| A quasi one dimensional model for the stagnation streamline in hypersonic magnetohydrodynamic flows | |
Luo K(罗凯) ; Wang Q(汪球); Li JP(李进平); Zhao W(赵伟); Gu, Sangdi1
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| Source Publication | PHYSICS OF FLUIDS
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| 2023-03 | |
| Volume | 35Issue:3Pages:36101 |
| ISSN | 1070-6631 |
| Abstract | 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. |
| DOI | 10.1063/5.0138366 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000942071400012 |
| WOS Research Area | Mechanics ; Physics, Fluids & Plasmas |
| WOS Subject | Mechanics ; Physics |
| Funding Organization | National Natural Science Foundation of China [12072352, 12232018] ; Youth Innovation Promotion Association CAS [2021020] |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Wang, Q (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/91860 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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.Rp_Au:Wang, Q (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
| 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. |
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| Jp2023A183.pdf（4100KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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