Control of shock-wave/boundary-layer interaction using abackward-facing step
文献类型：期刊论文
| 作者 | Zhai J2,3; Zhang CA(张陈安)2 ; Wang FM(王发民)2; Zhang WW(张伟为)1
|
| 刊名 | AEROSPACE SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 126页码:13 |
| ISSN号 | 1270-9638 |
| 关键词 | Shock-wave/boundary-layer interaction Backward-facing step Flow separation Hypersonic inlet |
| DOI | 10.1016/j.ast.2022.107665 |
| 通讯作者 | Zhai, Jian(zhai_jian@mail.nwpu.edu.cn) |
| 英文摘要 | 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. |
| 分类号 | 一类 |
| WOS关键词 | INDUCED SEPARATION ; HYPERSONIC INLETS ; SUPERSONIC-FLOW ; SUCTION ; AREA ; JET |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000880656500008 |
| 其他责任者 | Zhai, Jian |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/90729]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Northwestern Polytech Univ, Natl Key Lab Aerodynam Design & Res, Xian 700072, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 3.Chinese Aeronaut Estab, Beijing 100029, Peoples R China; |
| 推荐引用方式 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. |
| 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. |
入库方式： OAI收割
来源：力学研究所
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