Výsledky vyhledávání - "Eijiro Kitamura"

Influences of Properties of Primary Flows on Internal Flows of Mixing Tubes

Autor: Syuichi Watanabe, Goro Masuya, Eijiro Kitamura, Sadatake Tomioka, Noboru Sakuranaka

Publikováno v: JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 57:9-17

The influences of the molecular weight and total temperature of a primary gas on the flow fields of constant-area mixing tubes for ejector-jets were investigated. First, in order to investigate the exit choke, parametric studies were carried out for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a2e3bcb55e110b00dc571230fd0d1b2c
https://doi.org/10.2322/jjsass.57.9

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Dominant Parameter for Pressure Recovery Performanceof Constant-Area Mixing Tubes of Ejector Jets

Autor: Noboru Sakuranaka, Syuichi Watanabe, Goro Masuya, Sadatake Tomioka, Eijiro Kitamura

Publikováno v: JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 57:1-8

A new variable termed the ejector drive parameter was proposed as a dominant parameter of the pressure recovery ratio of constant-area mixing tubes. It was derived from the one-dimensional analysis of a zero-secondary flow mode. This parameter repres

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6f4e13a3228a00215b1af551358c83b3
https://doi.org/10.2322/jjsass.57.1

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Investigations of Internal Flow Fields of Constant-Area Mixing-Tubes under Starting-Limit Conditions

Autor: Syuichi Watanabe, Noboru Sakuranaka, Goro Masuya, Sadatake Tomioka, Eijiro Kitamura

Publikováno v: JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 57:47-55

Flow fields in the constant-area mixing tubes of ejector jets were investigated under the starting-limit conditions of an aerodynamic choking mode by performing numerical simulations and cold flow experiments. Pressure recovery was almost completed i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f04a6c958bee42ae298117b3cad8a387
https://doi.org/10.2322/jjsass.57.47

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Aerodynamic Tests of Scramjet Engines with Variable Mach Number Nozzle

Autor: Goro Masuya, Masahiro Takahashi, Noboru Sakuranaka, Syuichi Watanabe, Eijiro Kitamura, Tohru Mitani

Publikováno v: JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 53:288-294

A simple variable Mach number nozzle for aerodynamic engine tests was designed and calibrated. In this new nozzle, only one hydraulic actuator made freestream Mach number change from 2 to 4 during a run of the wind tunnel. The optimization of the noz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5c11f951695e505bcf3080ba3ef4ac85
https://doi.org/10.2322/jjsass.53.288

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Evaluation of Air Capture Ratio of Scramjet Inlet by Multi-Point Pressure Measurement

Autor: Noboru Sakuranaka, Muneo Izumikawa, Eijiro Kitamura, Tohru Mitani, Syuichi Watanabe, Goro Masuya

Publikováno v: JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 53:22-28

A method to evaluate aerodynamic performances of scramjet engines by using multi-probe rakes was proposed. The aerodynamic tests were carried out under Mach 4 flight conditions. The Pitot and static pressures were measured at 250 points in the cross

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ebcaca909c52e17a974374d5f6cd16bf
https://doi.org/10.2322/jjsass.53.22

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PIV Measurement of Supersonic Swirling Jet

Autor: Shunsuke Koike, Eijiro Kitamura, Goro Masuya, Masashi Matsumoto

Publikováno v: Journal of the Visualization Society of Japan. 22:189-192

Supersonic fuel injection with swirl is investigated to enhance the air-fuel mixing in scramjet combustors. We studied the effect of supersonic swirling jet for mixing enhancement with a PIV. In measurement of supersonic flow with a PTV, it is import

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7383a7bbfa40f2f809d62c137e556aad
https://doi.org/10.3154/jvs.22.1supplement_189

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Pressure Recovery Characteristics of Diverging Mixing Tubes for Ejector-Jets

Autor: Noboru Sakuranaka, Syuichi Watanabe, Goro Masuya, Sadatake Tomioka, Eijiro Kitamura

Publikováno v: 14th AIAA/AHI Space Planes and Hypersonic Systems and Technologies Conference.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3ae2587237d275e142c2e2479d72421
https://doi.org/10.2514/6.2006-7979

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Pressure Recovery in Mixing Ducts of Ejector-Ramjets

Autor: Shenghong Huang, Eijiro Kitamura, Tohru Mitani, Goro Masuya

Publikováno v: AIAA/CIRA 13th International Space Planes and Hypersonics Systems and Technologies Conference.

Pressure recovery performances of circular and rectangular mixing ducts were investigated. Cold flow experiments were conducted using supersonic-subsonic ejectors. Afterburning in the second combustor was simulated by inserting plugs into exits of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13baf280cfc26fb2e65b707f1b4835a0
https://doi.org/10.2514/6.2005-3420

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Measurement of Vortices and Shock Waves Produced by Ramp and Twin Jets

Autor: Kentaro Suzuki, Shunsuke Koike, Masashi Matsumoto, Goro Masuya, Eijiro Kitamura, Mitsutomo Hirota, Kenichi Takita

Publikováno v: 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit.

Three-dimensional velocity distributions produced by a ramp injector in a Mach 2.35 airstream were measured with particle image velocimetry. Two jets were injected from the base of the ramp at Mach 2.0. Streamwise vorticity distributions were deduced

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a884623357f2e8490597673be54b7f35
https://doi.org/10.2514/6.2004-3656

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