Yasuyuki NISHIProfessor
■Researcher basic information
Organization
- College of Engineering Department of Mechanical Systems Engineering
- Graduate School of Science and Engineering（Master's Program） Major in Mechanical Systems Engineering
- Graduate School of Science and Engineerin（Doctoral Program） Major in Complex Systems Science
- Faculty of Applied Science and Engineering Domain of Mechanical Systems Engineering
Research Areas
Research Keyword
Career
Member History
External link
■Research activity information
Award
- Oct. 2022, Key Scientific Article, Advances in Engineering
- May 2019, Key Scientific Article, Advances in Engineering
- May 2015, ターボ機械協会小宮賞
- Dec. 2013, グッドデザイン・ものづくりデザイン賞（中小企業庁長官賞）, 公益財団法人日本デザイン振興会
- Oct. 2013, グッドデザイン賞, 公益財団法人日本デザイン振興会
- Feb. 2009, 日本機械工業連合会会長賞
- Sep. 2008, ターボ機械協会チャレンジ大賞
- May 2008, ターボ機械協会賞（技術賞）
- Apr. 2007, 日本機械学会奨励賞（技術）
- Mar. 2007, 日亜賞
Paper
- Internal flow and hydraulic losses of a single blade reverse running pump turbine
Yasuyuki Nishi; Natsumi Itoh, Lead
International Journal of Heat and Fluid Flow, Jul. 2025, [Reviewed] - Multi-objective optimization design method for single-blade centrifugal pump impellers to improve performance and reduce radial thrust
Yasuyuki Nishi; Keito Konno; Satoshi Ono, Lead
European Journal of Mechanics / B Fluids, May 2025, [Reviewed] - Hydraulic Design Method for Gravitational Vortex Type Water Turbines
Yasuyuki Nishi; Ryota Ando; Kenta Saito, Lead
International Journal of Fluid Machinery and Systems, Apr. 2025, [Reviewed] - Improvement of bubble distribution characteristics through multi-objective optimization of flow characteristics of a swirling flow type microbubble generator with fixed blades
Yasuyuki Nishi; Hiroyuki Kogawa; Yuta Utsumi; Masatoshi Futakawa, Lead
Chemical Engineering Research and Design, Nov. 2024, [Reviewed] - Cavitation Characteristics and Internal Flow of a Closed-Type Single Blade Centrifugal Pump
Yasuyuki Nishi; Chunqi Wang, Lead
International Journal of Fluid Machinery and Systems, Oct. 2024, [Reviewed] - Multi-Objective Optimization of an Undershot Cross-Flow Water Turbine Operating in a Free Surface Flow Field
Yasuyuki Nishi; Mikihiro Shindo; Yuichiro Yahagi, Lead
International Journal of Fluid Machinery and Systems, Jul. 2024, [Reviewed] - Erratum to: Internal Flow Structure and Hydraulic Loss of Closed-Type Centrifugal Pumps with a Single Blade
Yasuyuki Nishi; Takahiro Noji; Chunqi Wang, Lead
International Journal of Fluid Machinery and Systems, May 2024 - Optimization Design of Thin Multi-Blade Fan
Yasuyuki Nishi; Hirofumi Fujikawa; Seiya Terunuma; Imran Bin Khairrul Saleh, Lead
International Journal of Fluid Machinery and Systems, Jan. 2024, [Reviewed] - Internal Flow Structure and Hydraulic Loss of Closed-Type Centrifugal Pumps with a Single Blade
Yasuyuki Nishi; Takahiro Noji; Chunqi Wang, Lead
International Journal of Fluid Machinery and Systems, Dec. 2023, [Reviewed] - Multi-objective optimization of an axial flow hydraulic turbine with a collection device to be installed in an open channel
Yasuyuki Nishi; Hiromichi Koga; Yi Hong Wee, Lead
Renewable Energy, Apr. 2023, [Reviewed] - Multi-Objective Optimization of the Collection Device Shape of an Axial Flow Hydraulic Turbine with a Collection Device
Yasuyuki Nishi; Hiromichi Koga; Terumi Inagaki, Lead
International Journal of Fluid Machinery and Systems, Mar. 2023, [Reviewed] - Hydraulic Loss and Internal Flow of a Pump Equipped with an Impeller with Radial and Annular Flow Channels
Takeshi Konishi; Yasuyuki Hirano; Yasuyuki Nishi, Last
International Journal of Fluid Machinery and Systems, Jan. 2023, [Reviewed] - Rotor Design Method for a Propeller-Type Wind Turbine that Combines Optimization Method with the Blade Element Momentum Theory
Yasuyuki Nishi; Nozomi Mori; Terumi Inagaki, Lead
International Journal of Fluid Machinery and Systems, Jan. 2023, [Reviewed] - Performance and radial thrust of single-blade reverse running pump turbine
Yasuyuki Nishi; Natsumi Itoh; Junichiro Fukutomi, Lead
Renewable Energy, Oct. 2022, [Reviewed] - Flow Structure and Slipstream Characteristics of an Axial Flow Hydraulic Turbine with a Collection Device in an Open Channel
Yasuyuki Nishi; Hiroto Sasashita; Terumi Inagaki, Lead
International Journal of Fluid Machinery and Systems, Jun. 2022, [Reviewed] - Study on the design method for axial flow runner that combines design of experiments, response surface method, and optimization method to one-dimensional design method
Yasuyuki Nishi; Nozomi Mori; Naoki Yamada; Terumi Inagaki, Lead
Renewable Energy, Dec. 2021, [Reviewed] - Performance and Flow Field of Gravitation Vortex Type Water Turbine using Volute Tank
Yasuyuki Nishi; Daichi Sukemori; Terumi Inagaki, Lead
International Journal of Fluid Machinery and Systems, Jul. 2021, [Reviewed] - Study on an Impeller with Radial and Circumferential-Flow Channels
Takeshi Konishi; Yasuyuki Hirano; Yasuyuki Nishi, Last
International Journal of Fluid Machinery and Systems, Jun. 2020, [Reviewed] - Erratum to: Flow Structure in Casing of Closed-Type Centrifugal Pump with Single Blade
Yasuyuki Nishi; Takahiro Noji, Lead
International Journal of Fluid Machinery and Systems, May 2020 - Loss analysis of gravitation vortex type water turbine and influence of flow rate on the turbine’s performance
Yasuyuki Nishi; Ryouta Suzuo; Daichi Sukemori; Terumi Inagaki, Lead
Renewable Energy, Apr. 2020, [Reviewed] - Flow Structure in Casing of Closed-Type Centrifugal Pump with Single Blade
Yasuyuki Nishi; Takahiro Noji, Lead
International Journal of Fluid Machinery and Systems, Mar. 2020, [Reviewed] - Study on Foreign Body Passage in an Ultra-Small Axial Flow Hydraulic Turbine
Yasuyuki Nishi; Tomoyuki Kobori; Yutaka Kobayashi; Terumi Inagaki; Norio Kikuchi, Lead
International Journal of Fluid Machinery and Systems, Feb. 2020, [Reviewed] - Improvement of Performance of Undershot Cross-Flow Water Turbines Based on Shock Loss Reduction
Yasuyuki Nishi; Kentaro Hatano; Takashi Okazaki; Yuichiro Yahagi; Terumi Inagaki, Lead
