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Tsutomu Oishi
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Proceedings Papers

Experimental Study on Acoustic Performances of Notched Nozzle Using a Subscale Turbofan Engine

Tatsuya Ishii, Kenichiro Nagai, Hideshi Oinuma, Ryo Kagaya, Tsutomu Oishi
Proc. ASME. GT2018, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A036, June 11–15, 2018
Paper No: GT2018-76713
DOI: https://doi.org/10.1115/GT2018-76713
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Topics: Acoustics, Engines, Nozzles, Turbofans, Noise (Sound), Fuel consumption, Thrust, Aerospace industry, Emissions, Exhaust systems
Proceedings Papers

Noise Test of Revised Notched Nozzle Using a Jet Engine

Tatsuya Ishii, Nozomi Tanaka, Tsutomu Oishi, Yutaka Ishii
Proc. ASME. GT2013, Volume 2: Aircraft Engine; Coal, Biomass and Alternative Fuels; Cycle Innovations, V002T01A012, June 3–7, 2013
Paper No: GT2013-94833
DOI: https://doi.org/10.1115/GT2013-94833
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Topics: Jet engines, Noise (Sound), Nozzles, Engines, Noise control, Acoustics, Design, Microphones, Shear (Mechanics), Shear stress
Proceedings Papers

Suppression of Supersonic Jet Noise From Rectangular Nozzle by Microjet Injection: Influence of Main Jet Condition

Ryuichi Okada, Toshinori Watanabe, Seiji Uzawa, Takehiro Himeno, Tsutomu Oishi
Proc. ASME. GT2013, Volume 2: Aircraft Engine; Coal, Biomass and Alternative Fuels; Cycle Innovations, V002T01A022, June 3–7, 2013
Paper No: GT2013-95180
DOI: https://doi.org/10.1115/GT2013-95180
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Topics: Noise (Sound), Nozzles, Flow (Dynamics), Noise control, Pressure, Mach number, Reynolds-averaged Navier–Stokes equations, Schlieren methods, Shear (Mechanics), Shock (Mechanics)
Proceedings Papers

Hot-Jet Noise Test of a Revised Notched Nozzle

Tatsuya Ishii, Nozomi Tanaka, Hideshi Oinuma, Tsutomu Oishi
Proc. ASME. GT2012, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation, 301-311, June 11–15, 2012
Paper No: GT2012-69507
DOI: https://doi.org/10.1115/GT2012-69507
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Topics: Noise (Sound), Nozzles, Engines, Flow (Dynamics), Temperature, Noise control, Thrust, Acoustics, Aircraft engines, Experimental methods
Proceedings Papers

Influence of Microjet Condition on Characteristics of Supersonic Jet Noise and Flow Field

Ryuichi Okada, Toshinori Watanabe, Seiji Uzawa, Takehiro Himeno, Tsutomu Oishi
Proc. ASME. GT2012, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation, 173-183, June 11–15, 2012
Paper No: GT2012-68821
DOI: https://doi.org/10.1115/GT2012-68821
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Topics: Flow (Dynamics), Noise (Sound), Noise control, Acoustics, Aircraft, Mach number, Nozzles, Schlieren methods, Visualization
Proceedings Papers

Experimental and Computational Approach for Jet Noise Mitigation by Mixing Control Devices

Nozomi Tanaka, Tsutomu Oishi, Yoshinori Ooba, Shunji Enomoto, Kazuomi Yamamoto, Tatsuya Ishii
Proc. ASME. GT2011, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Wind Turbine Technology, 77-89, June 6–10, 2011
Paper No: GT2011-45200
DOI: https://doi.org/10.1115/GT2011-45200
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Topics: Noise control, Nozzles, Noise (Sound), Acoustics, Shear (Mechanics), Design, Jets, Large eddy simulation, Mach number, Thrust
Proceedings Papers

Influence of Microjet Injection on Supersonic Jet Noise and Flow Field

Ryuichi Okada, Toshinori Watanabe, Seiji Uzawa, Takehiro Himeno, Tsutomu Oishi
Proc. ASME. GT2011, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Wind Turbine Technology, 233-242, June 6–10, 2011
Paper No: GT2011-46150
DOI: https://doi.org/10.1115/GT2011-46150
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Topics: Flow (Dynamics), Noise (Sound), Noise control, Acoustics, Computational fluid dynamics, Jet engines, Mach number, Nozzles, Sound pressure, Spectra (Spectroscopy)
Proceedings Papers

Investigation of Microjet Injection for Reduction of Supersonic Jet Noise

Ryuichi Okada, Toshinori Watanabe, Seiji Uzawa, Takehiro Himeno, Tsutomu Oishi
Proc. ASME. GT2010, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Education; Electric Power; Manufacturing Materials and Metallurgy, 309-317, June 14–18, 2010
Paper No: GT2010-23036
DOI: https://doi.org/10.1115/GT2010-23036
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Topics: Noise (Sound), Noise control, Computational fluid dynamics, Flow (Dynamics), Jet propulsion, Mach number, Nozzles, Schlieren methods, Visualization
Proceedings Papers

Experimental Study of Supersonic Jet Noise Reduction With Microjet Injection

Toshinori Watanabe, Ryuichi Okada, Seiji Uzawa, Takehiro Himeno, Tsutomu Oishi
Proc. ASME. GT2009, Volume 7: Turbomachinery, Parts A and B, 719-727, June 8–12, 2009
Paper No: GT2009-59436
DOI: https://doi.org/10.1115/GT2009-59436
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Topics: Jets, Mach number, Noise (Sound), Noise control, Nozzles, Pressure, Schlieren methods, Shear (Mechanics), Shock (Mechanics), Sound pressure