DSMC Study for Effects of Angles of Attack on Closed Cavity of Space Vehicle in Hypersonic Rarefied Flow

Shao Jin Xiang*, Shu Zhou Fang

*此作品的通讯作者

科研成果: 书/报告/会议事项章节章节同行评审

1 引用 (Scopus)

摘要

In order to study the flow characteristics and the heat flux of cavity with length-to-depth ratio of 6 on the surfaces of the hypersonic reentry aerospace vehicles in rarefied gas flow, Direct Simulation Monte Carlo method (DSMC) with the adaptive grid is used. The free stream at a Mach Number of 8, an altitude of 60 km, and the angles of attack (AOA) ranging from 0° to 60°.The results show that the closed cavity changes its type when AOA changes and is back to closed type when AOA is 60°. Increasing AOA sometimes does not help free-stream to get into the cavity because the stream strikes the plate on the front edge of the cavity, and form a shock wave that changes the direction of the free-stream flow. The low-speed and high pressure region inside the cavity extends to the upper zone of the cavity due to the shock wave, the speed is getting smaller and the pressure is getting higher. When AOA is 40° and 50°, the heat flux of three surfaces of the cavity is higher than other situation.

源语言英语
主期刊名Springer Aerospace Technology
出版商Springer Science and Business Media Deutschland GmbH
43-56
页数14
DOI
出版状态已出版 - 2022

出版系列

姓名Springer Aerospace Technology
ISSN(印刷版)1869-1730
ISSN(电子版)1869-1749

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