International Journal of Fluid Machinery and Systems, Jan. 2020, [Reviewed] - Effect of flow rate on performance and flow field of an undershot cross-flow water turbine
Yasuyuki Nishi; Yuichiro Yahagi; Takashi Okazaki; Terumi Inagaki, Lead
Renewable Energy, Dec. 2019, [Reviewed] - Study of the internal flow structure of an ultra-small axial flow hydraulic turbine
Yasuyuki Nishi; Tomoyuki Kobori; Nozomi Mori; Terumi Inagaki; Norio Kikuchi, Lead
Renewable Energy, Mar. 2019, [Reviewed] - Performance Characteristics and Flow Field of Axial Flow Hydraulic Turbine in Shallow Open Channel
Yasuyuki Nishi; Genki Sato; Daishi Shiohara; Terumi Inagaki; Norio Kikuchi, Lead
International Journal of Fluid Machinery and Systems, Oct. 2018, [Reviewed] - A study of the flow field of an axial flow hydraulic turbine with a collection device in an open channel
Yasuyuki Nishi; Genki Sato; Daishi Shiohara; Terumi Inagaki; Norio Kikuchi, Lead
Renewable Energy, Jul. 2018, [Reviewed] - Performance and Internal Flow of a Dental Air Turbine Handpiece
Yasuyuki Nishi; Hikaru Fushimi; Kazuo Shimomura; Takeshi Hasegawa, Lead, Hindawi Limited
International Journal of Rotating Machinery, 2018, [Reviewed] - Study on Performance and Flow Field of an Undershot Cross-Flow Water Turbine Comprising Different Number of Blades
Yasuyuki Nishi; Kentaro Hatano; Terumi Inagaki, Lead
Journal of Thermal Science, Oct. 2017, [Reviewed] - Performance characteristics of axial flow hydraulic turbine with a collection device in free surface flow field
Yasuyuki Nishi; Genki Sato; Daishi Shiohara; Terumi Inagaki; Norio Kikuchi, Lead
Renewable Energy, Apr. 2017, [Reviewed] - Performance and Flow Field of a Gravitation Vortex Type Water Turbine
Yasuyuki Nishi; Terumi Inagaki, Lead, Hindawi Limited
International Journal of Rotating Machinery, 2017, [Reviewed] - 下掛け式クロスフロー水車の羽根車近傍の流れに基づく性能分析
谷萩雄一朗; 西泰行; 岡﨑貴司; 稲垣照美,Since the great east Japan earthquake in 2011, renewable energy is turned into importance. Hydro power is one of most important energies because it is not affected by weather condition and possible to generate steady quantity electric power, so it could be base load power. These days low head hydro power generation is going to increase, because it is easy to be set irrigation channel and agricultural waterway. We have developed water turbines appropriately for low head open channels to effectively utilize the hydro power energy. To improve the performance of the turbine, it is necessary to determine the free surface flow patterns around the turbine. We selected the undershot cross-flow water turbines which could apply to various sizes of channel and flow rate. Because we removed the turbine casing and guide vane, free surface flow patterns of the undershot cross-flow water turbine are very complex. We have researched free surface flow patterns around the turbines using both experiment and numerical analysis. We modified the apparatus system, and could measure mechanical friction loss of bearing. We introduced more precise computational grid of numerical analysis. So it was possible to specify more precise flow patterns near the runner. Time-averaged velocity distribution at inner or outer circumference of runner was almost consistent. As rotational speed increased, volume of cross-flow decreased and that of reversal flow increased. In generating torque and power of turbine, the most significant kind of flow was second stage cross-flow, and the most dominant component of flow was angular momentum. We estimated the torque and power of the turbine based on moment-of-momentum equation, and these results were consistent well with those of calculation.
, The Japan Society of Mechanical Engineers
日本機械学会論文集, Sep. 2016, [Reviewed] - Study on the Rotor Design Method for a Small Propeller-Type Wind Turbine
Yasuyuki Nishi; Yusuke Yamashita; Terumi Inagaki, Lead
Journal of Thermal Science, Aug. 2016, [Reviewed] - Erratum: The Flow Field of Undershot Cross-Flow Water Turbines Based on PIV Measurements and Numerical Analysis
Yasuyuki Nishi; Terumi Inagaki; Yanrong Li; Ryota Omiya; Kentaro Hatano, Lead, Errors have been found in Vol. 7 (2014) No. 4 (October-December) pp. 174-182., Turbomachinery Society of Japan, Korean Fluid Machinery Association, Chinese Society of Engineering Thermophysics, IAHR
Internastional Journal of Fluid Machinery and Systems, Jan. 2016 - Study on performance improvement of an axial flow hydraulic turbine with a collection device
Yasuyuki Nishi; Terumi Inagaki; Yanrong Li; Sou Hirama; Norio Kikuchi, Lead, Turbomachinery Society of Japan
International Journal of Fluid Machinery and Systems, 01 Jan. 2016, [Reviewed] - The Design Method of Axial Flow Runners Focusing on Axial Flow Velocity Uniformization and Its Application to an Ultra-Small Axial Flow Hydraulic Turbine
Yasuyuki Nishi; Yutaka Kobayashi; Terumi Inagaki; Norio Kikuchi, Lead, Hindawi Limited
International Journal of Rotating Machinery, 2016, [Reviewed] - Analysis of aerodynamic sound noise generated by a large-scaled wind turbine and its physiological evaluation
T. Inagaki; Y. Li; Y. Nishi, Last
International Journal of Environmental Science and Technology, Jun. 2015, [Reviewed] - Unsteady Flow Analysis of an Axial Flow Hydraulic Turbine with Collection Devices Comprising a Different Number of Blades
Yasuyuki Nishi; Terumi Inagaki; Yanrong Li; Sou Hirama; Norio Kikuchi, Lead
Journal of Thermal Science, Jun. 2015, [Reviewed] - Visualization study of flow-excited acoustic resonance in closed tandem side branches using high time-resolved particle image velocimetry
Y. Li; S. Someya; K. Okamoto; T. Inagaki and Y. Nishi, Last
Journal of Mechanical Science and Technology, Mar. 2015, [Reviewed] - Study on an Undershot Cross-Flow Water Turbine with Straight Blades
Yasuyuki Nishi; Terumi Inagaki; Yanrong Li; Kentaro Hatano, Lead, Hindawi Limited
International Journal of Rotating Machinery, 2015, [Reviewed] - Component analysis of unsteady hydrodynamic force of closed-type centrifugal pump with single blades of different blade outlet angles
