Direct numerical simulation of incident shock-turbulent boundary layer interaction with chemical reactions
文献类型：期刊论文
| 作者 | Zhu YH(朱艳华)1; Li XL(李新亮)2; Guo TB(郭同彪)1; Liu HW(刘洪伟)1 |
| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS C
 |
| 出版日期 | 2025-07-04 |
| 页码 | 25 |
| 关键词 | Direct numerical simulation shock/turbulent boundary layer interaction chemical nonequilibrium effects |
| ISSN号 | 0129-1831 |
| DOI | 10.1142/S012918312550130X |
| 通讯作者 | Liu, Hongwei(hliu@imech.ac.cn) |
| 英文摘要 | This study employs direct numerical simulations to explore the interaction between an oblique shock wave and a turbulent boundary layer under high-enthalpy conditions, accounting for chemical nonequilibrium effects. The investigation is conducted at a freestream Mach number of 10, where a shock wave inclined at 17 degrees impinges on a turbulent boundary layer over a flat plate, causing flow separation and reattachment. The impact of chemical reactions is examined by comparing reactive and nonreactive flow conditions, using a five-species air model. The chemical reactions lead to a reduction in the mean flow temperature, which in turn causes an earlier transition to turbulence. In the shock-boundary layer interaction region, the reactive case exhibits a smaller separation bubble with a slightly higher dominant oscillation frequency, due to increased near-wall fluid momentum resulting from lower wall temperatures. Additionally, analysis of product mass fractions and Damk & ouml;hler numbers highlights the presence of pronounced chemical nonequilibrium effects, particularly inside the separation bubble. Finally, it is found that turbulence has some effect in promoting the progress of chemical reactions toward equilibrium. Nevertheless, strong nonequilibrium states persist throughout the entire turbulent boundary layer. |
| 分类号 | 二类 |
| 资助项目 | Strategic Priority Research Program of Chinese Academy of Science[XDB0500301] ; NSFC[12232018] ; NSFC[12472229] ; NSFC[23FAA01491] |
| WOS研究方向 | Computer Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001523772700001 |
| 资助机构 | Strategic Priority Research Program of Chinese Academy of Science ; NSFC |
| 其他责任者 | 刘洪伟 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/102256]  |
| 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.Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu YH,Li XL,Guo TB,et al. Direct numerical simulation of incident shock-turbulent boundary layer interaction with chemical reactions[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS C,2025:25. |
| APA | 朱艳华,李新亮,郭同彪,&刘洪伟.(2025).Direct numerical simulation of incident shock-turbulent boundary layer interaction with chemical reactions.INTERNATIONAL JOURNAL OF MODERN PHYSICS C,25. |
| MLA | 朱艳华,et al."Direct numerical simulation of incident shock-turbulent boundary layer interaction with chemical reactions".INTERNATIONAL JOURNAL OF MODERN PHYSICS C (2025):25. |
入库方式： OAI收割
来源：力学研究所
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