| Evolution of heat transfer at the stagnation point during the detached bow shock establishment | |
Wang Q(汪球)1 ; Li JP(李进平)1; Luo K(罗凯)1,2; Li JW(栗继伟)1; Zhao W(赵伟)1,2
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| Corresponding Author | Li, J. P.(lijinping@imech.ac.cn) |
| Source Publication | SHOCK WAVES
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| 2021-04-02 | |
| Pages | 8 |
| ISSN | 0938-1287 |
| Abstract | The diffraction of a shock wave over a stationary body is a problem of interest associated with the starting of shock tubes and expansion tubes which are well suited to studies of hypersonic flows. However, these facilities are characterized by very short test times. The transient parameters during the establishment of the detached bow shock in such impulsive facilities are important for both data processing and experimental design. In the present study, numerical simulations are conducted to investigate the diffraction of a normal shock wave over a sphere and the subsequent transient phenomena in a viscous perfect-gas flow field. The incident shock Mach number ranges from 3 to 5 with a specific heat ratio of 1.4. Based on the theoretical description of the reflected shock position during bow shock formation, approximate solutions for the time histories of the stagnation-point heat flux are also derived. The analytical and numerical results agree well. The results show that the stagnation-point pressure and heat flux approach their steady-state values much more rapidly than the shock detachment distance does. |
| Keyword | Hypersonic Aerodynamic heating Detached bow shock Shock tube expansion tube |
| DOI | 10.1007/s00193-021-01007-9 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000636192800001 |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Funding Project | National Natural Science Foundation of China[11402275] ; National Natural Science Foundation of China[11472280] ; National Natural Science Foundation of China[11532014] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | Q4 |
| Ranking | 1 |
| Contributor | Li, J. P. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86423 |
| 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, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Wang Q,Li JP,Luo K,et al. Evolution of heat transfer at the stagnation point during the detached bow shock establishment[J]. SHOCK WAVES,2021:8. |
| APA | 汪球,李进平,罗凯,栗继伟,&赵伟.(2021).Evolution of heat transfer at the stagnation point during the detached bow shock establishment.SHOCK WAVES,8. |
| MLA | 汪球,et al."Evolution of heat transfer at the stagnation point during the detached bow shock establishment".SHOCK WAVES (2021):8. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2021F185.pdf（1158KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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