Yasuyuki Nishi; Junichiro Fukutomi, Lead, Hindawi Publishing Corporation
International Journal of Rotating Machinery, 2015, [Reviewed] - Study on flow-induced acoustic resonance in symmetrically located side-branches using dynamic PIV technique
Y. Li; S. Someya; K. Okamoto; T. Inagaki and Y. Nishi, Last
Journal of Fluid Science and Technology, Jul. 2014, [Reviewed] - Study on the Flow Field of an Undershot Cross-flow Water Turbine
Yanrong Li; Yasuyuki Nishi; Terumi Inagaki; Kentarou Hatano
Applied Mechanics and Materials, Jul. 2014 - Study on an axial flow hydraulic turbine with collection device
Yasuyuki Nishi; Terumi Inagaki; Kaoru Okubo; Norio Kikuchi, Lead, Hindawi Publishing Corporation
International Journal of Rotating Machinery, 18 May 2014, [Reviewed] - Study on an Undershot Cross-Flow Water Turbine
Yasuyuki Nishi; Terumi Inagaki; Yanrong Li; Ryota Omiya; Junichiro Fukutomi, Lead
Journal of Thermal Science, May 2014, [Reviewed] - Effect of blade outlet angle on unsteady hydrodynamic force of closed-type centrifugal pump with single blade
Yasuyuki Nishi; Junichiro Fukutomi, Lead, Hindawi Publishing Corporation
International Journal of Rotating Machinery, 2014, [Reviewed] - The flow field of undershot cross-flow water turbines based on PIV measurements and numerical analysis
Yasuyuki Nishi; Terumi Inagaki; Yanrong Li; Ryota Omiya; Kentaro Hatano, Lead, Turbomachinery Society of Japan
International Journal of Fluid Machinery and Systems, 2014, [Reviewed] - 小型ロケットエンジン用単段式ターボポンプの性能と内部流れ
西泰行; 塩幡宏規; 森作晃美; 宮城洋平; 野末辰裕, Lead, In the development of a turbopump for rocket engines, the cost is expensive and the period is too long. We apply the gas turbine of the turbocharger for cars of a consumer product to a turbine part, and propose the turbopump for small rocket engines which adopted as the pump part the single-stage turbopump which attained small size and simplification. The mixed-flow impeller, which is effective as the main impeller for suction performance, was used for this pump. Performance was optimized by carrying out ultra-high-speed rotation of the impeller. In this study, the pump performance, suction performance, and internal flow of two kinds of pumps with which blade angles differ were investigated by experiments and numerical analysis. The results showed that the head coefficient of impeller B was improved in comparison with that of impeller A at the design flow rate, thus satisfying the design requirement. However, the critical cavitation number of both impellers does not satisfy the design value. Since the channel is blockaded by a sheet cavity and the cloud cavity, the critical cavitation number of impeller B becomes larger than that of impeller A., Turbomachinery Society of Japan
ターボ機械, Jul. 2013, [Reviewed] - Study on instability characteristics of a mixed-flow pump of different blade loading distribution near the blade tip
Yasuyuki Nishi; Junichiro Fukutomi; Shunsuke Nakamura, Lead
Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, May 2013, [Reviewed] - 集水装置を有する軸流水車の開発に関する研究
西泰行; 稲垣照美; 大久保薫; 菊池伯夫, Lead
ターボ機械, Apr. 2013, [Reviewed] - Performance and internal flow of an undershot-type cross-flow water turbine
Yasuyuki Nishi; Terumi Inagaki; Ryota Omiya; Junichiro Fukutomi, Lead
Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Apr. 2013, [Reviewed] - Component analysis of unsteady hydrodynamic force of closed-type centrifugal impeller with single-blade
Yasuyuki Nishi; Junichiro Fukutomi; Masami Sakai, Lead
Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Dec. 2012, [Reviewed] - Study on unsteady hydrodynamic force of closed-type centrifugal pump with single-blade
Yasuyuki Nishi; Junichiro Fukutomi; Masami Sakai, Lead
Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Apr. 2012, [Reviewed] - Radial Thrust of Single-Blade Centrifugal Pump
Y. Nishi; J. Fukutomi and R. Fujiwara, Lead, Single-blade centrifugal pumps are widely used as sewage pumps. However, the impeller of a single-blade pump is subjected to strong radial thrust during pump operation because of the geometrical axial asymmetry of the impeller. Therefore, to improve pump reliability, it is necessary to quantitatively understand radial thrust and elucidate the behavior and mechanism of thrust generating. This study investigates the radial thrust acting up on a single-blade centrifugal impeller by conducting experiments and CFD analysis. The results show that the fluctuating component of radial thrust increases as the flow rate deviates from the design flow rate to low or high value. Radial thrust was modeled by a combination of three components, inertia, momentum, and pressure by applying an unsteady conservation of momentum to the impeller. The sum of these components agrees with the radial thrust calculated by integrating the pressure and the shearing stress on the impeller surface. The behavior of each component was shown, and the effects of each component on radial thrust were clarified. The pressure component has the greatest effect on the time-averaged value and the fluctuating component of radial thrust. The time-averaged value of the inertia component is nearly 0, irrespective of the change in the flow rate. However, its fluctuating component has a magnitude nearly comparable with the pressure component at a low flow rate and slightly decreased with the increase in flow rate., Turbomachinery Society of Japan, Korean Fluid Machinery Association, Chinese Society of Engineering Thermophysics, IAHR
International Journal of Fluid Machinery and Systems, Dec. 2011, [Reviewed] - 開水路に設置したクロスフロー水車に関する研究
西泰行; 稲垣照美; 近江谷亮太; 立川力; 小寺正雄; 福富純一郎, Lead
ターボ機械, Aug. 2011, [Reviewed] - Improvement of instability characteristics in a mixed-flow pump based on flow near blade tip
Yasuyuki Nishi; Junichiro Fukutomi; Toru Shigemitsu; Satoru Higashide, Lead
Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Jul. 2011, [Reviewed] - 座学／実学連結型学習プログラムにおける流体力学教材の開発と実践
