with the unsteady pressure due to the significant change of cavitating regions. This paper describes about the theoretical prediction of unsteady blade forces working on the cavitating inducer under rotating cavitation. Unsteady pressure distributions and a lift force for a 2-dimensitional flat plate cascade under rotating cavitation are calculated by the linearized free streamline theory based on the unsteady closed cavity model and singularity method. (Keyword) cavitation / Unsteady Fluid Force / Blade / Rotating Cavitation / Cascade / Singularity Method (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.67.688 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572357933807616 ● Summary page in Scopus @ Elsevier: 2-s2.0-71249143562 (DOI: 10.1299/kikaib.67.688, CiNii: 1520572357933807616, Elsevier: Scopus)
82.	河瀬宗之, Junichiro Fukutomi and Yoshiyuki Nakase : Study on Internal Flow Near the Impeller Outlet of a Winnowing Fan (2nd Report, Discussion of a Impeller with Forward-Inclined Blades by Computational Fluid Dynamics), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.66, No.643, 671-678, 2000. (Summary) Because of strong 3-dimensional flow, it is difficult to produce a uniform flow or improve efficiency with winnowing fans. Through experiments with various types of impellers, it was found in an earlier study that a forward-inclined impeller could produce a uniform flow and improve efficiency. It was then reported in a subsequent study aimed at identifying the mechanism behind this, in which the relationship between velocity and static pressure in an impeller of small inclination angle was examined from the perspective of flow, that flow analysis was effective towards estimating inconsistent flow characteristics. Based on these findings, this project was designed to measure and analyze flow characteristics in a forward-inclined impeller. It was found that forward-inclined impellers have many regions of circulating flow and that the mainstream which moves to the outlet is narrow in effective area. As a result, velocity increases and discharge blow rapidly expands within a short distance. Therefore, good static pressure recovery is obtained. (Keyword) internal flow / Velocity Distribution / computational fluid dynamics / Blower / Flow Visualization / Unsteady Flow / Winnowing Fan (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681159628416 (CiNii: 1390282681159628416)
83.	河瀬宗之, Junichiro Fukutomi and Yoshiyuki Nakase : Study on Flow Near the Impeller Outlet of a Winnowing Fan (1st Report, The comparisons of the Flow between Experiments and CFD), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.66, No.643, 663-670, 2000. (Summary) The winnowing fan used for head feeding type combines draw in air along the axis from the inlet of both sides, and then radially discharges it into scroll. Therefore, the internal flow of this fan shows a strong three-dimensionality and the efficiency is low. In order to improve the efficiency and make the axial distribution of discharge flow uniform, the experimental and numerical investigations were carried out. Numerical results using CFD agree well with experimental ones for the mean flow. It is found that this numerical simulation method is useful for investigation of the effect of blade and casing configurations. Moreover unsteady flow conditions in the impeller though rotations are shown. For example, in the impeller, a vortex formed around the leading edge of the blade, grows connect with another one, reduce and disappear. (Keyword) internal flow / Velocity Distribution / computational fluid dynamics / Blower / Flow Visualization / Unsteady Flow / Winnowing Fan (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206182919552 (CiNii: 1390001206182919552)
84.	新濱仁, Junichiro Fukutomi, Yoshiyuki Nakase, 竹村公介 and 桑内忠昭 : Study on Reverse Running Pump Turbine (Radial Thrust and Runaway Speed Characteristics), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.66, No.641, 167-173, 2000. (Summary) Directly applying power generation technlogy for large-scale hydraulic turbines to a small hydraulic power generation system inevitably results in high costs. Consequently, technology specific to small hydraulic power generation must be developed. For example, a technology to use reverse running pump turbines, wherein mass-produced centrifugal pumps are operated in reverse rotation to obtain power, has been gaining popularity. The 1 st report gave the detailed test results on grasping the turbine characteristics and clarifying the internal flow. On this research, the radial thrust in the turbine mode and at the runaway speed condition was measured and this was evaluated comparing with the measuring data of distributions of circumferential velocity and static pressure at runner inlet and outlet, then the radial thrust tactor Kr was obtained. In addition to this, detailed experiments on the internal flow at the runaway speed condition were carried out to clarify the runaway speed characteristics, further the possibility of predicting the runaway speed characteristics was studied. (Keyword) pump / Turbine / turbomachinery / fluid machinery / internal flow / Radial Thrust / Runaway Speed (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1570291224616990720 (CiNii: 1570291224616990720)
85.	新濱仁, Junichiro Fukutomi, Yoshiyuki Nakase, 陳永涛, 桑内忠昭 and 宮内直 : ポンプ逆転水車に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.65, No.638, 3399-3405, 1999. (Summary) 小水力発電用水車として汎用の渦巻きポンプを逆転して運転するポンプ逆転水車について詳細な実験を行い，水車特性の把握と内部流れの解明，ポンプ特性から水車特性の予測，性能向上と適用範囲の拡大について検討した．
86.	Junichiro Fukutomi, 桑内忠昭, 板橋明吉, Yoshiyuki Nakase and 桑田尚宏 : 偏心した吸込ノズルをもつ多翼ファンの性能に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.65, No.634, 2023-2029, 1999. (Summary) 適切な弦節比の羽根車を用い，偏心した吸込ノズルをスクロール吐出し口から離れたスクロール巻始め側に取付けた場合には偏心なしの場合に比べ高い吐出し圧力が得られることを示すとともに，羽根車を一度通り抜けシュラウド隙間を通って羽根車入口に再循環する流れがこの圧力上昇に重要な役割を果たしていることを明らかにした． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.65.2023 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-40549138337 (DOI: 10.1299/kikaib.65.2023, Elsevier: Scopus)
87.	河瀬宗之, Junichiro Fukutomi, Yoshiyuki Nakase and 桑内忠昭 : 唐みファンの性能と内部流れに関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.65, No.632, 1263-1270, 1999. (Summary) 本論文は，軸方向長さが長いプレートファンを用いるコンバイン用の唐みファンにおいて，前向き羽根を用いることで高圧力，高効率が得られファンの小型化が可能であることを示すとともに，ファン出口の軸方向の速度分布の一様化が図れることを詳細な実験によって明らかにした． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.65.1263 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-77949676091 (DOI: 10.1299/kikaib.65.1263, Elsevier: Scopus)
88.	Vo Quang Minh, Junichiro Fukutomi, Yoshiyuki Nakase, 山本敬三 and 桑内忠昭 : 魚類移送用斜流ポンプ羽根車内の流れに関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.65, No.630, 612-620, 1999. (Summary) 本論文は，魚類移送用として開発した厚翼の二枚羽根斜流ポンプ羽根車内の流れを一次元レーザドップラー流速計を用いて三次元的に計測するとともに特異点法を用いた準三次元流れ解析を行い，両者の値がかなり良く一致することを示した． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.65.612 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-71249115766 (DOI: 10.1299/kikaib.65.612, Elsevier: Scopus)
89.	Junichiro Fukutomi, Yoshiyuki Nakase, Masashi Ichimiya and 篠原善哉 : 入口案内羽根による貫流ファンの高性能化に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.64, No.618, 442-446, 1998. (Summary) 高圧力係数を持つ貫流ファンを開発するため入口案内羽根が内部流れや，ファン性能に及ぼす影響を検討した．入口案内羽根によって流入流れを制御し，回転と逆方向の適切な予旋回を与えれば入口案内羽根がないものと比べて高い圧力係数が得られるとともに，高効率が得られることを示した．
90.	Masashi Ichimiya, Yoshiyuki Nakase, Ikuo Nakamura, Shintaro Yamashita, Junichiro Fukutomi and Mikio Yoshikawa : 順圧力こう配下の再層流化乱流境界層の特性, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.62, No.594, 483-490, 1996. (Summary) 乱流境界層の再層流化に関する実験的研究である．この再層流化は流れを縮小させて順圧力勾配を加えることによって行った．境界層内の平均·変動速度を熱線風速計とI型熱線プローブを用いて測定し，VITA法を用いてバースト構造について考察した．再層流化は乱流境界層の外層部分から発生するという従来の推測が支持される結果を得た．また再層流化するとバーストの発生は減少する．しかしこの周波数をテイラー微小時間で無次元化すると圧力勾配にかかわらず一定になる．再層流化は境界層内層のバーストを特別には弱めないが，イジェクション，スイープには変化を及ぼすことが混合距離を用いた考察から示された．
91.	Junichiro Fukutomi, 大島捷一, Yoshiyuki Nakase and 東條和仁 : 魚類移送用斜流ポンプの開発に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.61, No.591, 3908-3912, 1995. (Summary) 魚類移送用ポンプとして新しい考えのもとに開発した厚翼の2枚羽根斜流ポンプの性能特性や羽根車出口の流れを明らかにするとともに，2枚羽根の本羽根車の滑り係数を検討し設計資料を提案した． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.61.3908 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0029409118 (DOI: 10.1299/kikaib.61.3908, Elsevier: Scopus)
92.	板橋明吉, Junichiro Fukutomi, Yoshiyuki Nakase and 妹尾泰利 : 遠心送風機ケーシング内の流動状態に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.61, No.591, 3824-3829, 1995. (Summary) 上記48の論文で示された渦巻き室から吐出し管に向かう流れの圧力回復率が高い理由を流れの可視化によって調べた．舌部付近では，渦巻室内に吸い込まれる境界層があり，吐出し管へ向かう流れの境界層は薄くなっていることから，圧力回復率が高い要因は二次流れの遠心力とこの境界層の吸込みであることを示した． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.61.3824 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0029404864 (DOI: 10.1299/kikaib.61.3824, Elsevier: Scopus)
93.	板橋明吉, Junichiro Fukutomi, Yoshiyuki Nakase and 妹尾泰利 : 遠心送風機ケーシング内の流動状態に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.61, No.591, 3817-3823, 1995. (Summary) 羽根車外周にディフューザ部を持たず，舌部すきまの大きい遠心送風機ケーシング内の静圧測定を行い，ケーシング内の圧力回復は設計点では，渦巻室内で4割，残りの6割はそこから吐出し管へ向かう短い区間で起きており，この領域が性能の良いディフューザの役目を果たしていることを明らかにした． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.61.3817 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0029408306 (DOI: 10.1299/kikaib.61.3817, Elsevier: Scopus)
94.	Junichiro Fukutomi, Yoshiyuki Nakase, 伊澤昌一郎 and 玉置雅司 : 横流ファンの性能と内部流れに関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.61, No.590, 3699-3705, 1995. (Summary) 横流ファンのスクロール形状のうち，のど部幅とスクロール広がり形状がファン性能や内部流れに及ぼす影響を検討し，ノド部幅の大きさは羽根車内部に形成される渦の位置やファン性能に大きな影響を及ぼす重要なパラメータであること，渦の移動に伴って吐出し領域が狭められるとファンの圧力係数が増大することなどを明らかにした．
95.	Junichiro Fukutomi, Yoshiyuki Nakase, Masashi Ichimiya and Hiroto Ebisu : Unsteady Fluid Forces on a Blade in a Cross-Flow Turbine, JSME International Journal, Series B: Fluids and Thermal Engineering, Vol.38, No.3, 404-410, 1995. (Summary) The experimental and theoretical studies for determination on fluid forces on the blade in a cross-flow turbine are conducted. In the experiment, the tangential and radial forces are measured. In the theoretical study, they are calculated numerically using the unsteady momentum theory. The calculated results are compared with experimental data and good agreement between them is demonstrated. Furthermore, the maximum forces are found to occur immediately before the blade leaves the nozzle exit in both the experimental and theoretical results.
