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Tomoki Kawakubo
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Journal Articles

Stability Improvement of a Turbocharger Centrifugal Compressor by a Nonaxisymmetric Vaned Diffuser

Xinqian Zheng, Zhenzhong Sun, Tomoki Kawakubo, Hideaki Tamaki
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2018, 140(4): 041007.
Paper No: TURBO-16-1101
https://doi.org/10.1115/1.4038875
Published Online: February 13, 2018
View Article titled, Stability Improvement of a Turbocharger Centrifugal Compressor by a Nonaxisymmetric Vaned Diffuser
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Topics: Compressors, Diffusers, Flow (Dynamics), Pressure, Stability, Design, Turbochargers, Computational fluid dynamics, Flow control
Proceedings Papers

Numerical Investigation of Unsteady Shock Wave Motion in a Transonic Centrifugal Compressor

Richard Amankwa Adjei, Weizhe Wang, Jishen Jiang, Yingzheng Liu, Tomoki Kawakubo
Proc. ASME. GT2017, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A012, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63887
https://doi.org/10.1115/GT2017-63887
View Paper titled, Numerical Investigation of Unsteady Shock Wave Motion in a Transonic Centrifugal Compressor
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Topics: Compressors, Shock waves, Shock (Mechanics), Diffusers, Flow (Dynamics), Impellers, Pressure, Boundary layers, Automotive engines, Blades
Proceedings Papers

Performance Improvement of Multistage Centrifugal Compressor With Low Flow-Rate Stages Based on Factory Acceptance Test Data

Hideaki Tamaki, Tomoki Kawakubo, Masaru Unno, Shinji Abe, Kanji Majima
Proc. ASME. GT2014, Volume 2D: Turbomachinery, V02DT42A006, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25156
https://doi.org/10.1115/GT2014-25156
View Paper titled, Performance Improvement of Multistage Centrifugal Compressor With Low Flow-Rate Stages Based on Factory Acceptance Test Data
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Topics: Compressors, Flow (Dynamics), Databases, Rotor vibration, Design, Flow instability
Proceedings Papers

Feasibility Study of a Gas Turbine at Micro Scale

Kousuke Isomura, Motohide Murayama, Tomoki Kawakubo
Proc. ASME. GT2001, Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V002T04A012, June 4–7, 2001
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0101
https://doi.org/10.1115/2001-GT-0101
View Paper titled, Feasibility Study of a Gas Turbine at Micro Scale
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Topics: Gas turbines, Compressors, Impellers, Combustion chambers, Cycles, Heat, Microscale devices
Proceedings Papers

Stability Improvement of Turbocharger Centrifugal Compressor by Asymmetric Vaneless Diffuser Treatment

Xinqian Zheng, Yun Lin, Weilin Zhuge, Yangjun Zhang, Hideaki Tamaki, Tomoki Kawakubo
Proc. ASME. GT2013, Volume 6C: Turbomachinery, V06CT40A006, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94705
https://doi.org/10.1115/GT2013-94705
View Paper titled, Stability Improvement of Turbocharger Centrifugal Compressor by Asymmetric Vaneless Diffuser Treatment
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Topics: Compressors, Stability, Turbochargers, Vaneless diffusers, Diffusers, Flow (Dynamics), Design, Pressure, Computer simulation, Engineering prototypes
Proceedings Papers

Unsteady Rotor-Stator Interaction of a Radial-Inflow Turbine With Variable Nozzle Vanes

Tomoki Kawakubo
Proc. ASME. GT2010, Volume 7: Turbomachinery, Parts A, B, and C, 2075-2084, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23677
https://doi.org/10.1115/GT2010-23677
View Paper titled, Unsteady Rotor-Stator Interaction of a Radial-Inflow Turbine With Variable Nozzle Vanes
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Topics: Inflow, Nozzles, Rotors, Stators, Turbines, Blades, Impellers, Flow (Dynamics), Excitation, Shock waves
Proceedings Papers

Aerodynamic Design to Increase Pressure Ratio of Centrifugal Compressors for Turbochargers

Hideaki Tamaki, Masaru Unno, Tomoki Kawakubo, Yutaka Hirata
Proc. ASME. GT2009, Volume 7: Turbomachinery, Parts A and B, 1171-1184, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59160
https://doi.org/10.1115/GT2009-59160
View Paper titled, Aerodynamic Design to Increase Pressure Ratio of Centrifugal Compressors for Turbochargers
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Topics: Compressors, Design, Pressure, Turbochargers, Impellers, Blades, Diffusers, Mach number, Design methodology, Diesel engines
Proceedings Papers

Prediction of Surface Roughness Effects on Centrifugal Compressor Performance

Tomoki Kawakubo, Ryusuke Numakura, Kanji Majima
Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 1131-1138, August 10–14, 2008
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2008-55078
https://doi.org/10.1115/FEDSM2008-55078
View Paper titled, Prediction of Surface Roughness Effects on Centrifugal Compressor Performance
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Topics: Compressors, Computational fluid dynamics, Surface roughness
Proceedings Papers

A Fast Method for Conjugate Heat Transfer Analysis of Centrifugal Compressor

Vai-Man Lei, Tomoki Kawakubo
Proc. ASME. IMECE2007, Volume 8: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A and B, 699-706, November 11–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2007-41368
https://doi.org/10.1115/IMECE2007-41368
View Paper titled, A Fast Method for Conjugate Heat Transfer Analysis of Centrifugal Compressor
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Topics: Compressors, Heat transfer, Impellers, Flow (Dynamics), Computation, Design, Temperature, Temperature distribution