西泰行; 稲垣照美; 小寺正雄, Lead, In this study, we have developed the fluid dynamics teaching materials in a learning program of connecting the lecture and the practical science based on the collaboration between industry and academia. Furthermore, we have practiced fluid dynamics education with these teaching materials and let students really experience the phenomenon of the fluid. As a result of questionnaires survey, many students thought that fluid dynamics was difficult at first. However, it was shown that the education with these teaching materials could let many students be interested in fluid dynamics., Japanese Society for Engineering Education
工学教育, Jul. 2011, [Reviewed] - Effect of the blade loading distribution near blade tip on internal flow and instability characteristics in a mixed-flow pump
Yasuyuki Nishi; Junichiro Fukutomi; Toru Shigemitsu; Satoru Higashide, Lead
Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Mar. 2011, [Reviewed] - 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
西泰行; 福富純一郎, Lead, The sewage pumps are demanded a high pump efficiency and a performance in passing foreign bodies. The authors developed the new type impeller which balanced high efficiency and high passage performance so far. However, the impeller used by these usages demands the large passing particle size (minimum particle size in the pump). Therefore, it is very important by the design of these pumps to understand the influence that impeller outlet width gives to pump performance and a radial thrust. This study examined the influence that the impeller outlet width of singleblade centrifugal impeller with a helical spiral suction flow channel gave to pump performance and a radial thrust experimentally. As a result, if impeller outlet width becomes large, time averaged radial thrust decrease at low flow rate, but fluctuating component of radial thrust increase, and fluctuating component of radial thrust does not change at high flow rate, but time averaged radial thrust increase. Therefore, it was made clear that the maximum of the radial thrust did not almost change at all flow rates., Turbomachinery Society of Japan
ターボ機械, Jan. 2011, [Reviewed] - 羽根出口角の異なる一枚羽根遠心ポンプの損失解析
西泰行; 藤原亮太; 福富純一郎, Lead, 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., The Japan Society of Mechanical Engineers
日本機械学会論文集(B編), Jan. 2010, [Reviewed] - 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
西泰行; 藤原亮太; 福富純一郎, Lead, 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., The Japan Society of Mechanical Engineers
日本機械学会論文集(B編), Dec. 2009, [Reviewed] - Design Method for Single-Blade Centrifugal Pump Impeller
Y. Nishi; R. Fujiwara and J. Fukutomi, Lead, 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., The Japan Society of Mechanical Engineers
Journal of Fluid Science and Technology, Dec. 2009, [Reviewed] - A Study of Performance and Internal Flow in a New Type of Sewage Pump
Y. Nishi and J. Fukutomi, Lead
International Journal of Fluid Machinery and Systems, Sep. 2009, [Reviewed] - A Study on Internal Flow in a New Type of Sewage Pump (1st Report, Comparison between Experiment and CFD Calculation)
Y. Nishi; N. Matsuo and J. Fukutomi, Lead, 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., The Japan Society of Mechanical Engineers
Journal of Fluid Science and Technology, Sep. 2009, [Reviewed] - A Study on Internal Flow in a New Type of Sewage Pump (2nd Report, Influence of Impeller Blade Loading and Volute Casing)
Y. Nishi; N. Matsuo and J. Fukutomi, Lead, 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., The Japan Society of Mechanical Engineers
Journal of Fluid Science and Technology, Sep. 2009, [Reviewed] - Loss Analysis of a New Type of Sewage Pump
Y. Nishi; N. Matsuo and J. Fukutomi, Lead, 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., The Japan Society of Mechanical Engineers
Journal of Environment and Engineering, Sep. 2009, [Reviewed] - 一枚羽根遠心ポンプのラジアルスラスト
西泰行; 藤原亮太; 福富純一郎, Lead
日本機械学会論文集(B編), Aug. 2009, [Reviewed] - 一枚羽根遠心羽根車の設計法に関する研究
西泰行; 藤原亮太; 福富純一郎, Lead, 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., The Japan Society of Mechanical Engineers
日本機械学会論文集(B編), Jun. 2009, [Reviewed] - 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)
西泰行; 松尾信明; 福富純一郎, Lead
日本機械学会論文集(B編), Jul. 2008, [Reviewed] - 汚水用新型ポンプに関する研究(内部流れとラジアルスラスト)
西泰行; 牧田晃一; 福富純一郎, Lead
ターボ機械, Dec. 2006, [Reviewed]
MISC
- 開水路流れを利用する集水装置付き軸流水車の開発に関する研究
西泰行
油空圧技術, Mar. 2021, [Invited]
Lead - Analysis of Free Surface Flow Patterns of Undershot Cross-Flow Water Turbines
Y. Yahagi; Y. Nishi; T. Inagaki; Y. Li; K. Hatano and T. Okazaki
Proceedings of the 13th Asian International Conference on Fluid Machinery, 10 Sep. 2015, [Reviewed] - Research on the Flow Field of Undershot Cross-Flow Water Turbines Using Experiments and Numerical Analysis
Y. Nishi; T. Inagaki; Y. Li; R. Omiya and K. Hatano
Proceedings of the 27th IAHR Symposium on Hydraulic Machinery and Systems, Sep. 2014, [Reviewed]
Lead - Visualization study on the flow field of an undershot cross-flow water turbine using PIV technique
Y. Li; Y. Nishi; T. Inagaki and K. Hatano
Proceedings of the 16th International Symposium on Flow Visualization, Jun. 2014, [Reviewed] - Radial and Axial Thrust of Closed-Type Centrifugal Pump with Single Blade
Y. Nishi; J. Fukutomi and M. Sakai
Proceedings of the 12th Asian International Conference on Fluid Machinery, Sep. 2013, [Reviewed]
Lead - Effect of Blade Outlet Angle on Radial Thrust of Single-Blade Centrifugal Pump
Y. Nishi; J. Fukutomi and R. Fujiwara
Proceedings of the 26th IAHR Symposium on Hydraulic Machinery and Systems, Aug. 2012, [Reviewed]
Lead - Radial Thrust of Single-Blade Centrifugal Pump
Y. Nishi; J. Fukutomi and R. Fujiwara
Proceedings of ASME-JSME-KSME Joint Fluids Engineering Conference, Jul. 2011, [Reviewed]
Lead - A Study on a New Type Sewage Pump
Y. Nishi; K. Makita and J. Fukutomi
Proceedings of the 8th Asian International Fluid Machinery Conference, Oct. 2005, [Reviewed]
Lead
Lectures, oral presentations, etc.