96.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi and Shinya Fujii : 順圧力こう配下の再層流化乱流境界層の特性, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.61, No.584, 1264-1271, 1995. (Summary) 乱流境界層の再層流化に関する実験的研究である．この再層流化は流れを縮小させて順圧力勾配を加えることによって行った．境界層内の平均·変動速度を熱線風速計とI型熱線プローブを用いて測定し，速度分布，乱流統計量について考察した．また変動速度の確率密度関数の形状の変化をK-Lダイバージェンスを用いて定量的に説明した．再層流化は乱流境界層の外層部分から発生するという従来の推測が支持される結果を得た．再層流化過程では，乱流領域の境界層内に占める割合が減少し，渦塊は大型化して高周波成分の寄与が減少する．
97.	Junichiro Fukutomi, Yoshiyuki Nakase, Masashi Ichimiya and 織野明弘 : 往復流におけるクロスフロー形波力水車の作動特性, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.61, No.582, 572-578, 1995. (Summary) 対称形クロスフロー水車を用いた波力水車について往復流中の水車性能に及ぼす羽根車の慣性モーメントの影響を実験的に明らかにした．さらに本水車の相似則を考慮した運動方程式を導き，定常特性を準定常的に用いたシミュレーションによって慣性モーメントが変化した場合にも往復流中の回転数，効率などの作動特性を評価できることを示した．
98.	Junichiro Fukutomi and Yoshiyuki Nakase : スモークワイヤ法による空気流の流速測定, Turbomachinery, Vol.22, No.10, 721-727, 1994. (Summary) スモークワイヤ法によって低速空気流の流速を測定する方法を提案し，発煙遅れ時間，白煙の浮上速度，発煙線の形成する後流や白煙の加速性等が流速測定精度に及ぼす影響について，吸込み風洞を使用し，種々の発煙条件のもとで主流速度を変化させて調べた． (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj1973.22.588 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.11458/tsj1973.22.588 (DOI: 10.11458/tsj1973.22.588)
99.	Junichiro Fukutomi and Yoshiyuki Nakase : クロスフロー水車の吸出し管に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.60, No.575, 2459-2465, 1994. (Summary) クロスフロー水車の吸出し管に関して，ランナ中心から放水面までの落差が比較的大きい場合と小さい場合について，吸出し管の好適形状および吸出し管内水位が水車性能に及ぼす影響について調べたものであり，特にランナが水没した運転状態における水車性能および内部流れについて検討した． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.60.2459 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0028463176 (DOI: 10.1299/kikaib.60.2459, Elsevier: Scopus)
100.	Junichiro Fukutomi, 島田嘉洋, Yoshiyuki Nakase and 安田国雄 : 多板式層流ファンの羽根車内の流れ解析, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.59, No.566, 3140-3145, 1993. (Summary) 多板式層流ファンの羽根車内の流れを子午面内の非粘性解析と平行平板間の粘性解析を組合わせて，準三次元的に解析する方法を示した．本解析法を適用することによって，多板式羽根車内の流れはシュラウド側円板間で小さくなり，羽根車出口の流れは軸方向に非一様な分布を示すことを明らかにした． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.59.3140 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0027681803 (DOI: 10.1299/kikaib.59.3140, Elsevier: Scopus)
101.	Junichiro Fukutomi, Yoshiyuki Nakase, Masashi Ichimiya and 矢野浩 : 波力水車の運転特性に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.59, No.563, 2221-2226, 1993. (Summary) 対称形クロスフロー水車を用いた波力水車について上下往復流中の水車性能に及ぼすケーシング形状の影響を調べるとともに，一方向流中の定常特性を準定常的に用いて本水車の動特性のシミュレーションを行い，回転数，効率などの作動特性を評価できることを示した．
102.	Junichiro Fukutomi, Yoshiyuki Nakase, Masashi Ichimiya and 戎弘人 : クロスフロー水車の羽根に働く流体力, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.59, No.561, 1640-1645, 1993. (Summary) クロスフロー水車の羽根に働く非定常な流体力をひずみゲージ，スリップリングを用いて実験的に求めるとともに運動量法則を用いて数値解析を行い，計算値は実験とかなり良く一致すること，接線方向力，半径方向力ともに羽根がノズル出口の噴流から脱出するノズル先端近傍で最大値を示すことを明らかにした．
103.	Junichiro Fukutomi, Yoshiyuki Nakase and 滝川三左男 : テーパ円柱および段付円柱の後流渦, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.59, No.559, 129-136, 1993. (Summary) 一様流中にあるテーパ円柱および段付円柱のスパン方向の三次元性が渦流出および後流に及ぼす影響を検討した．テーパ円柱において，スパン方向にセル構造がみられ，セルの境界には流出渦のY字形結合が見られること，段付き円柱では直径比0.64以上では流出渦にY字形結合が見られ，0.56以下では段位置で流出渦は切れていることを示した． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.59.684 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0027555520 (DOI: 10.1299/kikaib.59.684, Elsevier: Scopus)
104.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi, Katsumi Yamana and Masaaki Fukunaga : 平板上の突起より発達する乱流くさびの構造の研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.59, No.557, 129-136, 1993. (Summary) 層流境界層の乱流遷移に関する実験的研究である．この遷移は3次元突起列によって強制的に生じさせるものである．層流境界層内に単一の3次元突起が存在すると，その下流にくさび形の乱流領域(乱流くさび)が形成される．この乱流くさび領域の平均·変動速度を熱線風速計とI型熱線プローブを用いて測定し，くさびの輪郭線や広がり角度を明確な定義に基づいて示した．また平均量は突起直後では十分発達しておらず，下流に向かって徐々に発達することが明らかになった．
105.	Junichiro Fukutomi, Yoshiyuki Nakase and Masashi Ichimiya : 多板式層流ファンに関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.58, No.549, 1473-1478, 1992. (Summary) 低騒音であることが期待されるが，効率が低い多板式層流ファンの性能向上を目的としてスクロール広がり角の影響を検討した．本ファンは羽根車出口流れ角が極端に小さく，かつ流速が大きいため広がり角が1，2°の小さいスクロールを用いればスクロール流入時の減速損失が減少し，効率は増大するが，最高効率点が小流量側へ移動することを示した．
106.	Junichiro Fukutomi and Yoshiyuki Nakase : 波力発電用クロスフロー水車に関する研究, Turbomachinery, Vol.19, No.11, 721-727, 1991. (Summary) 波の往復流に対処できるように，羽根車の周りに二つの軸対称ノズルをもつ波力発電用のクロスフロー水車を考案し，その性能と内部流れを取り扱ったものである．この対称形クロスフロー水車が往復流中で自己整流作用を持つこと，羽根車内部に渦が形成されること，往復流の減速時に多くの出力を発生することなどを明らかにした． (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj1973.19.721 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.11458/tsj1973.19.721 (DOI: 10.11458/tsj1973.19.721)
107.	Junichiro Fukutomi, Yasutoshi Senoo and Yoshiyuki Nakase : A Numerical Method of Flow through a Cross-Flow Runner, JSME International Journal, Series, Vol.34, No.1, 44-51, 1991. (Summary) 本論文は，従来一次元流れとして扱われてきたクロスフロー水車の羽根車内の流れを二次元流れとして解析した．羽根車の相対流れにおける流線に沿う非定常流れを数値解析し，羽根車内を通り抜ける流れの位置が羽根車回転数とともに変化する様子を示すとともに，羽根車の周囲に沿う流れが周方向に一様でないことを明らかにした．
108.	Junichiro Fukutomi and Yoshiyuki Nakase : クロスフロー水車性能に及ぼす羽根車とノズルのすきまの影響, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.56, No.529, 2658-2664, 1990. (Summary) 本論文は，クロスフロー水車の羽根車とノズルとのすきまが，漏れ流量及び水車性能に及ぼす影響について調べたものである．羽根枚数が30枚以上の羽根車では，すきまの大きさはもれ損失だけでなくノズル出口および羽根車内の流動状態に影響を及ぼし，最高の水車効率が得られる最適すきまが存在することを明らかにした． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.56.2658 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0025491571 (DOI: 10.1299/kikaib.56.2658, Elsevier: Scopus)
109.	Junichiro Fukutomi, 鈴木茂行 and Yoshiyuki Nakase : クロスフロー水車発電機システムの動特性, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.55, No.517, 2781-2786, 1989. (Summary) 本論文は，クロスフロー水車―直流他励発電機システムのエネルギーの流れより基本方程式を求め，その定常特性の解析法を確立し，実測値と比較することにより，その特性がいかに変化するかを明らかにした．次に負荷トルク変動時の動特性を明らかにするために，各要素のトルク方程式を導出し，実測値と理論値を比較して，伝達関数が妥当であることを確かめた．
110.	Yoshiyuki Nakase, Junichiro Fukutomi and 松本耕治 : 風車の抵抗翼式制御に関する研究, Turbomachinery, Vol.15, No.10, 3-17, 1987. (Summary) 本論文は，風車の回転数の上昇に対して抵抗翼を開くことによって過大な動力を吸収する抵抗翼式空気ブレーキの設計基礎データを得る目的で，抵抗翼まわりの三次元流れを調べるとともに，吸収動力を見積もるための抵抗翼の抵抗係数の算出式を導いたものである． (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj1973.15.599 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.11458/tsj1973.15.599 (DOI: 10.11458/tsj1973.15.599)
111.	Yoshiyuki Nakase, Junichiro Fukutomi and 新村剛 : 管路内に組み込まれたクロスフロー水車に関する研究(流出側ケーシング形状による影響), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.53, No.487, 966-970, 1987. (Summary) 本論文は，工場余剰水，下水処理場排水などの配管路に水車を組込み，エネルギーの回収を目指したものであリ，水車性能の上からみた最適ケーシング形状について調べた． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.53.966 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0023314139 (DOI: 10.1299/kikaib.53.966, Elsevier: Scopus)
112.	Yoshiyuki Nakase, Junichiro Fukutomi and 福家靖司 : 潮汐発電用クロスフロー水車に関する研究(第2報往復流水車における流路断面積変化による影響), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.53, No.486, 500-504, 1987. (Summary) 本論文は，第1報に続き往復流に対応できる潮汐発電用水車の高効率化を目指したものであり，約60%にまで効率を上昇させるとともに流路断面積変化は広がり角8度程度が良い事を明らかにした． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.53.500 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0023293448 (DOI: 10.1299/kikaib.53.500, Elsevier: Scopus)
113.	Yoshiyuki Nakase, Junichiro Fukutomi and 飯田博貴 : 潮汐発電用クロスフロー水車に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.52, No.473, 367-371, 1986. (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.52.367 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0022436579 (DOI: 10.1299/kikaib.52.367, Elsevier: Scopus)
114.	Junichiro Fukutomi, Yoshiyuki Nakase, 山下弘之 and 蓮井伸二 : クロスフロー水車に関する研究(ノズル出口弁による流量·出力制御), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.52, No.473, 401-406, 1986. (Summary) 本論文は，クロスフロー水車の流量·出力制御法としてノズル出口弧に沿って周方向にスライドし，ノズル開度を調整する出口弁を有するノズルについて，従来のフラップ式ガイドベーンと比較検討を行い，この新しい出口弁付きノズルがガイドベーン付ノズルに比べ幅広い流量範囲にわたり高効率の水車性能が得られ，かつ流動状態が弁開度によらず滑らかであることを示した． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.52.401 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0022454203 (DOI: 10.1299/kikaib.52.401, Elsevier: Scopus)
115.	Junichiro Fukutomi, Yoshiyuki Nakase and 蓮井伸二 : クロスフロー水車に関する研究(羽根枚数および羽根出口角の影響), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.52, No.473, 407-412, 1986. (Summary) 本論文は，クロスフロー水車の性能に影響を及ぼす羽根車形状のうち，特に重要と思われる羽根枚数および羽根出口角について調べたものである．羽根枚数は30枚程度，羽根出口角はβ＝80∼90度が良いことを水車性能および内部の流動状態から示した．羽根枚数とすべり係数との関係についても述べている． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.52.407 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0022500422 (DOI: 10.1299/kikaib.52.407, Elsevier: Scopus)
116.	Yoshiyuki Nakase, Junichiro Fukutomi, 渡部孝 and 山本美夫 : ペルトン水車バケット内の流れ解析(第2報), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.51, No.471, 3680-3684, 1985. (Summary) 本論文は，第1報に続きバケット面上の流れの厚みを考え，この厚みに基づく圧力を考慮した運動方程式を導きルンゲ·クッタ法を用いてバケット内の流れの数値計算を行い，妥当性あるフローパターンを得た． (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.51.3680 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85004448493 (DOI: 10.1299/kikaib.51.3680, Elsevier: Scopus)
117.	Yoshiyuki Nakase, Junichiro Fukutomi, 渡部孝 and 山本美夫 : ペルトン水車バケット内の流れ解析(第1報), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.51, No.470, 3355-3359, 1985. (Summary) 本論文は，ペルトン水車バケット内の流れを理論的に知ることができるように，流体粒子について回転座標系に対しての運動方程式を導き，バケット形状や流入状態のデータを与え，コンピュータを使ってシュミレーション計算を行った．
118.	Junichiro Fukutomi, Yoshiyuki Nakase and Takashi Watanabe : A Numerical Method of Free Jet from a Cross-Flow Turbine Nozzle, Bulletin of JSME, Vol.28, No.241, 1436-1440, 1985. (Summary) 本論文は，任意曲面形状を持つにノズル内およびノズル出口流れを数値計算する方法を開発し，それらをクロスフロー水車のノズルからの噴流の計算に適用し，得られた結果が実験値と良く一致することを示した．またこの解析によってノズル形状がノズル出口流れに及ぼす影響について明らかにした．
119.	Junichiro Fukutomi, Yoshiyuki Nakase and 渡部孝 : クロスフロー水車のノズルからの噴流に関する研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.50, No.459, 2790-2794, 1984. (Summary) 本論文は，側壁が非対称で曲面形状を持つクロスフロー水車のノズルからの噴流についてシュワルツ·クリストッフェル変換を用い，ノズル内およびノズル出口流れを数値計算し，実験値と良く一致することを示すとともに，この解析によってノズル形状がノズル出口流れに及ぼす影響について明らかにした．
120.	Junichiro Fukutomi, Yoshiyuki Nakase and 渡部孝 : 多段型ジェットポンプによる高揚程輸送に関する研究, Turbomachinery, Vol.12, No.10, 16-21, 1984. (Summary) 本論文は，ジェットポンプのノズルより噴出する駆動流体と被駆動流体が混合した後，その混合流体の一部を回収して再び圧力水として用い，ノズルより噴出させる多段型ジェットポンプを開発し，これによる高揚程輸送が可能であることを示した．
121.	Junichiro Fukutomi, Yoshiyuki Nakase and 渡部孝 : 吸込みを有するディフューザの性能, Turbomachinery, Vol.11, No.12, 33-40, 1983. (Summary) 本論文は，ディフューザ入口部と拡大部との圧力差を利用してディフューザ壁面からその壁面に発達する境界層または逆流域を吸い込み，その流体をディフューザ入口部の主流に放出させる吸い込み装置を有する二次元及び円錐ディフューザについて実験を行い，吸込位置を剥離点直前に設置すればかなり圧力回復率が向上することを示した．

