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Koichi Nishibe
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Journal Articles

Experimental Study on Airflow Upwash and Control of Thrust Increase Induced by Ceiling Effect on Microrotor

Koichi Nishibe, Yusuke Koizumi, Kazuma Sekiguchi
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2024, 146(1): 011203.
Paper No: FE-23-1249
https://doi.org/10.1115/1.4063331
Published Online: October 3, 2023
View Article titled, Experimental Study on Airflow Upwash and Control of Thrust Increase Induced by Ceiling Effect on Microrotor
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Topics: Air flow, Blades, Ceilings, Rotors, Thrust, Pressure, Flow (Dynamics)
Proceedings Papers

A Study on the Oil Film Thickness Between the Lower Rail of Oil Control Ring and Lower Flank of Oil Control Ring Groove of an Engine

Ken Miura, Akemi Ito, Yuta Nakamura, Rina Yamada, Koichi Nishibe, Miyuki Usui, Naoki Iijima
Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T07A004, October 16–19, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2022-90881
https://doi.org/10.1115/ICEF2022-90881
View Paper titled, A Study on the Oil Film Thickness Between the Lower Rail of Oil Control Ring and Lower Flank of Oil Control Ring Groove of an Engine
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Topics: Engines, Film thickness, Rails, Friction, Pressure, Combustion chambers, Engine design, Flow (Dynamics), Fluorescence, Internal combustion engines
Journal Articles

Performance Degradation and Flow Instability of Axial-Flow Fan Due to Upstream Obstacle

Donghyuk Kang, Takeru Shinohara, Shinsaku Nakamura, Koichi Nishibe, Kotaro Sato, Kazuhiko Yokota, Hiroshi Ohue
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. September 2020, 142(9): 091207.
Paper No: FE-20-1086
https://doi.org/10.1115/1.4047535
Published Online: July 13, 2020
View Article titled, Performance Degradation and Flow Instability of Axial-Flow Fan Due to Upstream Obstacle
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Topics: Computational fluid dynamics, Flow (Dynamics), Flow instability, Pressure, Axial flow
Journal Articles

Vector Control of Synthetic Jets Using an Asymmetric Slot

Ryota Kobayashi, Koichi Nishibe, Yusuke Watabe, Kotaro Sato, Kazuhiko Yokota
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2018, 140(5): 051102.
Paper No: FE-17-1223
https://doi.org/10.1115/1.4038660
Published Online: January 9, 2018
View Article titled, Vector Control of Synthetic Jets Using an Asymmetric Slot
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Topics: Computer simulation, Flow (Dynamics), Jets, Vortices, Wire, Smoke
Proceedings Papers

Self-Excited Vibration of a Flat Plate With a Hole for Water Flow

Kosuke Takahashi, Fujio Hiroki, Kotaro Sato, Koichi Nishibe
Proc. ASME. FEDSM2016, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics, V01BT14A007, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2016-7645
https://doi.org/10.1115/FEDSM2016-7645
View Paper titled, Self-Excited Vibration of a Flat Plate With a Hole for Water Flow
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Topics: Flat plates, Flow (Dynamics), Vibration, Water, Machinery, Turbochargers, Accidents, Fluids, Geometry, Hydraulic equipment
Proceedings Papers

Vector Control of Synthetic Jets Using an Asymmetric Slot

Ryota Kobayashi, Koichi Nishibe, Yusuke Watabe, Kotaro Sato, Kazuhiko Yokota
Proc. ASME. FEDSM2016, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics, V01BT14A008, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2016-7648
https://doi.org/10.1115/FEDSM2016-7648
View Paper titled, Vector Control of Synthetic Jets Using an Asymmetric Slot
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Topics: Jets, Wire, Actuators, Flow (Dynamics), Flow visualization, Probes, Shapes, Smoke, Velocity measurement
Proceedings Papers

Study on Flow Around a Rectangular Cylinder With an Asymmetric Slot for Synthetic Jets

Nobuhiro Kobayashi, Koichi Nishibe, Yusuke Watabe, Kotaro Sato, Kazuhiko Yokota
Proc. ASME. FEDSM2016, Volume 1A, Symposia: Turbomachinery Flow Simulation and Optimization; Applications in CFD; Bio-Inspired and Bio-Medical Fluid Mechanics; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES and Hybrid RANS/LES Methods; Fluid Machinery; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Active Fluid Dynamics and Flow Control — Theory, Experiments and Implementation, V01AT13A008, July 10–14, 2016
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2016-7647
https://doi.org/10.1115/FEDSM2016-7647
View Paper titled, Study on Flow Around a Rectangular Cylinder With an Asymmetric Slot for Synthetic Jets
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Topics: Cylinders, Flow (Dynamics), Jets, Ducts, Fluids, Geometry, Machinery
Proceedings Papers

A Study on the Coanda Effect and the Thrust Characteristics of Synthetic Jets

Takahiro Iwasaki, Koichi Nishibe, Kotaro Sato, Kazuhiko Yokota, Donghyuk Kang
Proc. ASME. FEDSM2014, Volume 1B, Symposia: Fluid Machinery; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows, V01BT10A016, August 3–7, 2014
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2014-21250
https://doi.org/10.1115/FEDSM2014-21250
View Paper titled, A Study on the Coanda Effect and the Thrust Characteristics of Synthetic Jets
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Topics: Jets, Thrust, Flow (Dynamics), Computer simulation, Trajectories (Physics), Vortices
Proceedings Papers

Flow Characteristics Downstream of Swirl Flow Generators

Takanori Nakazawa, Masanori Kudo, Koichi Nishibe, Kotaro Sato
Proc. ASME. FEDSM2014, Volume 1B, Symposia: Fluid Machinery; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows, V01BT10A026, August 3–7, 2014
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2014-21431
https://doi.org/10.1115/FEDSM2014-21431
View Paper titled, Flow Characteristics Downstream of Swirl Flow Generators
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Topics: Flow (Dynamics), Generators, Unsteady flow, Circular cylinders, Computer simulation, Flat plates, Fluctuations (Physics), Inlet guide vanes, Momentum, Numerical analysis
Proceedings Papers

Study on Flow Characteristics Downstream of Annular Inlet Guide Vanes

Masanori Kudo, Koichi Nishibe, Masayuki Takahashi, Kotaro Sato, Yoshinobu Tsujimoto
Proc. ASME. FEDSM2013, Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics, V01BT10A008, July 7–11, 2013
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2013-16102
https://doi.org/10.1115/FEDSM2013-16102
View Paper titled, Study on Flow Characteristics Downstream of Annular Inlet Guide Vanes
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Topics: Flow (Dynamics), Inlet guide vanes, Flow instability, Oscillations, Unsteady flow, Computer simulation, Fluctuations (Physics), Pressure
Proceedings Papers

Study on the Flow Characteristics of Synthetic Jets Near a Rigid Plane Boundary

Ryota Tsunoda, Koichi Nishibe, Yuki Fujita, Kotaro Sato, Kazuhiko Yokota, Toru Koso
Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 2993-2998, July 24–29, 2011
Publisher: American Society of Mechanical Engineers
Paper No: AJK2011-16032
https://doi.org/10.1115/AJK2011-16032
View Paper titled, Study on the Flow Characteristics of Synthetic Jets Near a Rigid Plane Boundary
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Topics: Flow (Dynamics), Jets, Computer simulation, Flow separation, Flow visualization, Reynolds number, Smoke, Wire