- 旋回流型マイクロバブル発生装置の気液二相流解析
大場 友裕; 西 泰行; 粉川 広行; 有吉 玄; 二川 正敏
日本機械学会2024年度茨城講演会, 30 Aug. 2024 - 新形式VTOLリフトファンの空力特性の多目的最適化
福山 雅文; 西 泰行; 佐伯 尚文; 大橋 光太郎; 奥 隆夫
日本機械学会2024年度茨城講演会, 30 Aug. 2024 - クローズド形一枚羽根遠心ポンプの最適化設計法に関する研究
小野 哲史; 西 泰行; 今野 渓人
日本機械学会2024年度茨城講演会, 30 Aug. 2024 - STUDY ON PERFORMANCE AND HYDRAULIC LOSSES OFCENTRIFUGAL PUMPS WITH IMPELLERS HAVING POROUSSTRUCTURE
Takeshi Konishi; Yasuyuki Hirano; Yasuyuki Nishi
16th World Congress on Computational Mechanics and 4th Pan American Congress on Computational Mechanics, 22 Jul. 2024 - 一枚羽根ポンプ逆転水車の性能と内部流れに及ぼす羽根入口角の影響
小野哲史,西泰行
日本機械学会2023年度茨城講演会, 18 Aug. 2023 - 多目的最適化手法による斜流ポンプの高性能化と不安定特性改善
磯崎由人,山﨑稜平,西泰行,茂木洋,萩原隆司
日本機械学会2023年度茨城講演会, 18 Aug. 2023 - 放射環状流路を有する羽根車を搭載したポンプの水力損失とその損失発生メカニズム
小西毅,平野康之,西泰行
日本流体力学会年会2022, 28 Sep. 2022 - 放射・環状流路羽根車を有する遠心式ポンプの内部流動と水力損失
小西毅,平野康之,西泰行
日本機械学会2022年度年次大会, 14 Sep. 2022 - 多段斜流ポンプの設計と性能に関する研究
山崎稜平,西泰行,茂木洋,萩原隆司
日本機械学会2022年度茨城講演会, 19 Aug. 2022 - クローズド形一枚羽根遠心ポンプのキャビテーション特性と内部流れに及ぼす流量の影響
今野渓人,西泰行,WANG CHUNQI
日本機械学会2022年度茨城講演会, 19 Aug. 2022 - 重力渦式水車の設計法に関する研究
齋藤健太,西泰行,安藤遼汰,稲垣照美
日本機械学会2022年度茨城講演会, 19 Aug. 2022 - 旋回流型マイクロバブル発生装置の流動特性の多目的最適化
内海優太,西泰行,粉川広行,二川正敏
日本機械学会2022年度茨城講演会, 19 Aug. 2022 - クローズド形一枚羽根遠心ポンプのキャビテーション特性と羽根車内流れに関する研究
WANG CHUNQI,西泰行
第99期日本機械学会流体工学部門講演会, 09 Nov. 2021 - 集水装置を有する軸流水車の羽根車および集水装置の多目的最適化
WEE YI HONG,西泰行,古賀広理,稲垣照美
第99期日本機械学会流体工学部門講演会, 08 Nov. 2021 - 一枚羽根ポンプ逆転水車の内部流れ構造と損失に関する研究
伊藤夏海,西泰行
日本機械学会2021年度年次大会, 06 Sep. 2021 - 開水路における集水装置を有する軸流水車の集水装置形状の4目的最適化による高出力・低軸推力化
WEE YI HONG,西泰行,古賀広理,稲垣照美
日本機械学会2021年度茨城講演会, 19 Aug. 2021 - クローズド形一枚羽根遠心ポンプにおける羽根車内流れ構造と水力損失に関する研究
WANG CHUNQI,西泰行,野地崇寛
日本機械学会2021年度茨城講演会, 19 Aug. 2021 - PIV計測と数値解析による一枚羽根ポンプ逆転水車の内部流れ
伊藤夏海,西泰行
日本機械学会2021年度茨城講演会, 19 Aug. 2021 - 羽根入口角の異なる一枚羽根ポンプ逆転水車に作用するラジアルスラストの成分分析
伊藤夏海,西泰行
第98期日本機械学会流体工学部門講演会, 11 Nov. 2020 - 渦巻タンクを有する重力渦式水車の性能と流れ場に及ぼす羽根枚数の影響
安藤遼汰,西泰行,助森大地,稲垣照美
第98期日本機械学会流体工学部門講演会, 11 Nov. 2020 - 放射周状流路を有する遠心羽根車のポンプ性能と水力損失に関する研究
小西毅,平野康之,西泰行
日本機械学会2020年度年次大会, 16 Sep. 2020 - 一枚羽根ポンプ逆転水車のラジアルスラストに及ぼす羽根入口角の影響
伊藤夏海,西泰行
日本機械学会2020年度年次大会, 16 Sep. 2020 - 直線羽根を有する下掛け式クロスフロー水車の自由表面流れと性能に及ぼす羽根枚数の影響
谷萩雄一朗; 西泰行; 進藤幹広; 鈴木亮太; 稲垣照美
日本機械学会2020年度年次大会, 16 Sep. 2020 - 渦巻タンクを有する重力渦式水車の性能と流れ場に及ぼす流量の影響
安藤遼汰,西泰行,助森大地,稲垣照美
日本機械学会2020年度年次大会, 16 Sep. 2020 - 重力渦式水車の性能と水力損失に及ぼす羽根枚数の影響
安藤遼汰,西泰行,助森大地,稲垣照美
日本機械学会2020年度茨城講演会, 21 Aug. 2020 - 一枚羽根ポンプ逆転水車のラジアルスラストの計測と数値解析
伊藤夏海,西泰行
日本機械学会2020年度茨城講演会, 21 Aug. 2020 - 放射・周状流路を有する羽根車のポンプ性能に関する研究
小西毅; 平野康之; 西泰行
日本機械学会2019年度年次大会, 10 Sep. 2019 - オープン形一枚羽根遠心ポンプにおけるケーシング内の流れ構造に関する研究
森章紘; 西泰行; 野地崇寛
日本機械学会2019年度茨城講演会, 22 Aug. 2019 - 集水装置を有する軸流水車の集水装置形状の多目的最適化
古賀広理; 西泰行; 笹下紘利; 稲垣照美; 菊池伯夫