Academic Paper (Unrefereed Paper):

1.	Vo Quang Minh, Yoshiyuki Nakase and Junichiro Fukutomi : Analysis of the Flow through Dynamic and Stationary Cascades of Axial Pump by Singularity Method, Bulletin of Faculty of Engineering, The University of Tokushima, Vol.44, 47-55, 1999. (Summary) 特異点法を用いて軸流ポンプの動翼と静翼を通過する流れを数値解析する方法を提案するとともにこれを用いて，動静翼内の流動状態を検討した．また，内部流動状態に及ぼす流量および回転数の影響を示した．
2.	Junichiro Fukutomi, Akiyoshi Itabashi, Yasutoshi Senoo, Yoshiyuki Nakase and Tadaaki Kuwauchi : Pressure Recovery in a Centrifugal Blower Casing, Bulletin of Faculty of Engineering, The University of Tokushima, Vol.44, 57-63, 1999. (Summary) スクロール内の検査面に角運動量法則を適用して求めたスクロール巻終わりの流量に対する舌部すきまを通る再循環流量の比率，およびスクロール巻終わりから吐き出し口に向かう区間の圧力回復率の計算値は，吐き出し流量が変化した場合にも実験値と良い一致が得られることを示した．
3.	Junichiro Fukutomi, Yasutoshi Senoo and Yoshiyuki Nakase : An Analysis of Flow through a Cross-Flow Runner, Bulletin of Faculty of Engineering, The University of Tokushima, No.24, 1-13, 1987. (Summary) 本論文は，従来一次元流れとして扱われてきたクロスフロー水車の羽根車内の流れを二次元流れとして解析し，実際のクロスフロー水車の実験値と比較した．解析値と実験値は良い一致を示した．
4.	Yoshiyuki Nakase, 渡部孝, Junichiro Fukutomi and 末継俊雄 : クロスフロータービンに関する研究, Bulletin of Faculty of Engineering, The University of Tokushima, No.27, 87-94, 1982. (Summary) 本論文は，小水力水車として注目されているクロスフロー水車についてその基本特性を調べるとともに，ノズル開き角度やノズル幅などのノズル形状が水車特性に及ぼす影響について実験的に調べたものである．
5.	Yoshiyuki Nakase, 渡部孝, Junichiro Fukutomi and 西本光孝 : ペルトン水車バケット内の流れ解析, Bulletin of Faculty of Engineering, The University of Tokushima, No.27, 79-85, 1982. (Summary) 本論文は，ペルトン水車バケット内の流れを理論的に知ることができるように，一つの流体粒子について回転座標系に対しての運動方程式を導き，バケット形状データや流入状態のデータを与え，コンピュータを使ってシミュレーション計算を行った．
6.	Yoshiyuki Nakase, 渡部孝, Junichiro Fukutomi, 鞍懸直史 and 早馬弘 : ターボ機械羽根車内の流れ解析, Bulletin of Faculty of Engineering, The University of Tokushima, No.27, 69-77, 1982. (Summary) 本論文は，フランシス水車内の部分負荷から過負荷にわたる広範な流れを準三次元解析により求めた．子午面流れは差分法により，翼間流れは特異点法により計算し，それらの流れの間でデータをやり取りしながら逐次解法によりユニークな解を求め，実験値と比較的良く一致することを示した．
7.	Junichiro Fukutomi, Yoshiyuki Nakase, 渡部孝 and 武田淳一郎 : スモークワイヤ法による流速測定時に生ずる誤差について, Bulletin of Faculty of Engineering, The University of Tokushima, No.25, 13-19, 1980. (Summary) 本論文は，スモークワイヤ法による空気流の測定において発煙遅れ時間，白煙の浮上速度，発煙線の後流や白煙の加速度が測定精度に及ぼす影響を吸込風胴を使用し，種々の発煙条件のもとで主流速度を変化させ調べた．そしてそれぞれの影響を定量的に見積もるとともに実用的な補正式を提案した．
8.	Junichiro Fukutomi, Yoshiyuki Nakase, 渡部孝 and 加治照久 : 高炉排ガスエネルギー回収タービン内の流動状態およびダスト付着に関する研究, Bulletin of Faculty of Engineering, The University of Tokushima, No.23, 97-105, 1978. (Summary) 本論文は，高炉排ガス用という特殊なタービンについて，各部の流動状態を測定するとともにダストとして草木灰および石炭粉を使った付着実験を行い，ダスト付着と流動状態との関係を明らかにしたものである．
9.	Junichiro Fukutomi, Yoshiyuki Nakase, 渡部孝, 川端護宰 and 小川博司 : 吸い込みによる2次元ディフューザの性能改善に関する研究, Bulletin of Faculty of Engineering, The University of Tokushima, No.23, 89-95, 1978. (Summary) 本論文は，ディフューザ入口部と拡大部との圧力差を利用してディフューザ壁面からその壁面に発達する境界層または逆流域を吸い込み，その流体をディフューザ入口部の主流に放出させる圧力回復率向上装置を考案試作し，実験を行い，同じ広がり角で同じ面積比の二次元ディフューザの性能をかなり改善できることを示した．
10.	Yoshiyuki Nakase, 渡部孝, Junichiro Fukutomi and 浜芳泰 : ラジアルタービン内の流れ解析(チョーク流量の推定), Bulletin of Faculty of Engineering, The University of Tokushima, No.23, 81-88, 1978. (Summary) 本論文は，高炉排ガスエネルギー回収タービン内の流れを準三次元解析するためのプログラムを開発し，さらに流路に発達する境界層の計算を行い，ブロッケージがチョーク流量に及ぼす影響を考慮した．また，羽根車出口の境界層厚さに基づいて羽根車内の損失を見積もり，この値を用いて羽根車内の損失を基礎式の中で考慮できるようにした．
11.	Junichiro Fukutomi, Yoshiyuki Nakase, 渡部孝 and 藤井伸一 : 大気拡散モデル実験に関する研究, Bulletin of Faculty of Engineering, The University of Tokushima, No.21, 117-120, 1976. (Summary) 本論文は，乱流境界層中の山付近の拡散状態を知るとともに，山前方排ガスによる山後方濃度場を知ることを目的として，トレーサとして炭酸ガスを用いて実験し，山付近の濃度場を調べるとともに山後方の剥離渦内濃度の推定法について述べたものである．
12.	Yoshiyuki Nakase, 渡部孝, Junichiro Fukutomi and 平野春樹 : ガス圧式動力義肢の開発, Bulletin of Faculty of Engineering, The University of Tokushima, No.21, 111-116, 1976. (Summary) 本論文は，前報の試作第一号機を改良し，軽量化を達成するとともに多機能化を実現した義肢の開発について述べたものである．
13.	渡部孝, Yoshiyuki Nakase, Junichiro Fukutomi and 藤井伸一 : ガス圧式動力義手の開発, Bulletin of Faculty of Engineering, The University of Tokushima, No.20, 49-56, 1975. (Summary) 本論文は，動力源としてガス圧を利用した多機能を実現するための義手の機構の開発について述べたものである．
14.	渡部孝, Yoshiyuki Nakase and Junichiro Fukutomi : 大気拡散モデル実験に関する研究, Bulletin of Faculty of Engineering, The University of Tokushima, No.20, 41-47, 1975. (Summary) 本論文は，大気境界層中の山近傍の拡散現象を明らかにする目的で，拡散現象にとって重要な運動学的相似と乱流状態の相似を満足させた風胴モデル実験を行い，山近傍の流動状態及び山後方の乱流状態(乱れ強さ，レイノルズ応力，拡散係数等)について調べたものである．

Review, Commentary:

