A quasi one dimensional model for the stagnation streamline in hypersonic magnetohydrodynamic flows
文献类型：期刊论文
| 作者 | Luo K(罗凯) ; Wang Q(汪球); Li JP(李进平); Zhao W(赵伟); Gu, Sangdi1
|
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2023-03 |
| 卷号 | 35期号:3页码:36101 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0138366 |
| 英文摘要 | The flow near the stagnation streamline of a blunt body is often attracted and analyzed by using the approximation of local similarity, which reduces the equations of motion to a system of ordinary differential equations. To efficiently calculate the stagnation streamline parameters in hypersonic magnetohydrodynamic (MHD) flows, an improved quasi one dimensional model for MHD flows is developed in the present paper. The Lorentz force is first incorporated into the original dimensionally reduced Navier Stokes equations to compensate for its effect. Detailed comparisons about the shock standoff distance and the stagnation point heat flux are conducted with the two dimensional Navier Stokes calculations for flows around the orbital reentry experiment model, including gas flows in thermochemical nonequilibrium under different magnetic field strengths. Results show that the shock curvature should be considered in the quasi one dimensional model to prevent accuracy reduction due to the deviation from the local similarity assumption, particularly for hypersonic MHD flows, where the shock standoff distance will increase with larger magnetic strength. Then, the shock curvature parameter is introduced to compensate for the shock curvature effect. A good agreement between the improved quasi one dimensional and the two dimensional full field simulations is achieved, indicating that the proposed model enables an efficient and reliable evaluation of stagnation streamline quantities under hypersonic MHD flows. |
| 分类号 | 一类/力学重要期刊 |
| WOS研究方向 | Mechanics ; Physics, Fluids & Plasmas |
| 语种 | 英语 |
| WOS记录号 | WOS:000942071400012 |
| 资助机构 | National Natural Science Foundation of China [12072352, 12232018] ; Youth Innovation Promotion Association CAS [2021020] |
| 其他责任者 | Wang, Q (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/91860]  |
| 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, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.Hong Kong Polytech Univ, Dept Aeronaut & Aviat Engn, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo K,Wang Q,Li JP,et al. A quasi one dimensional model for the stagnation streamline in hypersonic magnetohydrodynamic flows[J]. PHYSICS OF FLUIDS,2023,35(3):36101. |
| APA | 罗凯,汪球,李进平,赵伟,&Gu, Sangdi.(2023).A quasi one dimensional model for the stagnation streamline in hypersonic magnetohydrodynamic flows.PHYSICS OF FLUIDS,35(3),36101. |
| MLA | 罗凯,et al."A quasi one dimensional model for the stagnation streamline in hypersonic magnetohydrodynamic flows".PHYSICS OF FLUIDS 35.3(2023):36101. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。