日本機械学会2019年度茨城講演会, 22 Aug. 2019 - 直線羽根を有する下掛け式クロスフロー水車の性能と流れ場に及ぼす羽根角度の影響
進藤幹広; 西泰行; 谷萩雄一朗; 鈴木亮太; 稲垣照美
日本機械学会2019年度茨城講演会, 22 Aug. 2019 - 小型プロペラ形風車の空力騒音に関する研究
川島卓也; 西泰行; 稲垣照美
日本機械学会2019年度茨城講演会, 22 Aug. 2019 - 薄型多翼ファンの騒音特性に関する研究
古内薫; 西泰行
日本機械学会関東支部第25期総会・講演会, 19 Mar. 2019 - 一枚羽根ポンプ逆転水車のラジアルスラストに関する研究
吉澤優介; 西泰行
日本機械学会関東支部第25期総会・講演会, 19 Mar. 2019 - タンク形状が重力渦式水車の性能と流れ場に及ぼす影響
助森大地; 西泰行; 稲垣照美
日本機械学会関東支部第25期総会・講演会, 19 Mar. 2019 - 曲線羽根を用いた下掛け水車の性能と流れ場に関する研究
谷萩雄一朗; 西泰行; 鈴木亮太; 稲垣照美
第80回ターボ機械協会東北講演会, 12 Oct. 2018 - 重力渦式水車の流れ場と水力損失に及ぼす流量の影響
助森大地; 西泰行; 鈴尾亮太; 稲垣照美
第80回ターボ機械協会東北講演会, 12 Oct. 2018 - 非設計点におけるクローズド形一枚羽根遠心ポンプのケーシング内の流れ構造
野地崇寛; 西泰行
第80回ターボ機械協会東北講演会, 12 Oct. 2018 - 多孔質羽根車を用いた遠心ポンプの設計と性能予測
小西毅; 平野康之; 西泰行
日本機械学会2018年度年次大会, 10 Sep. 2018 - 歯科用エアタービンの性能に及ぼす羽根枚数の影響
伏見輝; 西泰行; 下村和男; 佐藤嶺至; 長谷川健嗣
日本機械学会2018年度茨城講演会, 22 Aug. 2018 - クローズド形一枚羽根遠心ポンプにおけるケーシング内の流れ構造に関する研究
野地崇寛; 西泰行
日本機械学会2018年度茨城講演会, 22 Aug. 2018 - 重力渦式水車の損失解析
助森大地; 西泰行; 鈴尾亮太; 稲垣照美
日本機械学会2018年度茨城講演会, 22 Aug. 2018 - 集水装置を有する軸流水車の性能特性に及ぼす流量の影響
笹下紘利; 西泰行; 塩原大史; 稲垣照美; 菊池伯夫
日本機械学会2018年度茨城講演会, 22 Aug. 2018 - 歯科用エアタービンのノズル形状の最適化
伏見輝; 西泰行; 下村和男; 長谷川健嗣
日本機械学会関東支部第24期総会・講演会, 17 Mar. 2018 - 超小型軸流水車内の流れ構造に関する研究
小堀智之; 西 泰行; 森 望美; 稲垣照美; 菊池伯夫
日本機械学会関東支部第24期総会・講演会, 17 Mar. 2018 - クローズド形一枚羽根遠心ポンプの非定常内部流れに関する研究
野地崇寛; 西泰行; 稲葉凱
日本機械学会関東支部第24期総会・講演会, 17 Mar. 2018 - 直線羽根を用いた下掛け式クロスフロー水車の性能分析
鈴木亮太; 西泰行; 谷萩雄一朗; 岡﨑貴司; 稲垣照美
日本機械学会2017年度茨城講演会, 29 Aug. 2017 - 重力渦式水車の性能に及ぼす羽根枚数の影響
鈴尾亮太; 西泰行; 稲垣照美
日本機械学会2017年度茨城講演会, 29 Aug. 2017 - 障害物を有する薄型多翼ファンの流れ場と性能に関する研究
藤川寛文; 西泰行; 西村展一
日本機械学会2017年度茨城講演会, 29 Aug. 2017 - 歯科用エアタービンハンドピースの内部流れと性能に関する研究
伏見輝; 西泰行; 下村和男; 長谷川健嗣
日本機械学会2017年度茨城講演会, 29 Aug. 2017 - 超小型軸流水車の最適化設計
森望美; 西泰行; 小堀智之; 稲垣照美; 菊池伯夫
第77回ターボ機械協会総会講演会, 19 May 2017 - PIV計測とCFDによるクローズド形一枚羽根遠心ポンプの内部流れ
野地崇寛; 西泰行; 稲葉凱
第77回ターボ機械協会総会講演会, 19 May 2017 - クローズド形一枚羽根遠心ポンプ内のキャビテーション流れの可視化
稲葉凱; 西泰行
可視化情報全国講演会（日立2016）, 08 Oct. 2016 - 流量変化が重力渦式水車の流れ場に及ぼす影響
鈴尾亮太; 西泰行; 稲垣照美
可視化情報全国講演会（日立2016）, 08 Oct. 2016 - 超小型軸流水車内の異物の挙動の可視化
小堀智之; 西泰行; 小林泰; 稲垣照美; 菊池伯夫
可視化情報全国講演会（日立2016）, 08 Oct. 2016 - 流量変化時の下掛け式クロスフロー水車の流れ場
岡﨑貴司; 西泰行; 谷萩雄一朗; 稲垣照美
可視化情報全国講演会（日立2016）, 08 Oct. 2016 - 自由表面流れ場における集水装置を有する軸流水車の後流特性
佐藤元紀; 西泰行; 塩原大史; 稲垣照美; 菊池伯夫
可視化情報全国講演会（日立2016）, 08 Oct. 2016 - 集水装置を有する軸流水車の性能と流れ場に及ぼすつばの影響
塩原大史; 西泰行; 佐藤元紀; 稲垣照美; 菊池伯夫
可視化情報全国講演会（日立2016）, 08 Oct. 2016 - 下掛け式クロスフロー水車の流量変化時の性能分析
岡﨑貴司; 西泰行; 谷萩雄一朗; 稲垣照美
第76回ターボ機械協会北見講演会, 30 Sep. 2016 - 開水路における軸流水車の性能特性と流れ場
佐藤元紀; 西泰行; 塩原大史; 稲垣照美; 菊池伯夫
第76回ターボ機械協会北見講演会, 30 Sep. 2016 - 下掛け式クロスフロー水車の性能解析
岡﨑貴司; 西泰行; 谷萩雄一朗; 稲垣照美
第75回ターボ機械協会総会講演会, 20 May 2016 - 集水装置を有する軸流水車の自由表面流れ場における性能特性
佐藤元紀; 西泰行; 稲垣照美; 塩原大史; 菊池伯夫