1.	Toru Shigemitsu and Junichiro Fukutomi : Research and Development of Contra-Rotating Small-Sized Axial Fan, Turbomachinery, Vol.40, No.11, 680-687, Nov. 2012. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572358876392064 (CiNii: 1520572358876392064)
2.	西泰行 and Junichiro Fukutomi : Sewage Pump Having High Pump Efficiency and High Passage Performance (2nd Report), Turbomachinery, Vol.37, No.1, 43-51, Jan. 2009. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290882824342656 (CiNii: 1520290882824342656)
3.	西泰行 and Junichiro Fukutomi : Sewage Pump Having High Pump Efficiency and High Passage Performance (1st Report), Turbomachinery, Vol.36, No.12, 721-728, Dec. 2008. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572358337851776 (CiNii: 1520572358337851776)
4.	河瀬宗之, Junichiro Fukutomi and Yoshiyuki Nakase : The Performance and Internal Flow of Winnowing Fans. (2nd Report)., Turbomachinery, Vol.29, No.10, 594-604, Oct. 2001. (Summary) 前報に続き，コンバインに使われている唐みファンについて性能向上のための設計法と，羽根車内部の三次元非定常流れを解析と実験から明かにした結果について解説した． (Link to Publication Site) ● Publication site (DOI): 10.11458/tsj1973.29.594 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679520658304 ● Search Scopus @ Elsevier (DOI): 10.11458/tsj1973.29.594 (DOI: 10.11458/tsj1973.29.594, CiNii: 1390282679520658304)
5.	河瀬宗之, Junichiro Fukutomi and Yoshiyuki Nakase : 唐みファンの性能と内部流れについて(第1報), Turbomachinery, Vol.29, No.6, 328-333, Jun. 2001. (Summary) これまでの唐み発達の歴史，経過と現在コンバインに搭載されている唐みファンの基礎データおよび最近の動向について解説した．
6.	Junichiro Fukutomi : Performance and Internal Flow of Small Hydro Power Turbines, Bulletin of Faculty of Engineering, The University of Tokushima, Vol.46, 31-40, Mar. 2001. (Summary) 自然の流体エネルギーの利用の観点から注目されるマイクロ水力発電用クロスフロー水車とポンプ逆転水車について，それらの内部流れと性能について解説するとともに高効率を達成するための設計法やラジアルスラストと無拘束速度特性について示した． (Keyword) Cross-flow turbine / Reverse running pump turbine / Water turbine / Renewable energy / turbomachinery / internal flow / Performance (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009408863814272 (CiNii: 1520009408863814272)
7.	新濱仁, Junichiro Fukutomi, Yoshiyuki Nakase and 宮内直 : ポンプ逆転水車について(その2)(ラジアルスラストと無拘束速度特性), Turbomachinery, Vol.29, No.1, 47-54, Jan. 2001. (Summary) ポンプ逆転水車のラジアルスラストと無拘束速度特性について検討し，水車運転時のラジアルスラスト係数について示した．また落差一定の場合の無拘束状態と最高効率点における回転数比，流量比を定めるとともに無拘束速度状態におけるランナ入口，出口の流れを解説した． (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204543800832 (CiNii: 1390001204543800832)
8.	新濱仁, Junichiro Fukutomi, Yoshiyuki Nakase and 宮内直 : The Reverse Running Pump Turbine (No.1), Turbomachinery, Vol.28, No.8, 455-462, Aug. 2000. (Summary) 小水力発電用水車として汎用の渦巻きポンプを逆転して運転するポンプ逆転水車について，水車特性の把握と内部流れの解明，ポンプ特性から水車特性の予測，性能向上と適用範囲の拡大について解説した． (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290885286938880 (CiNii: 1520290885286938880)
9.	Junichiro Fukutomi : Characteristics and Internal Flow of Cross-Flow Tubine for Micro Hydro Power, Turbomachinery, Vol.28, No.3, 156-163, Mar. 2000. (Summary) 自然の流体エネルギーの利用の観点から重要視されるマイクロ水力発電用クロスフロー水車の内部流れと性能について解説するとともに高効率を達成するためのノズル及び羽根車の設計法について示した． (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290885263754880 (CiNii: 1520290885263754880)
10.	Junichiro Fukutomi and Yoshiyuki Nakase : 機械工学年鑑(1995年)流体工学(5．流体機械要素), Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.62, No.600, 2911-2912, Aug. 1996. (Summary) 流体機械要素の定常流，非定常流，空力弾性，空力騒音について解説した．
11.	Yoshiyuki Nakase and Junichiro Fukutomi : 機械工学年鑑(1988年)流体工学, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.55, No.516, 2080-2081, Aug. 1989. (Summary) キャビテーションおよび流体機械要素の定常流，非定常流，空力弾性，空力騒音について解説した.
12.	渡部孝, 川人明美, Junichiro Fukutomi and Yoshiyuki Nakase : 瞬間発煙法による流れの可視化, Turbomachinery, Vol.3, No.6, 20-24, Apr. 1978. (Summary) 瞬間発煙法(スモークワイヤ法)の原理，装置および方法について解説するとともに発煙遅れ時間，煙の浮力の影響について考察した．さらに本方法を用いてターボ機械の内部流れを可視化した実験例について紹介した．

Proceeding of International Conference:

