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Journal Articles

Unsteady Flow Structure of Rotating Instability in a 1.5-Stage Axial Compressor

Nobumichi Fujisawa, Yutaka Ohta, Mai Yamagami, Takashi Goto, Dai Kato
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2025, 147(4): 041010.
Paper No: TURBO-24-1247
https://doi.org/10.1115/1.4066814
Published Online: October 25, 2024
View Article titled, Unsteady Flow Structure of Rotating Instability in a 1.5-Stage Axial Compressor
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Topics: Blades, Compressors, Flow (Dynamics), Leakage, Pressure, Rotors, Unsteady flow, Vortices, Clearances (Engineering), Computational fluid dynamics
Proceedings Papers

Unsteady Flow Structure of Rotating Instability in a 1.5-Stage Axial Compressor

Nobumichi Fujisawa, Yutaka Ohta, Mai Yamagami, Takashi Goto, Dai Kato
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122609
https://doi.org/10.1115/GT2024-122609
View Paper titled, Unsteady Flow Structure of Rotating Instability in a 1.5-Stage Axial Compressor
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Topics: Compressors, Unsteady flow
Proceedings Papers

Distortion Transfer in Multi-Stage Compressor and Modeling of Spool-Coupling Problem With Circumferentially Distorted Inflow

Ryuichi Okada, Takeshi Murooka, Dai Kato
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A015, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101861
https://doi.org/10.1115/GT2023-101861
View Paper titled, Distortion Transfer in Multi-Stage Compressor and Modeling of Spool-Coupling Problem With Circumferentially Distorted Inflow
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Topics: Compressors, Engines, Inflow, Modeling
Proceedings Papers

Effect of Turbulence Model on the Prediction of Performance and Span-Wise Mixing in High-Speed Highly-Loaded Multi-Stage Axial-Flow Compressor

Takashi Goto, Tetsuya Oshio, Naoki Tani, Mizuho Aotsuka, Guillaume Pallot, Dai Kato
Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT39A022, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91141
https://doi.org/10.1115/GT2019-91141
View Paper titled, Effect of Turbulence Model on the Prediction of Performance and Span-Wise Mixing in High-Speed Highly-Loaded Multi-Stage Axial-Flow Compressor
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Topics: Axial flow, Compressors, Turbulence, Simulation, Flow (Dynamics), Eddies (Fluid dynamics), Temperature, Anisotropy, Clearances (Engineering), Computation
Proceedings Papers

Effect of Incoming Wakes on the Stator Performance in a Single-Stage Low Speed Axial Flow Compressor Operating at Design and Near Stall Conditions

Guillaume Pallot, Dai Kato, Wataru Kanameda, Yutaka Ohta
Proc. ASME. GT2016, Volume 2D: Turbomachinery, V02DT44A037, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57981
https://doi.org/10.1115/GT2016-57981
View Paper titled, Effect of Incoming Wakes on the Stator Performance in a Single-Stage Low Speed Axial Flow Compressor Operating at Design and Near Stall Conditions
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Topics: Axial flow, Design, Stators, Wakes, Rotors, Pressure, Boundary layers, Compressors, Engineering simulation, Simulation
Proceedings Papers

An N-S Simulation of Stall Cell Behavior in a 2-D Compressor Rotor-Stator System at Various Loads

Eisuke Outa, Dai Kato, Kaoru Chiba
Proc. ASME. GT1994, Volume 1: Turbomachinery, V001T01A093, June 13–16, 1994
Publisher: American Society of Mechanical Engineers
Paper No: 94-GT-257
https://doi.org/10.1115/94-GT-257
View Paper titled, An N-S Simulation of Stall Cell Behavior in a 2-D Compressor Rotor-Stator System at Various Loads
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Topics: Compressors, Rotors, Simulation, Stators, Stress, Blades, Flow (Dynamics), Electromagnetic induction, Linkages, Numerical analysis
Proceedings Papers

Numerical Analysis of Flow in a Transonic Compressor With a Single Circumferential Casing Groove: Application to Two Different Compressor Rotors