第75回ターボ機械協会総会講演会, 20 May 2016 - 重力渦式水車の性能に及ぼす流量の影響
綿引宏之; 西泰行; 稲垣照美
日本機械学会関東支部第22期総会・講演会, 11 Mar. 2016 - 高度化手法による下掛け式クロスフロー水車の自由表面流れの解明
谷萩雄一朗; 西泰行; 稲垣照美; 李艶栄; 秦野健太郎; 岡﨑貴司
第93期日本機械学会流体工学部門講演会, 08 Nov. 2015 - 衝突損失低減に着目した下掛け式クロスフロー水車の高性能化
岡﨑貴司; 西泰行; 稲垣照美; 李艶栄; 谷萩雄一朗; 秦野健太郎
第93期日本機械学会流体工学部門講演会, 08 Nov. 2015 - PIV計測と数値解析による集水装置を有する軸流水車の流れ場
佐藤元紀; 西泰行; 稲垣照美; 李艶栄; 平間壮; 菊池伯夫
第93期日本機械学会流体工学部門講演会, 08 Nov. 2015 - 集水装置を有する軸流水車の自由表面を考慮した数値解析
佐藤元紀; 西泰行; 稲垣照美; 李艶栄; 平間壮; 菊池伯夫
日本機械学会2015年度茨城講演会, 28 Aug. 2015 - 超小型軸流水車の軸流速度均一化に着目した設計法に関する研究
小林泰; 西泰行; 稲垣照美; 李艶栄; 平間壮; 菊池伯夫
日本機械学会2015年度茨城講演会, 28 Aug. 2015 - 重力渦式水車の流れ場に関する研究
種村知昭; 西泰行; 稲垣照美; 李艶栄; 尾畑宏
日本機械学会2015年度茨城講演会, 28 Aug. 2015 - 直線羽根を用いた下掛け式クロスフロー水車の性能に及ぼす羽根角度の影響
岡﨑貴司; 西泰行; 稲垣照美; 李艶栄; 谷萩雄一朗; 秦野健太郎
日本機械学会2015年度茨城講演会, 28 Aug. 2015 - 重力渦式水車に関する研究
西泰行; 稲垣照美; 李艶栄; 尾畑宏
第73回ターボ機械協会総会講演会, 08 May 2015 - クローズド形一枚羽根遠心ポンプの異物通過性に関する研究
尾崎成憲; 西泰行
日本機械学会関東支部第21期総会・講演会, 21 Mar. 2015 - 超小型軸流水車の設計と性能に関する研究
小林泰; 西泰行; 稲垣照美; 李艶栄; 菊池伯夫
日本機械学会関東支部第21期総会・講演会, 21 Mar. 2015 - 小型プロペラ形風車の設計法に関する研究
山下裕介; 西泰行; 稲垣照美; 李艶栄
第24回環境工学総合シンポジウム2014, 18 Nov. 2014 - 集水装置を有する軸流水車の自由表面流れ解析
平間壮; 西泰行; 稲垣照美; 李艶栄; 菊池伯夫
第24回環境工学総合シンポジウム2014, 18 Nov. 2014 - PIV計測と数値解析による下掛け式クロスフロー水車の流れ場
秦野健太郎; 西泰行; 稲垣照美; 李艶栄; 近江谷亮太
第92期日本機械学会流体工学部門講演会, 25 Oct. 2014 - 集水装置を有する軸流水車に関する実験的研究
平間壮; 西泰行; 稲垣照美; 李艶栄; 菊池伯夫
第92期日本機械学会流体工学部門講演会, 25 Oct. 2014 - 下掛け式クロスフロー水車の性能と流れ場に及ぼす羽根枚数の影響
秦野健太郎; 西泰行; 稲垣照美; 李艶栄; 谷萩雄一朗
日本機械学会2014年度茨城講演会, 05 Sep. 2014 - 集水装置を有する軸流水車の非定常流れ解析
平間壮; 大久保薫; 西泰行; 稲垣照美; 李艶栄; 菊池伯夫
日本機械学会2014年度茨城講演会, 05 Sep. 2014 - 下掛け式クロスフロー水車の性能に及ぼす羽根枚数の影響
秦野健太郎; 西泰行; 稲垣照美; 李艶栄; 福富純一郎
日本機械学会関東支部第20期総会・講演会, 15 Mar. 2014 - オープン形一枚羽根遠心ポンプの性能特性とラジアルスラスト
村田薫; 西泰行; 福富純一郎
日本機械学会関東支部第20期総会・講演会, 15 Mar. 2014 - 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
手島誠矢; 福富純一郎; 重光亨; 西泰行
第91期日本機械学会流体工学部門講演会, 10 Nov. 2013 - 直線羽根を用いた下掛け式クロスフロー水車の性能に及ぼす流量の影響
秦野健太郎; 西泰行; 稲垣照美; 近江谷亮太; 福富純一郎
第91期日本機械学会流体工学部門講演会, 09 Nov. 2013 - PIVによる下掛け式クロスフロー水車周りの流れ場計測
秦野健太郎; 西泰行; 李艶栄; 稲垣照美; 近江谷亮太; 福富純一郎
第70回ターボ機械協会信州講演会, 13 Sep. 2013 - 集水装置を有する軸流水車への逆テーパ形ブレードの適用
大久保薫; 西泰行; 稲垣照美; 平間壮; 菊池伯夫
第70回ターボ機械協会信州講演会, 13 Sep. 2013 - 直線羽根を用いた下掛け式クロスフロー水車の性能と内部流れ
秦野健太郎; 近江谷亮太; 西泰行; 稲垣照美; 福富純一郎
日本機械学会2013年度年次大会, 11 Sep. 2013 - 直線羽根を用いた下掛け式クロスフロー水車に関する研究
秦野健太郎; 西泰行; 稲垣照美; 近江谷亮太; 福富純一郎
日本機械学会2013年度茨城講演会, 06 Sep. 2013 - 集水装置を有する軸流水車の性能に及ぼす羽根枚数の影響
大久保薫; 西泰行; 稲垣照美; 平間壮; 菊池伯夫
日本機械学会2013年度茨城講演会, 06 Sep. 2013 - 集水装置を有する軸流水車の高性能化に関する研究
平間壮; 西泰行; 稲垣照美; 大久保薫; 菊池伯夫
日本機械学会2013年度茨城講演会, 06 Sep. 2013 - 逆テーパ形ブレードを有する水平軸風車に関する研究
山下裕介; 西泰行; 稲垣照美
日本機械学会2013年度茨城講演会, 06 Sep. 2013 - クローズド形一枚羽根遠心ポンプの変動流体力に及ぼす羽根出口角の影響
西泰行; 福富純一郎; 酒井將実