1.	Toru Shigemitsu, Takeshima Yasutoshi, Ogawa Yuya and Junichiro Fukutomi : Internal Flow of Contra-Rotating Small Hydroturbine at Off-Design Flow Rates, Proceedings of the 28th IAHR Symposium on Hydraulic Machinery and Systems, Vol.49, No.10, Grenoble, France, Jul. 2016. (Tokushima University Institutional Repository) ● Metadata: 115849 (Link to Publication Site) ● Publication site (DOI): 10.1088/1755-1315/49/10/102008 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85012177422 (Tokushima University Institutional Repository: 115849, DOI: 10.1088/1755-1315/49/10/102008, Elsevier: Scopus)
2.	Toru Shigemitsu, Matsubara Takumi, Sakaguchi Masahiro and Junichiro Fukutomi : Influence of Back Shroud Shape on Performance and Internal Flow of Fluid Food Pump, Proceedings of International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 2016, Honolulu, Apr. 2016. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85083946687 (Elsevier: Scopus)
3.	Toru Shigemitsu, Fukuda Hiroaki and Junichiro Fukutomi : Wake and Potential Interference of Contra-Rotating Small-Sized Axial Fan at Design Flow Rate, Proceedings of International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 2016, Honolulu, Apr. 2016. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85083946228 (Elsevier: Scopus)
4.	Junichiro Fukutomi and Toru Shigemitsu : Effects of Eccentric Vortex on Performance and Internal Flow of a Cross-Flow Fan, Proceedings of the 13th Asian International Conference on Fluid Machinery, Tokyo, Japan, Sep. 2015.
5.	Toru Shigemitsu, Sakaguchi Masahiro, Ogawa Yudai and Junichiro Fukutomi : Study on High Performance Design of Mini Centrifugal Pump, Proceedings of the 13th Asian International Conference on Fluid Machinery, Tokyo, Japan, Sep. 2015.
6.	Toru Shigemitsu, Fukuda Hiroaki and Junichiro Fukutomi : PIV Measurement of Inlet and Outlet Flow of Contra-Rotating Small-Sized Cooling Fan, Proceedings of the 13th Asian International Conference on Fluid Machinery, Tokyo, Japan, Sep. 2015.
7.	Toru Shigemitsu, Shinohara Hirotaka, Matsubara Takumi and Junichiro Fukutomi : Internal Flow Condition of Fluid Food Pump Using Semi-Open Impeller, Proceedings of ASME-JSME-KSME Joint Fluids Engineering Conference 2015, Seoul, Korea, Jul. 2015.
8.	Toru Shigemitsu, Takeshima Yasutoshi, Tanaka Chihiro and Junichiro Fukutomi : Influence of Spoke Geometry on Performance and Internal Flow of Contra-Rotating Small-Sized Hydroturbine, Proceedings of ASME-JSME-KSME Joint Fluids Engineering Conference 2015, Seoul, Korea, Jul. 2015.
9.	Junichiro Fukutomi, Toru Shigemitsu and Nakamura Rei : Pre-Whirl Flow and Its Control in a Cross Flow Fan, Proceedings of the 12th International Symposium on Experimental Computational Aerothermodynamics of Internal Flows, Lerici, Italy, Jul. 2015.
10.	Toru Shigemitsu, Ogawa Yudai and Junichiro Fukutomi : Experimental Measurement of Outlet Flow of Mini Centrifugal Pump with Splitter Blades, Proceedings of 5th Asian Joint Workshop on Thermophysics and Fluid Science, Nagasaki, Japan, Sep. 2014.
11.	Tanaka Kensuke, Toru Shigemitsu and Junichiro Fukutomi : Wake and Potential Interference between Front and Rear Rotors of Contra-Rotating Small-Sized Axial Fan, Proceedings of 5th Asian Joint Workshop on Thermophysics and Fluid Science, Nagasaki, Japan, Sep. 2014.
12.	Toru Shigemitsu, Junichiro Fukutomi and Tanaka Chihiro : Challenge to Use Small Hydro Power by Contra-Rotating Small Hydro-Turbine, Proceedings of World Renewable Energy Congress 2014, London, UK, Aug. 2014.
13.	Toru Shigemitsu, Tanaka Chihiro and Junichiro Fukutomi : Performance of Contra-Rotating Small Hydro Turbine when Flow Rate Is Changing, Proceedings of Grand Renewable Energy 2014, Tokyo, Japan, Jul. 2014.
14.	Toru Shigemitsu, Junichiro Fukutomi and Chihiro Tanaka : Unsteady Flow Condition of Contra-Rotating Small-Sized Hydro Turbine, Proceedings of the 12th Asian International Conference on Fluid Machinery, Yogyakarta, Indonesia, Sep. 2013.
15.	Toru Shigemitsu, Junichiro Fukutomi, Satoshi Kubo and Tatsuya Ishioka : Unsteady Flow Condition of Centrifugal Pump for Low Viscous Fluid Food, Proceedings of the 12th Asian International Conference on Fluid Machinery, Yogyakarta, Indonesia, Sep. 2013.
16.	Toru Shigemitsu, Junichiro Fukutomi and Tanaka Chihiro : Performance and Internal Flow of Contra-Rotating Small Hydro Turbine, Proceedings of the ASME Fluids Engineering Division Summer Meeting, Incline village, Nevada, USA, Jul. 2013.
17.	Toru Shigemitsu, Junichiro Fukutomi and Agawa Takuya : Performance Characteristics and Flow Conditions of High Pressure and Large Flow Rate Cooling Fan, Proceedings of the ASME Fluids Engineering Division Summer Meeting, Incline village, Nevada, USA, Jul. 2013.
18.	Toru Shigemitsu, Junichiro Fukutomi, Wada Takashi and Shinohara Hirotaka : Performance Analysis of Mini Centrifugal Pump with Splitter Blades, Proceedings of the 11th International Symposium on Experimental Computational Aerothermodynamics of Internal Flows, Shenzhen, China, May 2013.
19.	Shimizu Hiroki, Toru Shigemitsu and Junichiro Fukutomi : Effect of Rotational Speed Control on Internal Flow of Contra-Rotating Small-Sized Axial Fan, Proceedings of 5th International Symposium on Fluid Machinery and Fluids Engineering, Jeju, Korea, Oct. 2012.
20.	Toru Shigemitsu, Junichiro Fukutomi and Agawa Takuya : Internal Flow Condition of High Power Contra-Rotating Small-Sized Axial Fan, Proceedings of 5th International Symposium on Fluid Machinery and Fluids Engineering, Jeju, Korea, Oct. 2012.
21.	Sonohata Ryosuke, Junichiro Fukutomi and Toru Shigemitsu : Study on Contra-Rotating Small-Sized Axial Flow Hydro Turbine, Proceedings of 4th Asian Joint Workshop on Thermophysics and Fluid Science, Busan, Korea, Oct. 2012.
22.	Toru Shigemitsu, Junichiro Fukutomi, Kaji Kensuke and Wada Takashi : Unsteady Internal Flow Conditions of Mini Centrifugal Pump with Splitter Blades, Proceedings of 4th Asian Joint Workshop on Thermophysics and Fluid Science, Busan, Korea, Oct. 2012.
23.	Kubo Satoshi, Junichiro Fukutomi, Toru Shigemitsu and Ishioka Tatsuya : The Influence of Tip clearance on Performance and Internal Flow Condition of Fluid Food Pump Using Low Viscous Fluid, Proceedings of the 26th IAHR Symposium on Hydraulic Machinery and Systems, Beijing, China, Aug. 2012.
24.	Toru Shigemitsu, Junichiro Fukutomi, Kaji Kensuke and Wada Takashi : Performance and Internal Flow Condition of Mini Centrifugal Pump with Splitter Blades, Proceedings of the 26th IAHR Symposium on Hydraulic Machinery and Systems, Beijing, China, Aug. 2012.
25.	Yasuyuki Nishi, Junichiro Fukutomi and Ryota Fujiwara : Effect of Blade Outlet Angle on Radial Thrust of Single-Blade Centrifugal Pump, Proceedings of the 26th IAHR on Hydraulic Machinery and Systems, Beijing, China, Aug. 2012.
26.	Satoshi Kubo, Junichiro Fukutomi and Toru Shigemitsu : Study on Performance and Internal Flow of Fluid Food Pump, Proceedings of the 8th JSME-KSME Thermal and Fluids Engineering Conference, Incheon, Korea, Mar. 2012.
27.	Kouhei Tanaka, Junichiro Fukutomi and Tsukamoto Hiroshi : Development of a Bio-Mechanical Circulation Load Tester for Evaluating Blood Pump Performance, Proceedings of the 8th JSME-KSME Thermal and Fluids Engineering Conference, Incheon, Korea, Mar. 2012.
28.	Toru Shigemitsu, Junichiro Fukutomi and Hiroki Shimizu : Influence of Blade Row Distance on Performance and Flow Condition of Contra-Rotating Small-Sized Axial Fan, Proceedings of the 8th JSME-KSME Thermal and Fluids Engineering Conference, Incheon, Korea, Mar. 2012.
29.	Junichiro Fukutomi, Toru Shigemitsu and Masaaki Toyohara : Performance and Flow Condition of Cross-flow Wind Turbine with a Symmetrical Casing, Proceedings of ASME-JSME-KSME Joint Fluids Engineering Conference 2011, Hamamatsu, Japan, Jul. 2011.
30.	Toru Shigemitsu, Junichiro Fukutomi, Yuki Okabe and Kazuhiro Iuchi : Internal Flow Conditions of Contra-Rotating Small-Sized Axial Fan, Proceedings of ASME-JSME-KSME Joint Fluids Engineering Conference 2011, Hamamatsu, Japan, Jul. 2011.
31.	Toru Shigemitsu, Junichiro Fukutomi and Kensuke Kaji : Influence of Blade Outlet Angle and Blade Thickness on Performance and Internal Flow of Mini Centrifugal Pump, Proceedings of ASME-JSME-KSME Joint Fluids Engineering Conference 2011, Hamamatsu, Japan, Jul. 2011.
32.	Toru Shigemitsu, Junichiro Fukutomi, Yuki Okabe and Kazuhiro Iuchi : Unsteady Flow Condition of Contra-rotating Small-sized Axial Fan, Proceedings of the 10th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows, Brussels, Belgium, Jul. 2011.
33.	Yasuyuki Nishi, Junichiro Fukutomi and Ryota Fujiwara : Radial Thrust of Single-Blade Centrifugal Pump, Proceedings of ASME-JSME-KSME Joint Fluids Engineering Conference 2011, Hamamatsu, Japan, Jul. 2011.
34.	Toru Shigemitsu, Junichiro Fukutomi, Ryoichi Nasada and Kensuke Kaji : The Effect of Blade Outlet Angle on Performance and Internal Flow Condition of Mini Turbo-Pump, Proceedings of 3rd Asian Joint Workshop on Thermophysics and Fluid Science, Matsue, Japan, Sep. 2010.
35.	Toru Shigemitsu, Junichiro Fukutomi, Yuki Okabe and Kazuhiro Iuchi : Performance and Flow Conditions of Contra-Rotating Small-sized Axial Fan, Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International Conference on Nanochannels, Microchannels, and Minichannels, Montreal, Canada, Aug. 2010.
36.	Toru Shigemitsu, Junichiro Fukutomi and Ryoichi Nasada : Study on Performance and Internal Flow Condition of Mini Turbo-Pump, Proceedings of the 10th Asian International Conference on Fluid Machinery, Kuala Lumpur Malaysia, Oct. 2009.
37.	Toru Shigemitsu, Junichiro Fukutomi, Tadahiro Yano and Yuki Okabe : The Performance and The Similarity Law of Small-Sized Axial Fan and The Possibility of Adoption of Contra-Rotating Rotors, Proceedings of the 9th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows, Gyeongju, Korea, Sep. 2009.
38.	Takashi Sumitomo, Junichiro Fukutomi, Toru Shigemitsu, Naoki Ishida and Yoshio Yoshimura : Study of Internal Flow and Emulsification Process in a Homogenizer, Proceedings of the ASME 2009 Fluids Engineering Division Summer Conference, Vail, Colorado, USA, Aug. 2009.
39.	Shintarou Sakai, Toru Shigemitsu and Junichiro Fukutomi : The Flow Phenomena and The Non-uniform Filling of The Unvulcanized Rubber in Process of Filling, Proceedings of the ASME 2009 Fluids Engineering Division Summer Conference, Vail, Colorado, USA, Aug. 2009.
40.	Junichiro Fukutomi, Toru Shigemitsu and Hiroki Daito : Study on Performance and Flow Condition of Cross-flow Wind Turbine with a Symmetrical Casing, Proceedings of the ASME 2009 Fluids Engineering Division Summer Conference, Vail, Colorado, USA, Aug. 2009.
41.	Toru Shigemitsu, Sakai Shintarou, Kawada Masanori, Matsuoka Tsukasa and Junichiro Fukutomi : The Study on The Flow Phenomena of Unvulcanized Rubber in Process of Filling, Proceedings of the 7th JSME-KSME Thermal and Fluids Engineering Conference, Hokkaido , Japan, Oct. 2008.
42.	Toru Shigemitsu, Junichiro Fukutomi and Shirai Yutarou : The Effect of Casing Shape on Performance of Sirocco Fan Using Contra-Rotating Rotors, Proceedings of the ASME Fluids Engineering Division Summer Conference, Jacksonville, Florida, USA, Aug. 2008.
43.	Junichiro Fukutomi, Toru Shigemitsu and Yuichi Takeyama : Study on Performance Improvement of Cross-Flow Wind Turbine with Symmetrical Casing, Proceedings of the 9th Asian International Conference on Fluid Machinery, Jeju, Korea, Oct. 2007.
44.	Norio Kasai, Junichiro Fukutomi and Sunao Miyauchi : Optimization Design of Pump Impeller, Proceedings of the 9th Asian International Conference on Fluid Machinery, Jeju, Korea, Oct. 2007.
45.	Toru Shigemitsu, Junichiro Fukutomi and Tomohiro Yasunobu : Study of High-Pressure Sirocco Fan Using Double Reversal Rotors, Proceedings of 2005 ASME Fluids Engineering Division Summer Meeting, San Diego, California, USA, Aug. 2007.
46.	Toru Shigemitsu, Akinori Furukawa, Satoshi Watanabe, Kusuo Okuma and Junichiro Fukutomi : Experimental Analysis of Internal Flow of Contra-Rotating Axial Flow Pump, Proceedings of the 8th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows, Lyon, France, Jul. 2007.
47.	Sunao Miyauchi and Junichiro Fukutomi : Optimization of Meridional Shape Design of Pump Impeller, Proceedings of the 23rd IAHR Symposium on Hydraulic Machinery and Systems, Yokohama, Oct. 2006.
48.	Yasuyuki Nishi, Kouichi Makita and Junichiro Fukutomi : A Study on a New Type Sewage Pump, Proceedings of the 8th Asian International Fluid Machinery Conference, 826-838, Yichang, China, Oct. 2005.
49.	Hironori Horiguchi, Souhei Arai, Junichiro Fukutomi, Yoshiyuki Nakase and Yoshinobu Tsujimoto : Quasi Three-Dimensional Analysis of Cavitation in an Inducer, Proceedings of the 4th ASME/JSME Joint Fluids Engineering Conference (FEDSM2003-45065), 1-8, Honolulu, Jul. 2003. (Summary) インデューサに生じるキャビテーションについて子午面上の流れに対する解析と回転対称な流面におけるキャビテーション発生下の流れの解析を組み合わせた準三次元解析法を提案し，キャビテーションに与える流れの三次元性の影響を明らかにした．
50.	Kazuki Takeuchi, Junichiro Fukutomi, Hideyuki Kodani and Hironori Horiguchi : Study on Performance and Internal Flow of Cross-Flow Wind Turbine, Proceedings of the 4th ASME/JSME Joint Fluids Engineering Conference (FEDSM2003-45101), 1-7, Honolulu, Jul. 2003. (Summary) 都市型小形風車として注目されるクロスフロー風車について，円筒型ケーシングを用いてその出力係数を約2．0倍に増大させるとともに，その時のケーシング形状，内部流れについて明らかにした．
51.	Sunao Miyauchi, Hironori Horiguchi, Junichiro Fukutomi and Akihiro Takahashi : Optimization of Meridional Flow Channel Design of Pump Impeller, Proceedings of the 9th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, 1-5, Honolulu, Feb. 2002. (Summary) 羽根車子午面流路形状に勾配法を用いた最適化手法によって高効率羽根車を設計する新しい手法を提案したもので，ポンプ性能試験からその妥当性について示した．
52.	Satoshi Watanabe, Akinori Furukawa, Hironori Horiguchi, Junichiro Fukutomi and Yoshinobu Tsujimoto : Theoretical Analysis of Unsteady Blade loading of Inducers under Rotating Cavitation, Proceedings of the Fourth International Symposium on Cavitation (CAVI2001), 1-8, Pasadena, California, USA, Jun. 2001. (Summary) 旋回キャビテーション発生下の二次元平板翼列に作用する非定常流体力および非定常翼面圧力分布を特異点法を用いて解析する方法を示した．
53.	Muneyuki Kawase, Junichiro Fukutomi, Yoshiyuki Nakase and Tadaaki Kuwauchi : Study on the Peformanceand Internal Flow of Winnowing Fans, Proceedings of the 3rd ASME/JSME Joint Fluids Engineering Conference, 1-6, San Francisco, Jul. 1999. (Summary) 本報告は，軸方向長さが長いプレートファンを用いるコンバイン用の唐みファンにおいて，前向き羽根を用いることで高圧力，高効率が得られることを示すとともに，高い選別精度を得る上で重要なファン出口の軸方向の速度分布の一様化が図れることを明らかにした．
54.	Hitoshi Shinhama, Junichiro Fukutomi, Yoshiyuki Nakase, Yontao Chin, Tadaaki Kuwauchi and Sunao Miyauchi : Study of Reverse Running Pump Turbine, Proceedings of the 3rd ASME/JSME Joint Fluids Engineering Conference, 1-6, San Francisco, Jul. 1999. (Summary) 本報告は，小水力発電用水車として汎用の渦巻きポンプを逆転して運転するポンプ逆転水車について詳細な実験を行い，ポンプ特性と水車特性の比較，水車としての内部流れの解明，羽根車入口部の羽根形状が水車性能に及ぼす影響などについて検討した．
55.	Yoshiyuki Nakase, Vo Quang Minh and Junichiro Fukutomi : A Study of Stagnation Points in Diagonal Impeller for Fish Transporting Pump, Proceedings of The 3rd International Conference on Pumps and Fans, 315-326, Beijing, Oct. 1998. (Summary) 本論文は，対称形クロスフロー水車を用いた波力水車について，性能特性に及ぼすケーシング形状，羽根車の慣性モーメントの影響を検討した．さらに往復流中の羽根車内の渦の挙動や羽根車各部の流動状態をトレ-サ粒子による可視化法によって明らかにした．
56.	Junichiro Fukutomi and Yoshiyuki Nakase : Cross-Flow Turbine with Axisymmetric Casing for Wave Power Conversion, Proceedings of the 5th Asian International Conference on Fluid Machinery, Vol.3, 849-856, Seoul, Oct. 1997. (Summary) 本論文は，対称形クロスフロー水車を用いた波力水車について，性能特性に及ぼすケーシング形状，羽根車の慣性モーメントの影響を検討した．さらに往復流中の羽根車内の渦の挙動や羽根車各部の流動状態をトレ-サ粒子による可視化法によって明らかにした．
57.	Junichiro Fukutomi and Yoshiyuki Nakase : Running Characteristics of a Cross-Flow Turbine in Oscillating Flow, Proc. of the 6th International Offshore and Polar Engineering Conference, 75-81, Los Angeles, May 1996. (Summary) 本報告は，対称形クロスフロー水車を用いた波力水車について上下往復流中の水車性能に及ぼす慣性モーメントの影響を調べるとともに，本水車の相似則を考慮した運動方程式を導き，シミュレーションによって往復流中の回転数，効率などの作動特性を評価した．
58.	Yoshihiro Shimada, Junichiro Fukutomi, Yoshiyuki Nakase and Kunio Yasuda : Flow Analysis in a Multiple-Disk Laminar Flow Fan, Proc. of the 4th Asian International Conference on Fluid Machinery, 182-187, Suzhou, China, Oct. 1993. (Summary) 本論文は，多板式層流ファンの羽根車内の流れを子午面内の非粘性解析と平行平板間の粘性解析を組合わせて，準三次元的に解析する方法を示した．本解析法によって，羽根車出口の流れは軸方向に非一様な分布を示すことを明らかにするとともに，内部流れに及ぼす流量と回転数の影響を検討した．
59.	Masashi Ichimiya, Yoshiyuki Nakase and Junichiro Fukutomi : Structure of a Turbulence Wedge Developed from a Single Roughness Element on a Flat Plate, Engineering Turbulence Modelling and Experiments 2, 613-622, Florence, Italy, Jun. 1993. (Summary) 層流境界層の乱流遷移に関する実験的研究である．この遷移は3次元突起列によって強制的に生じさせるものである．層流境界層内に単一の3次元突起が存在すると，その下流にくさび形の乱流領域(乱流くさび)が形成される．この乱流くさび領域の平均·変動速度を熱線風速計とI型熱線プローブを用いて測定し，くさびの輪郭線や広がり角度を明確な定義に基づいて示した．また平均量は突起直後では十分発達しておらず，下流に向かって徐々に発達することが明らかになった．
60.	Junichiro Fukutomi and Yoshiyuki Nakase : A Study of Turbine for Wave Power Generation, Proc. of the First(1990) Pacific/Asia Offshore Mechanics Symposium, Vol.1, 193-198, Seoul, Jun. 1990. (Summary) 本論文は，羽根車にクロスフローランナを用いた新しい波力発電用水車について述べたものである．周期4∼12秒の往復流中で羽根車は一定方向に連続的に回転し，これによって出力を連続的に取出すことが出来ることを示した．さらに，負荷荷重と出力の関係を明らかにした．
61.	Yoshiyuki Nakase, Junichiro Fukutomi, Takashi Watanabe, Toshio Suetsugu and Takashi Kubota : A Study of Cross-Flow Turbine(Effects of Nozzle Shape on Its Performance), Proc. of ASME 103rd Winter Annual Meeting, Small Hydro Power Fluid Machinery, 13-18, Phoenix, U.S.A., Nov. 1982. (Summary) 本論文は，クロスフロー水車のノズル開き角度，ノズルスロート幅，ノズル壁形状などのノズル最適形状を決定したものである．また内部流れを検討し，第一段出口から第二段入口への流れは増速されることを示した．
62.	Yoshiyuki Nakase, Takashi Watanbe, Junichiro Fukutomi, Yoshiyasu Hama and Masanobu Inubushi : A Quasi-Three Dimensional Analysis of Choking Flow for Radial Gas Turbine, Proc. of the 23rd Int. Gas Turbine Conf. , ASME, 1-11, London, Apr. 1978. (Summary) 本論文は，妹尾，中瀬が開発したターボ圧縮機羽根車用準三次元解析プログラムをタービンで流れが音速程度まで使用できるように改良し，さらに流路に発達する境界層の計算を行い，ブロッケージがチョーク流量に及ぼす影響を考慮した．また，羽根車出口の境界層厚さに基づいて羽根車内の損失を見積もり，この値を用いて羽根車内の損失を基礎式の中で考慮できるようにした．

