Hypersonic boundary layer theory in the symmetry plane of blunt bodies
文献类型：期刊论文
| 作者 | Wang, Qiu2 ; Li, Jinping2; Gu, Sangdi1; Li JP(李进平); Wang Q(汪球)
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| 刊名 | JOURNAL OF FLUID MECHANICS
 |
| 出版日期 | 2024-10-10 |
| 卷号 | 997页码:35 |
| 关键词 | compressible boundary layers hypersonic flow |
| ISSN号 | 0022-1120 |
| DOI | 10.1017/jfm.2024.708 |
| 通讯作者 | Li, Jinping(lijinping@imech.ac.cn) |
| 英文摘要 | Solving the three-dimensional boundary layer equations carries theoretical significance and practical applications, which also poses substantial challenges due to its inherent complexity. In this paper, the laminar boundary layer equations for the symmetry plane of three-dimensional bodies are derived in an orthogonal curvilinear coordinate system associated with the principal curvatures. The derivation of the boundary layer equations is based not only on the common symmetric properties of the flow, as given by Hirschel et al. (Three-Dimensional Attached Viscous Flow, 2014, Academic Press, pp. 183-187), but also incorporates the geometric symmetry properties of the body. The derived equations are more representative and simplified. Notably, these equations can degenerate to a form consistent with or equivalent to the commonly used boundary layer equations for special bodies such as flat plates, cones and spheres. Furthermore, for hypersonic flows, the crossflow velocity gradient at the boundary layer edge on the symmetry plane is derived based on Newtonian theory. Subsequently, this parameter can provide the necessary boundary condition needed for solving the boundary layer equations using existing methods. Finally, as examples, the equations developed in this paper are solved using the difference-differential method for several typical three-dimensional blunt shapes that appeared on hypersonic vehicles. They prove to be useful in the analysis and interpretation of boundary layer flow characteristics in the symmetry plane of blunt bodies. |
| WOS关键词 | HEAT-TRANSFER ; CONE ; FLOW |
| 资助项目 | Key-Area Research and Development Program of Guangdong Province[2021B0909060004] ; National Natural Science Foundation of China[12072352] ; National Natural Science Foundation of China[12232018] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB 0620203] ; Youth Innovation Promotion Association CAS[2021020] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001329499400001 |
| 资助机构 | Key-Area Research and Development Program of Guangdong Province ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/96969]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 通讯作者 | Li, Jinping |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Aeronaut & Aviat Engn, Kowloon, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Qiu,Li, Jinping,Gu, Sangdi,et al. Hypersonic boundary layer theory in the symmetry plane of blunt bodies[J]. JOURNAL OF FLUID MECHANICS,2024,997:35. |
| APA | Wang, Qiu,Li, Jinping,Gu, Sangdi,李进平,&汪球.(2024).Hypersonic boundary layer theory in the symmetry plane of blunt bodies.JOURNAL OF FLUID MECHANICS,997,35. |
| MLA | Wang, Qiu,et al."Hypersonic boundary layer theory in the symmetry plane of blunt bodies".JOURNAL OF FLUID MECHANICS 997(2024):35. |
入库方式： OAI收割
来源：力学研究所
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