Numerical Study on the Intake Performance with Side Clearance for the High Mach Integrated Control Experiment (HIMICO)

Hidekazu YOSHIDA; Masakazu SANO; Sho WAKABAYASHI; Takahiro CHIGA; Toshiya YOKOI; Atsushi HASHIMOTO; Keiichi MURAKAMI; Takayuki KOJIMA; Hideyuki TAGUCHI; Tetsuya SATO

doi:10.2322/tastj.19.135

Full Article

Numerical Study on the Intake Performance with Side Clearance for the High Mach Integrated Control Experiment (HIMICO)

Hidekazu YOSHIDA, Masakazu SANO, Sho WAKABAYASHI, Takahiro CHIGA, Toshiya YOKOI, Atsushi HASHIMOTO, Keiichi MURAKAMI, Takayuki KOJIMA, Hideyuki TAGUCHI, Tetsuya SATO

Author information

Hidekazu YOSHIDA
Department of Applied Mechanics, Waseda University
Masakazu SANO
Department of Applied Mechanics, Waseda University
Sho WAKABAYASHI
Department of Applied Mechanics, Waseda University
Takahiro CHIGA
Department of Applied Mechanics, Waseda University
Toshiya YOKOI
Department of Applied Mechanics, Waseda University
Atsushi HASHIMOTO
Aeronautical Technology Directorate, JAXA
Keiichi MURAKAMI
Aeronautical Technology Directorate, JAXA
Takayuki KOJIMA
Aeronautical Technology Directorate, JAXA
Hideyuki TAGUCHI
Aeronautical Technology Directorate, JAXA
Tetsuya SATO
Department of Applied Mechanics, Waseda University

Keywords: Computational Fluid Dynamics, Hypersonic Intake, Supersonic Wind Tunnel Test, Flow Separation

JOURNAL FREE ACCESS

2021 Volume 19 Issue 2 Pages 135-143

DOI https://doi.org/10.2322/tastj.19.135

Details

Abstract

This paper shows the effect of the side clearance on the air-intake performance of a ramjet for the High Mach Integrated Control Experiment (HIMICO). As the result of the wind tunnel test, the mass capture ratio (MCR) of the original intake is 15-35% lower than the designed value. CFD analysis suggested that this is caused by the flow separation on the ramp surface due to flow leakage from a 1-mm side clearance located at the moving part. The mechanism of the side clearance effect is cleared by CFD, and the CFD results considering the side clearance almost agree with the experiment. Then, a new intake in which the side clearance is reduced to 0.25 mm was designed and tested. The maximum MCR of the new intake is increased approximately 14% compared to the original intake.

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