Numerical simulation of the side-clearance effect on the supersonic air-inlet performance for high mach integrated control experiment “himico

Masakazu Sano, Hidekazu Yoshida, Sho Wakabayashi, Takahiro Chiga, Tetsuya Sato, Atsushi Hashimoto, Takayuki Kojima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Japan Aerospace Exploration Agency (JAXA) is investigating High Mach Integrated Control experiment (HIMICO) to realize a Mach 5 class hypersonic aircraft. Mass capture ratio (MCR) measured in the supersonic wind tunnel test is 15-40% lower than that analytically expected. This is caused by the spillage from the side-clearances between sidewalls and 2nd/3rd ramps. The CFD analysis of the model with the side-clearances agrees with the experiment result within 5% error. In this study, the side-clearance effect on the supersonic air-inlet performance is investigated by numerical simulation. With increasing the width of the side-clearance, the scale of the flow separation on the 2nd ramp gets larger. There are two types of flow separation, at center line and at the side wall. These two types of flow separation increases pressure at the entrance of the inlet and flow is pushed out. This causes MCR reduction.

Original languageEnglish
Title of host publication2018 Joint Propulsion Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105708
DOIs
Publication statusPublished - 2018
Event54th AIAA/SAE/ASEE Joint Propulsion Conference, 2018 - Cincinnati, United States
Duration: 2018 Jul 92018 Jul 11

Publication series

Name2018 Joint Propulsion Conference

Conference

Conference54th AIAA/SAE/ASEE Joint Propulsion Conference, 2018
CountryUnited States
CityCincinnati
Period18/7/918/7/11

ASJC Scopus subject areas

  • Aerospace Engineering
  • Control and Systems Engineering

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