Proceeding of Domestic Conference:

1.	松原巧, Toru Shigemitsu and Junichiro Fukutomi : 流体食品ポンプのバックシュラウド近傍における内部流れ, 日本機械学会中四国支部総会講演会, Mar. 2016.
2.	阪口昌寛, Junichiro Fukutomi and Toru Shigemitsu : 医療用超小型ポンプの研究, 第93期日本機械学会流体工学部門講演会, Nov. 2015.
3.	福田裕章, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンの設計流量における前後段動翼列間流れ場, 第93期日本機械学会流体工学部門講演会, Nov. 2015.
4.	竹島康東司, Junichiro Fukutomi and Toru Shigemitsu : 小型ハイドロタービンにおける前後段翼列間流れに関する研究, 第93期日本機械学会流体工学部門講演会, Nov. 2015.
5.	尾花大記, Junichiro Fukutomi and Toru Shigemitsu : 対称形ケーシングを有するクロスフロー風車の CFD 解析, 第93期日本機械学会流体工学部門講演会, Nov. 2015.
6.	竹島康東司, Junichiro Fukutomi and Toru Shigemitsu : インライン式小型ハイドロタービンの安定運転に向けた研究開発, 日本機械学会2015年度年次大会, Sep. 2015.
7.	阪口昌寛, Junichiro Fukutomi and Toru Shigemitsu : 小型遠心ポンプの高性能設計指針に関する研究, 日本機械学会2015年度年次大会, Sep. 2015.
8.	福田裕章, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンの部分流量における前後段動翼列間流れ場, 日本機械学会2015年度年次大会, Sep. 2015.
9.	Toru Shigemitsu, 竹島康東司 and Junichiro Fukutomi : 二重反転形小型ハイドロタービンのスポーク形状が性能と内部流れに及ぼす影響, ターボ機械協会総会講演会, May 2015.
10.	田中健輔, Toru Shigemitsu and Junichiro Fukutomi : 二重反転形小型軸流ファンにおける動翼列間干渉の数値流れ解析, 日本機械学会中四国支部総会講演会, Mar. 2015.
11.	田中地洋, Junichiro Fukutomi and Toru Shigemitsu : 羽根車支持用スポークが二重反転形小型ハイドロタービンの性能と内部流れに及ぼす影響について, 第92期日本機械学会流体工学部門講演会, Oct. 2014.
12.	松原巧, 石岡竜哉, Junichiro Fukutomi and Toru Shigemitsu : 流体食品ポンプの性能と内部流れに対する主板形状の影響, 第92期日本機械学会流体工学部門講演会, Oct. 2014.
13.	小川裕大, Junichiro Fukutomi, Toru Shigemitsu and 和田崇志 : 小型遠心ポンプの中間羽根長さが性能と内部流れに及ぼす影響, 第92期日本機械学会流体工学部門講演会, Oct. 2014.
14.	Toru Shigemitsu, 田中地洋 and Junichiro Fukutomi : 二重反転形小型ハイドロタービンの最高効率流量点における内部流れ, ターボ機械協会大分講演会, Sep. 2014.
15.	小倉康平, Junichiro Fukutomi and Toru Shigemitsu : 流水を利用する小型プロペラタービンに関する研究, 日本機械学会2014年度年次大会, Sep. 2014.
16.	篠原大昂, Junichiro Fukutomi and Toru Shigemitsu : 低粘度流体食品ポンプにおける軸方向断面での非定常内部流れの比較, 日本機械学会2014年度年次大会, Sep. 2014.
17.	Toru Shigemitsu and Junichiro Fukutomi : 高圧・高風量な小型冷却ファンの入口および出口流れのPIV計測, ターボ機械協会総会講演会, May 2014.
18.	芳田直征, Junichiro Fukutomi and Toru Shigemitsu : ノズル・ディフューザ形状がクロスフロー風車の性能に及ぼす影響の調査, 日本機械学会中四国支部総会講演会, Mar. 2014.
19.	川﨑啓介, Junichiro Fukutomi and Toru Shigemitsu : 流水を利用する小型プロペラタービンの実証実験, 日本機械学会中四国支部総会講演会, Mar. 2014.
20.	田中地洋, Junichiro Fukutomi and Toru Shigemitsu : 流量変化時における二重反転形小型ハイドロタービンの性能特性, 第91期日本機械学会流体工学部門講演会, Nov. 2013.
21.	村上英輝, Junichiro Fukutomi, Toru Shigemitsu and 田仲浩平 : 血液ポンプ評価のための循環系シミュレータの開発, 第91期日本機械学会流体工学部門講演会, Nov. 2013.
22.	手島誠矢, Junichiro Fukutomi, Toru Shigemitsu and 西泰行 : クローズド形二枚羽根遠心ポンプの変動流体力に及ぼすケーシングスロート面積の影響, 第91期日本機械学会流体工学部門講演会, Nov. 2013.
23.	Toru Shigemitsu, 田中地洋 and Junichiro Fukutomi : 二重反転形小型ハイドロタービンの非設計流量点における内部流れ, ターボ機械協会信州講演会, Sep. 2013.
24.	田中健輔, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンの前後段翼列間距離が性能特性と内部流れに及ぼす影響, 日本機械学会2013年度年次大会, Sep. 2013.
25.	田中地洋, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型ハイドロタービンの性能および内部流れに関する研究, 日本機械学会2013年度年次大会, Sep. 2013.
26.	後田景以, 中村怜, Junichiro Fukutomi and Toru Shigemitsu : 小型クロスフローファンの内部流動状態および性能特性に関する研究, 日本機械学会2013年度年次大会, Sep. 2013.
27.	田中健輔, Toru Shigemitsu, Junichiro Fukutomi and 清水大喜 : 部分流量における二重反転形小型軸流ファン出口流れのPIV計測, ターボ機械協会総会講演会, May 2013.
28.	Toru Shigemitsu, Junichiro Fukutomi, 田中地洋 and 其畑遼介 : 繊維状異物混入時における二重反転形小型ハイドロタービンの内部流れ, ターボ機械協会総会講演会, May 2013.
29.	八田朋樹, Junichiro Fukutomi and Toru Shigemitsu : 無針注射器から射出されるジェットの流動現象に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2013.
30.	石岡竜哉, 久保慧史, Junichiro Fukutomi and Toru Shigemitsu : セミオープン羽根車を用いた流体食品ポンプの内部流動, 第90期日本機械学会流体工学部門講演会, Nov. 2012.
31.	和田崇志, Junichiro Fukutomi and Toru Shigemitsu : 中間羽根を有する小型ターボポンプの内部流れに関する研究, 第90期日本機械学会流体工学部門講演会, Nov. 2012.
32.	阿川琢哉, Junichiro Fukutomi and Toru Shigemitsu : 高圧・高風量な小型冷却ファンの内部流れについて, 第90期日本機械学会流体工学部門講演会, Nov. 2012.
33.	久保慧史, 石岡竜哉, Junichiro Fukutomi and Toru Shigemitsu : 低粘度流体食品用遠心ポンプの非定常内部流動について, ターボ機械協会沖縄講演会, Sep. 2012.
34.	Toru Shigemitsu, 阿川琢哉 and Junichiro Fukutomi : 高圧・高風量な小型冷却ファンの非定常内部流れについて, ターボ機械協会沖縄講演会, Sep. 2012.
35.	久保慧史, 石岡竜哉, Junichiro Fukutomi and Toru Shigemitsu : 流体食品ポンプの羽根出口角が内部流れに及ぼす影響, 日本機械学会2012年度年次大会, Sep. 2012.
36.	清水大喜, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンの羽根車内の非定常内部流動について, 日本機械学会2012年度年次大会, Sep. 2012.
37.	手島誠矢, Junichiro Fukutomi, Toru Shigemitsu and 西泰行 : 汚水用遠心ポンプの変動流体力に関する研究, 日本機械学会2012年度年次大会, Sep. 2012.
38.	法貴雄介, 中村怜, Junichiro Fukutomi and Toru Shigemitsu : クロスフローファンの羽根車径が性能および内部流れに及ぼす影響, 日本機械学会2012年度年次大会, Sep. 2012.
39.	阿川琢哉, 井内一博, Junichiro Fukutomi and Toru Shigemitsu : 高圧・高風量な小型冷却ファンの性能特性について, ターボ機械協会総会講演会, May 2012.
40.	Toru Shigemitsu, 其畑遼介 and Junichiro Fukutomi : 二重反転形小型ハイドロタービンに関する研究, ターボ機械協会総会講演会, May 2012.
41.	法貴雄介, 中村怜, Junichiro Fukutomi and Toru Shigemitsu : 小型クロスフローファンにおける羽根車とケーシングの隙間が内部流れに及ぼす影響, 日本機械学会中四国支部総会講演会, Mar. 2012.
42.	久保慧史, Junichiro Fukutomi and Toru Shigemitsu : 低粘度流体を用いた流体食品ポンプの性能と内部流れに対する羽根出口角の影響, 日本機械学会中四国支部総会講演会, Mar. 2012.
43.	清水大喜, Junichiro Fukutomi, Toru Shigemitsu and 井内一博 : 二重反転形小型軸流ファンの回転速度制御に関する基礎研究, 日本機械学会中四国支部総会講演会, Mar. 2012.
44.	井内一博, 清水大喜, 其畑遼介, Junichiro Fukutomi and Toru Shigemitsu : 高出力小型空冷ファンの性能特性について, 日本機械学会中四国支部総会講演会, Mar. 2012.
45.	大西健司, 田仲浩平, Junichiro Fukutomi and Toru Shigemitsu : 遠心型血液ポンプを用いた生体循環シミュレータの開発, 日本機械学会第22回バイオフロンティア講演会, Oct. 2011.
46.	久保慧史, Junichiro Fukutomi and Toru Shigemitsu : 流体食品ポンプのチップクリアランスが性能と内部流れに及ぼす影響, ターボ機械協会宮崎講演会, Sep. 2011.
47.	Toru Shigemitsu, 清水大喜, 井内一博 and Junichiro Fukutomi : 二重反転形小型軸流ファンの回転数制御が内部流れに及ぼす影響, ターボ機械協会宮崎講演会, Sep. 2011.
48.	久保慧史, 岡本慎司, Junichiro Fukutomi and Toru Shigemitsu : 低粘度流体を用いた流体食品ポンプに関する研究, 日本機械学会2011年度年次大会, Sep. 2011.
49.	長野光, 堀田義圭, Junichiro Fukutomi and Toru Shigemitsu : 一枚羽根ポンプ逆転水車に関する研究, 日本機械学会2011年度年次大会, Sep. 2011.
50.	清水大喜, 岡部佑樹, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンにおける前後段翼列間が内部流れに及ぼす影響, 日本機械学会2011年度年次大会, Sep. 2011.
51.	其畑遼介, 井内一博, Junichiro Fukutomi and Toru Shigemitsu : 形状変更が高出力空冷ファンの性能特性に及ぼす影響, 日本機械学会2011年度年次大会, Sep. 2011.
52.	井内一博, 其畑遼介, Junichiro Fukutomi and Toru Shigemitsu : 高出力空冷ファンの内部流れに関する研究, 日本機械学会2011年度年次大会, Sep. 2011.
53.	Toru Shigemitsu, 井内一博, 其畑遼介 and Junichiro Fukutomi : 高出力空冷ファンの性能と内部流れについて, ターボ機械協会総会講演会, May 2011.
54.	梶兼輔, Junichiro Fukutomi and Toru Shigemitsu : 小型ターボポンプの羽根厚さが羽根車性能に及ぼす影響, 日本機械学会中四国支部総会講演会, Mar. 2011.
55.	井内一博, 岡部佑樹, Junichiro Fukutomi and Toru Shigemitsu : 高出力空冷ファンに関する研究, 日本機械学会中四国支部総会講演会, Mar. 2011.
56.	吉村圭央, 住友尚志, Junichiro Fukutomi and Toru Shigemitsu : 圧力式ホモジナイザーのバルブ形状が及ぼす粒度分布への影響, 日本機械学会中四国支部総会講演会, Mar. 2011.
57.	細谷拓司, 中村怜, Junichiro Fukutomi and Toru Shigemitsu : 小型クロスフローファンの性能と内部流れに関する研究, 日本機械学会中四国支部総会講演会, Mar. 2011.
58.	東出暁, Junichiro Fukutomi, Toru Shigemitsu and 西泰行 : 翼先端流れに着目した斜流ポンプの不安定特性改善に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2011.
59.	岡部佑樹, 井内一博, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンの回転数制御に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2011.
60.	吉村圭央, 住友尚志, Junichiro Fukutomi and Toru Shigemitsu : 圧力式ホモジナイザーのバルブ形状が及ぼす乳化作用への影響, 第88期日本機械学会流体工学部門講演会, Oct. 2010.
61.	岡部佑樹, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンの前後段翼列間距離の影響, 第88期日本機械学会流体工学部門講演会, Oct. 2010.
62.	東出暁, Junichiro Fukutomi and Toru Shigemitsu : 高比速度斜流ポンプにおける不安定特性の抑制に関する研究について, 日本機械学会中四国支部・九州支部合同企画徳島講演会, Oct. 2010.
63.	大西健司, 田仲浩平, Junichiro Fukutomi and Toru Shigemitsu : 遠心型血液ポンプを用いた生体循環シミュレータの研究, 日本機械学会中四国支部・九州支部合同企画徳島講演会, Oct. 2010.
64.	Junichiro Fukutomi, 飯野峻也, 中村怜, Toru Shigemitsu and 細谷拓司 : クロスフローファンの入口予旋回流れとその制御, 日本機械学会中四国支部・九州支部合同企画徳島講演会, Oct. 2010.
65.	吉村圭央, 住友尚志, Junichiro Fukutomi and Toru Shigemitsu : 圧力式ホモジナイザーのバルブ形状が及ぼす液滴破壊の影響, 日本機械学会中四国支部・九州支部合同企画徳島講演会, Oct. 2010.
66.	梶兼輔, Junichiro Fukutomi, Toru Shigemitsu and 名定亮一 : 小型ターボポンプの羽根出口角が羽根車性能に及ぼす影響, 日本機械学会中四国支部・九州支部合同企画徳島講演会, Oct. 2010.
