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Aerodynamic heating of inflatable aeroshell in orbital reentry

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Title: Aerodynamic heating of inflatable aeroshell in orbital reentry
Authors: Takahashi, Yusuke Browse this author →KAKEN DB
Yamada, Kazuhiko Browse this author
Keywords: Inflatable reentry vehicle
Aerodynamic heating
Coupled analysis
Issue Date: Nov-2018
Publisher: Elsevier
Journal Title: Acta astronautica
Volume: 152
Start Page: 437
End Page: 448
Publisher DOI: 10.1016/j.actaastro.2018.08.003
Abstract: The aerodynamic heating of an inflatable reentry vehicle, which is one of the innovative reentry technologies, was numerically investigated using a tightly coupled approach involving computational fluid dynamics and structure analysis. The fundamentals of a high-enthalpy flow around the inflatable reentry vehicle were clarified. It was found that the flow fields in the shock layer formed in front of the vehicle were strongly in a chemical nonequilibrium state owing to its low-ballistic coefficient trajectory. The heat flux tendencies on the surface of the vehicle were comprehensively investigated for various effects of the vehicle shape, surface catalysis, and turbulence via a parametric study of these parameters. In addition, based on the present results of the computational approach, a new heating-rate method was developed to calculate the heat flux of the nonequilibrium flow. It was demonstrated that the method could well-reproduce the heat flux on the inflatable reentry vehicle.
Rights: © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高橋 裕介

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