| Control of shock-wave/boundary-layer interaction using abackward-facing step | |
Zhai J1,2; Zhang CA(张陈安)2 ; Wang FM(王发民)2; Zhang WW(张伟为)3
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| Corresponding Author | Zhai, Jian([email protected]) |
| Source Publication | AEROSPACE SCIENCE AND TECHNOLOGY
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| 2022-07-01 | |
| Volume | 126Pages:13 |
| ISSN | 1270-9638 |
| Abstract | Flow separation induced by the shock-wave/boundary-layer interaction is detrimental to the performance of a hypersonic inlet. This paper develops a new method to control the shock-wave/boundary-layer interaction using a backward-facing step. The backward-facing step is placed on the shock-wave generator with a deflection angle of 14 deg. The shock-wave generator and a flat plate construct a simple hypersonic inlet. The control ability and mechanism are numerically studied using Reynolds Averaged Navier-Stokes equations at a freestream Mach number of 5. The results suggest that the backward-facing step can effectively suppress the flow separation. The reason is that the backward-facing step replaces the strong shock-wave in the baseline inlet with two weak ones. Consequently, the separation bubble in the controlled inlet is much smaller than that in the baseline inlet. Moreover, a parameter study is performed to analyze the effect of the design parameters of the backward-facing step on the control ability. The wave systems in the controlled inlet are classified into three types based on the results. However, only the effective wave system can suppress the shock-wave/boundary-layer interaction. (C) 2022 Elsevier Masson SAS. All rights reserved. |
| Keyword | Shock-wave/boundary-layer interaction Backward-facing step Flow separation Hypersonic inlet |
| DOI | 10.1016/j.ast.2022.107665 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000880656500008 |
| WOS Keyword | INDUCED SEPARATION ; HYPERSONIC INLETS ; SUPERSONIC-FLOW ; SUCTION ; AREA ; JET |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Aerospace |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Zhai, Jian |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90730 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Chinese Aeronaut Estab, Beijing 100029, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 3.Northwestern Polytech Univ, Natl Key Lab Aerodynam Design & Res, Xian 700072, Shaanxi, Peoples R China |
| Recommended Citation GB/T 7714 | Zhai J,Zhang CA,Wang FM,et al. Control of shock-wave/boundary-layer interaction using abackward-facing step[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2022,126:13.Rp_Au:Zhai, Jian |
| APA | Zhai J,张陈安,王发民,&张伟为.(2022).Control of shock-wave/boundary-layer interaction using abackward-facing step.AEROSPACE SCIENCE AND TECHNOLOGY,126,13. |
| MLA | Zhai J,et al."Control of shock-wave/boundary-layer interaction using abackward-facing step".AEROSPACE SCIENCE AND TECHNOLOGY 126(2022):13. |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2022FA298.pdf（4533KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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