第69回ターボ機械協会総会講演会, 24 May 2013 - 下掛け式クロスフロー水車の内部流れに及ぼす流量の影響
近江谷亮太; 西泰行; 稲垣照美; 福富純一郎
第90期日本機械学会流体工学部門講演会, 18 Nov. 2012 - 小型ロケットエンジン用単段式ターボポンプの性能と内部流れ
西泰行; 塩幡宏規; 森作晃美; 宮城洋平; 野末辰裕
第68回ターボ機械協会沖縄講演会, 20 Sep. 2012 - 集水装置を備えた軸流水車の開発
岩本浩信; 西泰行; 稲垣照美; 大久保薫; 菊池伯夫
日本機械学会2012年度年次大会, 11 Sep. 2012 - 汚水用遠心ポンプの変動流体力に関する研究
手島誠矢; 福富純一郎; 重光亨; 西泰行
日本機械学会2012年度年次大会, 10 Sep. 2012 - クローズド形一枚羽根遠心ポンプの変動流体力に及ぼすライナリング隙間の影響
酒井將実; 西泰行; 福富純一郎
日本機械学会2012年度茨城講演会, 24 Aug. 2012 - 下掛け式クロスフロー水車の非設計点における内部流れ
近江谷亮太; 西泰行; 稲垣照美; 福富純一郎
日本機械学会2012年度茨城講演会, 24 Aug. 2012 - 超高速・小型ターボポンプの性能と内部流れに関する研究
森作晃美; 宮城洋平; 西泰行; 塩幡宏規; 野末辰裕
日本機械学会2012年度茨城講演会, 24 Aug. 2012 - 集水装置を有する軸流水車に関する研究
大久保薫; 岩本浩信; 西泰行; 稲垣照美; 菊池伯夫
日本機械学会2012年度茨城講演会, 24 Aug. 2012 - 下掛け式クロスフロー水車の内部流れ
西泰行; 稲垣照美; 近江谷亮太; 福富純一郎
第67回ターボ機械協会総会講演会, 25 May 2012 - 下掛け式クロスフロー水車の内部流れに関する研究
近江谷亮太; 西泰行; 稲垣照美; 立川力; 小寺正雄; 福富純一郎
日本機械学会関東支部第18期総会講演会, 10 Mar. 2012 - クローズド形一枚羽根遠心ポンプのアキシャルスラストに関する研究
酒井將実; 西泰行; 福富純一郎
日本機械学会関東支部第18期総会講演会, 10 Mar. 2012 - 翼端羽根負荷分布の異なる斜流ポンプの不安定特性に関する研究
中村俊介; 西泰行; 福富純一郎; 重光亨; 東出暁
日本機械学会関東支部第18期総会講演会, 10 Mar. 2012 - 開水路用超低落差水車に関する研究
近江谷亮太; 西泰行; 稲垣照美; 立川力; 小寺正雄; 福富純一郎
日本機械学会2011年度茨城講演会, 26 Aug. 2011 - 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
酒井將実; 西泰行; 福富純一郎
日本機械学会2011年度茨城講演会, 26 Aug. 2011 - 開水路に設置したクロスフロー水車に関する研究
西泰行; 稲垣照美; 近江谷亮太; 立川力; 小寺正雄; 福富純一郎
第65回ターボ機械協会総会講演会, 20 May 2011 - 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
東出暁; 福富純一郎; 重光亨; 西泰行
日本機械学会中国四国支部第49期総会・講演会, 05 Mar. 2011 - 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
東出暁; 福富純一郎; 重光亨; 西泰行
日本機械学会中国四国支部・九州支部合同企画徳島講演会, 16 Oct. 2010 - 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
西泰行; 藤原亮太; 堀田義圭; 福富純一郎; 重光亨
第87期日本機械学会流体工学部門講演会, 07 Nov. 2009 - 一枚羽根遠心ポンプのラジアルスラストに関する研究
堀田義圭; 藤原亮太; 西泰行; 福富純一郎; 重光亨
日本機械学会2009年度年次大会, 16 Sep. 2009 - 高比速度斜流ポンプに関する研究
岩佐浩行; 福富純一郎; 重光亨; 西泰行
日本機械学会中四国支部第47期総会・講演会, 06 Mar. 2009 - 一枚羽根遠心羽根車の設計法に関する研究
藤原亮太; 西泰行; 福富純一郎; 重光亨
日本機械学会2008年度年次大会, 05 Aug. 2008 - クローズド形一枚羽根遠心羽根車のポンプ性能に及ぼす比速度の影響
舩坂新; 西泰行; 榎本純也; 安藤昭宏
日本機械学会2008年度年次大会, 05 Aug. 2008 - 汚水用新型ポンプの損失解析
西泰行; 福富純一郎; 松尾信明; 藤原亮太; 重光亨
第59回ターボ機械協会総会講演会, 16 May 2008 - 汚水用新型ポンプの内部流れに関する研究
西泰行; 福富純一郎; 松尾信明; 藤原亮太; 重光亨
日本機械学会2007年度年次大会, 10 Sep. 2007 - 汚水用新型ポンプに関する研究（内部流れとラジアルスラスト）
西泰行; 牧田晃一; 福富純一郎
第84期日本機械学会流体工学部門講演会, 29 Oct. 2006 - 汚水用新型ポンプに関する研究
西泰行; 牧田晃一; 福富純一郎
第83期日本機械学会流体工学部門講演会, 29 Oct. 2005 - 汚水用新型ポンプに関する研究
西泰行; 牧田晃一; 福富純一郎
日本機械学会2005年度年次大会, 22 Sep. 2005 - 新型汚水用水中ポンプの開発
西泰行; 竹部力; 玉置陽一; 安藤昭宏; 舩坂新
第42回下水道研究発表会, Jul. 2005 - 中空流路を有する三杯形風車の開発に関する研究
中瀬敬之; 西泰行; 中島俊介; 松本鉄太郎
日本機械学会2001年度年次大会, Aug. 2001
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