67.	岡本慎司, Junichiro Fukutomi and Toru Shigemitsu : 流体食品ポンプについて, 日本機械学会中四国支部・九州支部合同企画徳島講演会, Oct. 2010.
68.	岡部佑樹, 井内一博, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンの非定常内部流動について, 日本機械学会中四国支部・九州支部合同企画徳島講演会, Oct. 2010.
69.	Toru Shigemitsu, 岡本慎司 and Junichiro Fukutomi : 食品流体ポンプの性能と内部流れに関する研究, ターボ機械協会岩手講演会, Sep. 2010.
70.	井内一博, 岡部佑樹, Junichiro Fukutomi and Toru Shigemitsu : 部分流量域における二重反転形小型軸流ファンの内部流動, 日本機械学会2010年度年次大会, Sep. 2010.
71.	岡本慎司, Junichiro Fukutomi and Toru Shigemitsu : 食品流体ポンプに関する研究, 日本機械学会2010年度年次大会, Sep. 2010.
72.	細谷拓司, 中村怜, 大西健司, Junichiro Fukutomi and Toru Shigemitsu : 小型クロスフローファンに関する研究, 日本機械学会2010年度年次大会, Sep. 2010.
73.	Toru Shigemitsu, 名定亮一, 梶兼輔 and Junichiro Fukutomi : 小型ターボポンプの羽根出口角が性能と内部流れに及ぼす影響, ターボ機械協会総会講演会, May 2010.
74.	名定亮一, Junichiro Fukutomi and Toru Shigemitsu : 小型ターボポンプの性能特性について, 日本機械学会中四国支部総会講演会, Mar. 2010.
75.	松岡司, 境真太郎, Junichiro Fukutomi and Toru Shigemitsu : 未加硫ゴムの圧縮成形時における流動現象に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2010.
76.	山下彰之, Junichiro Fukutomi and Toru Shigemitsu : 高粘度液体充填機に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2010.
77.	吉村圭央, 住友尚志, Junichiro Fukutomi and Toru Shigemitsu : 圧力式ホモジナイザーの乳化作用に及ぼすバルブ形状の影響, 日本機械学会中四国支部総会講演会, Mar. 2010.
78.	大藤啓生, Junichiro Fukutomi and Toru Shigemitsu : クロスフロー風車に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2010.
79.	岡部佑樹, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンの性能特性について, 日本機械学会中四国支部総会講演会, Mar. 2010.
80.	吉村圭央, 住友尚志, Junichiro Fukutomi and Toru Shigemitsu : 圧力式ホモジナイザーの内部流れと液滴破壊の研究, 第87期日本機械学会流体工学部門講演会, Nov. 2009.
81.	岡部佑樹, 矢野忠寛, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンの内部流れについて, 第87期日本機械学会流体工学部門講演会, Nov. 2009.
82.	松岡司, 境真太郎, Toru Shigemitsu and Junichiro Fukutomi : 未加硫ゴムの圧縮成形時における流動現象とプレス速度の関係, 第87期日本機械学会流体工学部門講演会, Nov. 2009.
83.	堀田義圭, 藤原亮太, 西泰行, Junichiro Fukutomi and Toru Shigemitsu : 一枚羽根遠心ポンプのラジアルスラストに関する研究, 日本機械学会2009年度年次大会, Sep. 2009.
84.	Toru Shigemitsu, 名定亮一 and Junichiro Fukutomi : 小型ターボポンプの性能特性と内部流れに関する研究, ターボ機械協会名古屋講演会, Sep. 2009.
85.	Toru Shigemitsu, 岡部佑樹 and Junichiro Fukutomi : 小型軸流ファンの性能特性と流れ場について, ターボ機械協会総会講演会, May 2009.
86.	松岡司, 境真太郎, Toru Shigemitsu and Junichiro Fukutomi : 未加硫ゴムの圧縮成形時における流動現象と不均一充填に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2009.
87.	石田直樹, 住友尚志, Junichiro Fukutomi and Toru Shigemitsu : 圧力式乳化機の内部流れと乳化効果, 日本機械学会中四国支部総会講演会, Mar. 2009.
88.	白井祐太郎, Junichiro Fukutomi and Toru Shigemitsu : 二重反転羽根車を用いた多翼ファンにおける内部流動状態, 日本機械学会中四国支部総会講演会, Mar. 2009.
89.	名定亮一, Junichiro Fukutomi and Toru Shigemitsu : 小型ポンプのチップクリアランスが性能と内部流れに及ぼす影響に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2009.
90.	矢野忠寛, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンの性能特性と内部流れ, 日本機械学会中四国支部総会講演会, Mar. 2009.
91.	岩佐浩行, Junichiro Fukutomi, Toru Shigemitsu and 西泰行 : 高比速度斜流ポンプに関する研究, 日本機械学会中四国支部総会講演会, Mar. 2009.
92.	松岡司, 境真太郎, Toru Shigemitsu and Junichiro Fukutomi : 未加硫ゴムの圧縮成形時における流動現象とフローマーク発生メカニズムに関する研究, 日本流体力学会年会2008, Sep. 2008.
93.	石田直樹, 住友尚志, 名定亮一, Junichiro Fukutomi and Toru Shigemitsu : 圧力式乳化機の内部流れと乳化作用の研究, 日本機械学会2008年度年次大会, Aug. 2008.
94.	藤原亮太, 西泰行, Junichiro Fukutomi and Toru Shigemitsu : 一枚羽根遠心羽根車の設計法に関する研究, 日本機械学会2008年度年次大会, Aug. 2008.
95.	矢野忠寛, 松岡司, Junichiro Fukutomi and Toru Shigemitsu : 二重反転形小型軸流ファンに関する研究, 日本機械学会2008年度年次大会, Aug. 2008.
96.	白井祐太郎, 安信友裕, Junichiro Fukutomi and Toru Shigemitsu : 二重反転羽根車による多翼ファンの高効率化に関する研究, 日本機械学会2008年度年次大会, Aug. 2008.
97.	(名) TRANNGUYENBINH, Junichiro Fukutomi and Toru Shigemitsu : クロスフローファンの性能と内部流れに関する研究, 日本機械学会2008年度年次大会, Aug. 2008.
98.	西泰行, Junichiro Fukutomi, 松尾信明, 藤原亮太 and Toru Shigemitsu : 汚水用新型ポンプの損失解析, ターボ機械協会総会講演会, May 2008.
99.	Toru Shigemitsu, 矢野忠寛, 松岡司 and Junichiro Fukutomi : 小型軸流ファンの性能特性と相似則に関する研究(二重反転形採用の可能性について), ターボ機械協会総会講演会, May 2008.
100.	白井祐太郎, 安信友裕, Junichiro Fukutomi and Toru Shigemitsu : 二重反転羽根車による多翼ファンの高圧力化に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2008.
101.	Toru Shigemitsu, 河田匡仙, 境真太郎 and Junichiro Fukutomi : 未加硫ゴムの圧縮成形時における流動現象と不良発生メカニズムに関する研究, 第85期日本機械学会流体工学部門講演会, Nov. 2007.
102.	西泰行, Junichiro Fukutomi, 松尾信明, 藤原亮太 and Toru Shigemitsu : 汚水用新型ポンプの内部流れに関する研究, 日本機械学会2007年度年次大会, Sep. 2007.
103.	河田匡仙, Junichiro Fukutomi, Toru Shigemitsu and 境真太郎 : ゴム製品の圧縮成形時における流動現象に関する研究, 日本機械学会2007年度年次大会, Sep. 2007.
104.	武山裕一, Junichiro Fukutomi and Toru Shigemitsu : 対称形ケーシングの形状変化がクロスフロー風車の性能に及ぼす影響について, 日本機械学会2007年度年次大会, Sep. 2007.
105.	Toru Shigemitsu and Junichiro Fukutomi : 二重反転形小型軸流ファンの性能特性と内部流れについて, 日本機械学会2007年度年次大会, Sep. 2007.
106.	安信友裕, Junichiro Fukutomi and Toru Shigemitsu : 二重反転羽根車による多翼ファンの高圧力化に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2007.
107.	河田匡仙, Junichiro Fukutomi, Toru Shigemitsu and 境真太郎 : ゴム製品の加硫成型に関する流動解析, 日本機械学会中四国支部総会講演会, Mar. 2007.
108.	西澤孝平, Junichiro Fukutomi and Toru Shigemitsu : 遠心送風機ケーシング内の流動状態に関する研究, 日本機械学会中四国支部総会講演会, Mar. 2007.
109.	武山裕一, Junichiro Fukutomi and Toru Shigemitsu : 対称形ケーシングを有するクロスフロー風車の研究, 日本機械学会中四国支部総会講演会, Mar. 2007.
110.	Masashi Ichimiya, Yoshiyuki Nakase and Junichiro Fukutomi : 単一突起による平板境界層の乱流遷移機構, 日本機械学会第77期流体工学部門講演会講演論文集, Oct. 1999.
111.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi and Seiichiro Kondoh : 単一突起下流に発達する乱流くさびの縦渦構造, 日本機械学会中国四国支部第35期総会講演会講演論文集, 107-108, Mar. 1997.
112.	Masashi Ichimiya, Yoshiyuki Nakase and Junichiro Fukutomi : 単一突起下流の乱流くさびの組織構造, 日本機械学会第74期全国大会講演論文集, Vol.3, 67-68, Sep. 1996.
113.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi and Seiichiro Kondoh : 単一突起下流の乱流くさびの発達過程, 日本機械学会流体工学部門講演会講演論文集, 137-138, Jul. 1996.
114.	Masashi Ichimiya, Yoshiyuki Nakase and Junichiro Fukutomi : 層流境界層内の乱流くさびの統計的性質, 日本機械学会第73期通常総会講演会講演論文集, Vol.3, 129-130, Apr. 1996.
115.	Masashi Ichimiya, Yoshiyuki Nakase and Junichiro Fukutomi : 単一突起下流の乱流くさび内のバースト構造, 日本機械学会第73期全国大会講演論文集, Vol.2, 217-218, Sep. 1995.
116.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi and Mikio Yoshikawa : 順圧力こう配下の再層流化乱流境界層のバースト構造, 日本機械学会第72期通常総会講演会講演論文集, Vol.3, 37-38, Mar. 1995.
117.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi and Keizo Mano : 平板上の単一突起下流の乱流くさび内の縦渦特性, 日本機械学会流体工学部門講演会講演論文集, 311-312, Nov. 1994.
118.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi and Masatake Yokoi : 旋回渦の特性の基礎研究, 日本機械学会山梨講演会講演論文集, 42-43, Oct. 1994.
119.	Masashi Ichimiya, Yoshiyuki Nakase and Junichiro Fukutomi : 順圧力こう配下の逆遷移乱流境界層の統計的性質, 日本機械学会第72期全国大会講演論文集, Aug. 1994.
120.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi and Masaaki Fukunaga : 単一突起より発達する乱流くさび内の縦渦構造, 日本機械学会第71期全国大会講演論文集, Vol.C, 485-487, Oct. 1993.
121.	Masashi Ichimiya, Yoshiyuki Nakase, Ikuo Nakamura, Shintaro Yamashita, Junichiro Fukutomi and Shinya Fujii : 順圧力勾配下の乱流境界層の逆遷移, 日本機械学会第70期通常総会講演会講演論文集, Vol.2, 47-49, Mar. 1993.
122.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi and Masaaki Fukunaga : 平板上の突起より発達する乱流くさびの変動特性, 日本機械学会松山地方講演会講演論文集, 22-24, Nov. 1992.
123.	Masashi Ichimiya, Yoshiyuki Nakase, Junichiro Fukutomi, Katsumi Yamana and Masaaki Fukunaga : 平板上の突起より発達する乱流くさびの平均特性, 日本機械学会第70期全国大会講演論文集, Vol.C, 503-505, Oct. 1992.
124.	Masashi Ichimiya, Yoshiyuki Nakase, Ikuo Nakamura, Shintaro Yamashita, Junichiro Fukutomi and Masaaki Fukunaga : 単一突起下流の乱流くさびの発達過程, 日本機械学会第69期全国大会講演会講演論文集, Vol.B, 218-220, Oct. 1991.
125.	Katsumi Yamana, Masashi Ichimiya, Yoshiyuki Nakase, Ikuo Nakamura, Shintaro Yamashita and Junichiro Fukutomi : 層流境界層中の単一突起による乱流くさびの構造, 日本機械学会中国四国支部第29期総会講演会講演論文集, 294-296, Mar. 1991.
126.	Masashi Ichimiya, Yoshiyuki Nakase, Ikuo Nakamura, Shintaro Yamashita, Junichiro Fukutomi and Takashi Mihara : 順圧力勾配下の急加速乱流境界層の挙動, 日本機械学会鳥取地方講演会講演論文集, 101-103, Nov. 1990.

