Detonation wave structure and thrust variation of a ram accelerator with different projectile velocities

doi:10.1016/j.ast.2023.108717

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

	Detonation wave structure and thrust variation of a ram accelerator with different projectile velocities
	Shang, Jiahao 3,4; Wang, Kuanliang 2; Wang, Aifeng 1; Wang, Qiu 4; Zhao, Wei 3,4
刊名	AEROSPACE SCIENCE AND TECHNOLOGY
	2023-12-01
卷号	143 页码:8
关键词	Ram accelerator Detonation Oblique detonation wave Recirculation zone
ISSN号	1270-9638
DOI	10.1016/j.ast.2023.108717
通讯作者	Wang, Kuanliang(wangkuanliang@bit.edu.cn) ; Wang, Qiu(wangqiu@imech.ac.cn)
英文摘要	A study was conducted to investigate the effect of velocity on the detonation wave structure and thrust of a ram accelerator using a simulation of a premixed, reacting flow over a conical projectile. The simulation involved solving the compressible reactive Navier-Stokes equations with a detailed chemical model in a channel with a supersonic stoichiometric hydrogen-oxygen inflow. Results showed that at projectile velocities lower than the Chapman-Jouguet detonation velocity, a thermally choked unstart occurs. As the projectile velocity increases, the overdriven detonation mode, trans-detonative mode, and super-detonative mode successively form. The maximum thrust was achieved at the lower velocity limit under the overdriven normal detonation condition, but decreased continuously as an oblique detonation wave formed. The super-detonative mode was distinguished by the smoothness of the tail thrust derived from the recirculation zone and ignition before the conical ramp led to an unstart at the upper velocity limit.
资助项目	Foundation of China (NSFC)[12002041]
WOS关键词	OBLIQUE ; COMBUSTION
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:001117084100001
资助机构	Foundation of China (NSFC)
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/93578]
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	Wang, Kuanliang; Wang, Qiu
作者单位	1.Aero Engine Acad China, Aero Engine Corp China, Beijing 101304, Peoples R China 2.Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 4.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	Shang, Jiahao,Wang, Kuanliang,Wang, Aifeng,et al. Detonation wave structure and thrust variation of a ram accelerator with different projectile velocities[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2023,143:8.
APA	Shang, Jiahao,Wang, Kuanliang,Wang, Aifeng,Wang, Qiu,&Zhao, Wei.(2023).Detonation wave structure and thrust variation of a ram accelerator with different projectile velocities.AEROSPACE SCIENCE AND TECHNOLOGY,143,8.
MLA	Shang, Jiahao,et al."Detonation wave structure and thrust variation of a ram accelerator with different projectile velocities".AEROSPACE SCIENCE AND TECHNOLOGY 143(2023):8.