Study on the Mechanism of Detonation to Quasi-detonation Transition

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	Study on the Mechanism of Detonation to Quasi-detonation Transition
	Liu YF(刘云峰); Jiang ZL(姜宗林); Liu YF
	2010
会议名称	2nd International Symposium on Computational Mechanics
会议日期	NOV 30-DEC 03, 2009
通讯作者邮箱	yfliu.lhd@gmail.com
会议地点	Hong Kong, PEOPLES R CHINA
关键词	Detonation Quasi-Detonation Thermal Choking
页码	453-458
通讯作者	Liu YF
中文摘要	In this paper, the mechanism of detonation to quasi-detonation transition was discussed, a new physical model to simulate quasi-detonation was proposed, and one-dimensional theoretical and numerical simulation was conducted. This study firstly demonstrates that the quasi-detonation is of thermal choking. If the conditions of thermal choking are created by some disturbances, the supersonic flow is then unable to accept additional thermal energy, and the CJ detonation becomes the unstable quasi-detonation precipitately. The kinetic energy loss caused by this transition process is firstly considered in this new physical model. The numerical results are in good agreement with previous experimental observations qualitatively, which demonstrates that the quasi-detonation model is physically correct and the study are fundamentally important for detonation and supersonic combustion research.
收录类别	CPCI(ISTP)
会议网址	http://dx.doi.org/10.1063/1.3452214
会议录	ISCM II AND EPMESC XII, PTS 1 AND 2
语种	英语
ISSN号	0094-243X
ISBN号	978-0-7354-0778-7
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/44310]
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	Liu YF
推荐引用方式 GB/T 7714	Liu YF,Jiang ZL,Liu YF. Study on the Mechanism of Detonation to Quasi-detonation Transition[C]. 见:2nd International Symposium on Computational Mechanics. Hong Kong, PEOPLES R CHINA. NOV 30-DEC 03, 2009.http://dx.doi.org/10.1063/1.3452214.