Report:

1.	Fumiaki Nagao, Tokuo Ohnishi, Junichiro Fukutomi, Minoru Noda, 福富汎 and 犬伏宏行 : 日本の風土特性に応じた風力発電の安定化・コスト低減に関する研究(実証試験) 平成19年度研究実績報告書, 1-152, Mar. 2008.
2.	Fumiaki Nagao, Tokuo Ohnishi, Junichiro Fukutomi, Minoru Noda, 福富汎 and 犬伏宏行 : 日本の風土特性に応じた風力発電の安定化・コスト低減に関する研究平成18年度研究実績報告書, 1-111, Mar. 2007.

Patent:

1.	河瀬宗之, Junichiro Fukutomi and Yoshiyuki Nakase : 脱穀装置の唐箕, 10-115014 (Apr. 1998), 11-299337 (Nov. 1999), .
2.	河瀬宗之, Junichiro Fukutomi and Yoshiyuki Nakase : 脱穀装置の唐箕, 10-115015 (Apr. 1998), 11-299338 (Nov. 1999), .
3.	河瀬宗之, Junichiro Fukutomi and Yoshiyuki Nakase : 脱穀装置の唐箕, 10-115016 (Apr. 1998), 11-299339 (Nov. 1999), .
4.	河瀬宗之, Junichiro Fukutomi and Yoshiyuki Nakase : 脱穀装置の唐箕, 10-113474 (Apr. 1998), 11-299336 (Nov. 1999), .
5.	Junichiro Fukutomi and 岩浅昭夫 : 有害物質除去システムを備えた小型焼却炉, 9-329568 (Nov. 1997), 11-141831 (May 1999), .
6.	Yoshiyuki Nakase and Junichiro Fukutomi : 多板式層流ファン, 4-30977 (Feb. 1992), 5-231379 (Sep. 1993), .

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

Study on utilization of micro hydropower using high efficiency and non clog pump reverse water turbine (Project/Area Number: 22560171 )
Reliability evaluation of blood pump for mechanical heart by dynamic response test (Project/Area Number: 20360086 )
Performance Enhancement of Cross-Flow Fan by Inlet Guide vane (Project/Area Number: 17560153 )
A Study of Sirocco Fan with Eccentric Inlet Nozzle (Project/Area Number: 11650176 )
Study on Design Method Considered Circulation Flow and Low Flow Rate Characteristics of a Centrifugal Blower Casing (Project/Area Number: 09650192 )
Search by Researcher Number (30035646)

Professor Emeritus : Fukutomi, Junichiro

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Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)