Yasunori Sakuma, Toshinori Watanabe, Takehiro Himeno, Dai Kato, Takeshi Murooka, Yukari Shuto
Proc. ASME. GT2014, Volume 2A: Turbomachinery, V02AT37A044, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-26691
https://doi.org/10.1115/GT2014-26691
View Paper titled, Numerical Analysis of Flow in a Transonic Compressor With a Single Circumferential Casing Groove: Application to Two Different Compressor Rotors
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Topics: Compressors, Flow (Dynamics), Numerical analysis, Rotors, Leakage flows, Stability, Blades, Clearances (Engineering), Computational fluid dynamics, Design
Proceedings Papers

Unsteady Flow Structure in an Axial Compressor at Windmill Condition

Takashi Goto, Dai Kato, Yutaka Ohta, Eisuke Outa
Proc. ASME. GT2014, Volume 2D: Turbomachinery, V02DT44A010, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25609
https://doi.org/10.1115/GT2014-25609
View Paper titled, Unsteady Flow Structure in an Axial Compressor at Windmill Condition
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Topics: Compressors, Unsteady flow, Stators, Vortices, Flow (Dynamics), Pressure, Separation (Technology), Locks (Waterways), Shear (Mechanics), Suction
Proceedings Papers

Numerical Analysis of Flow in a Transonic Compressor With a Single Circumferential Casing Groove: Influence of Groove Location and Depth on Flow Instability

Yasunori Sakuma, Toshinori Watanabe, Takehiro Himeno, Dai Kato, Takeshi Murooka, Yukari Shuto
Proc. ASME. GT2013, Volume 6A: Turbomachinery, V06AT35A019, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94988
https://doi.org/10.1115/GT2013-94988
View Paper titled, Numerical Analysis of Flow in a Transonic Compressor With a Single Circumferential Casing Groove: Influence of Groove Location and Depth on Flow Instability
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Topics: Compressors, Flow (Dynamics), Flow instability, Numerical analysis, Blades, Leakage flows, Rotors, Stability, Stall inception, Chords (Trusses)
Journal Articles

Numerical Analysis of Flow in a Transonic Compressor With a Single Circumferential Casing Groove: Influence of Groove Location and Depth on Flow Instability

Yasunori Sakuma, Toshinori Watanabe, Takehiro Himeno, Dai Kato, Takeshi Murooka, Yukari Shuto
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2014, 136(3): 031017.
Paper No: TURBO-13-1132
https://doi.org/10.1115/1.4025575
Published Online: October 25, 2013
View Article titled, Numerical Analysis of Flow in a Transonic Compressor With a Single Circumferential Casing Groove: Influence of Groove Location and Depth on Flow Instability
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Topics: Blades, Flow (Dynamics), Leakage flows, Rotors, NASA, Compressors, Numerical analysis, Vortices, Leakage, Stability
Proceedings Papers

The Influence of Shrouded Stator Cavity Flows on the Aerodynamic Performance of a High-Speed Multistage Axial-Flow Compressor

Dai Kato, Mai Yamagami, Naoki Tsuchiya, Hidekazu Kodama
Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 297-307, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46300
https://doi.org/10.1115/GT2011-46300
View Paper titled, The Influence of Shrouded Stator Cavity Flows on the Aerodynamic Performance of a High-Speed Multistage Axial-Flow Compressor
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Topics: Axial flow, Cavity flows, Compressors, Stators, Cavities, Flow (Dynamics), Rotors, Blades, Engineering simulation, Heating
Proceedings Papers

CFD Modeling Effects on Unsteady Multistage Simulation for a Transonic Axial Compressor

Mai Yamagami, Hidekazu Kodama, Dai Kato, Naoki Tsuchiya, Yasuo Horiguchi, Junichi Kazawa
Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 1689-1702, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46198
https://doi.org/10.1115/GT2011-46198
View Paper titled, CFD Modeling Effects on Unsteady Multistage Simulation for a Transonic Axial Compressor
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Topics: Compressors, Computational fluid dynamics, Modeling, Simulation, Flow (Dynamics), Leakage, Stators, Turbulence, Annulus, Cavities
Proceedings Papers

