Evolution of heat transfer at the stagnation point during the detached bow shock establishment

doi:10.1007/s00193-021-01007-9

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Evolution of heat transfer at the stagnation point during the detached bow shock establishment
	Wang Q(汪球)2; Li JP(李进平)2; Luo K(罗凯)1,2; Li JW(栗继伟)2; Zhao W(赵伟)1,2
刊名	SHOCK WAVES
	2021-04-02
页码	8
关键词	Hypersonic Aerodynamic heating Detached bow shock Shock tube expansion tube
ISSN号	0938-1287
DOI	10.1007/s00193-021-01007-9
通讯作者	Li, J. P.(lijinping@imech.ac.cn)
英文摘要	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.
分类号	Q4
资助项目	National Natural Science Foundation of China[11402275] ; National Natural Science Foundation of China[11472280] ; National Natural Science Foundation of China[11532014]
WOS研究方向	Mechanics
语种	英语
WOS记录号	WOS:000636192800001
资助机构	National Natural Science Foundation of China
其他责任者	Li, J. P.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86422]
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.Univ Chinese Acad Sci, Sch Engn Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China;
推荐引用方式 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.