The Effect of the Casing Movement Relative to the Blades on the Tip Leakage Loss in Axial Flow Compressors

Guillaume Pallot, Dai Kato, Hidekazu Kodama, Kazunari Matsuda, Hideo Taniguchi, Hiromasa Kato, Ken-ichi Funazaki
Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 275-284, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46182
https://doi.org/10.1115/GT2011-46182
View Paper titled, The Effect of the Casing Movement Relative to the Blades on the Tip Leakage Loss in Axial Flow Compressors
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Topics: Axial flow, Blades, Compressors, Leakage, Cascades (Fluid dynamics), Clearances (Engineering), Entropy, Computation, Flow (Dynamics), Rotors
Proceedings Papers

Unsteady Flow Effects in a High-Speed Multistage Axial Compressor

Mai Yamagami, Hidekazu Kodama, Dai Kato, Naoki Tsuchiya, Yasuo Horiguchi, Junichi Kazawa
Proc. ASME. GT2009, Volume 7: Turbomachinery, Parts A and B, 1651-1664, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59583
https://doi.org/10.1115/GT2009-59583
View Paper titled, Unsteady Flow Effects in a High-Speed Multistage Axial Compressor
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Topics: Compressors, Unsteady flow, Simulation, Blades, Design, Pressure, Wakes
Proceedings Papers

Modeling of Multi-Phase Flow in Electro-Chemical Machining: One-Way Coupling Versus Two-Way Coupling

Ryo Tsuboi, Kazuaki Inaba, Makoto Yamamoto, Dai Kato
Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 497-502, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37594
https://doi.org/10.1115/FEDSM2007-37594
View Paper titled, Modeling of Multi-Phase Flow in Electro-Chemical Machining: One-Way Coupling Versus Two-Way Coupling
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Topics: Machining, Modeling, Multiphase flow, Bubbles, Electrolytes, Flow (Dynamics), Hydrogen, Aeronautics, Aerospace industry, Approximation
Proceedings Papers

Multi-Physics Simulation of Electro-Chemical Machining Process for Three-Dimensional Compressor Blade

Toshiaki Fujisawa, Kazuaki Inaba, Makoto Yamamoto, Dai Kato
Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 1779-1786, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37678
https://doi.org/10.1115/FEDSM2007-37678
View Paper titled, Multi-Physics Simulation of Electro-Chemical Machining Process for Three-Dimensional Compressor Blade
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Topics: Blades, Compressors, Machining, Physics, Simulation, Flow (Dynamics), Aeronautics, Aerospace industry, Biomedicine, Computational fluid dynamics
Proceedings Papers

Modelling of Three-Phase Flow in Electro-Chemical Machining

Ryo Tsuboi, Kazuyuki Toda, Makoto Yamamoto, Ryuki Nohara, Dai Kato
Proc. ASME. FEDSM2005, Volume 2: Fora, 597-602, June 19–23, 2005
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2005-77435
https://doi.org/10.1115/FEDSM2005-77435
View Paper titled, Modelling of Three-Phase Flow in Electro-Chemical Machining
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Topics: Flow (Dynamics), Machining, Modeling, Bubbles, Hydrogen, Metals, Aeronautics, Aerospace industry, Biomedicine, Computational fluid dynamics
Journal Articles

Multiphysics Simulation of Electrochemical Machining Process for Three-Dimensional Compressor Blade

Toshiaki Fujisawa, Kazuaki Inaba, Makoto Yamamoto, Dai Kato
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. August 2008, 130(8): 081602.
https://doi.org/10.1115/1.2956596
Published Online: July 30, 2008
View Article titled, Multiphysics Simulation of Electrochemical Machining Process for Three-Dimensional Compressor Blade
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Topics: Blades, Compressors, Flat plates, Flow (Dynamics), Machining, Metals, Simulation, Hydrogen, Bubbles, Electric fields