Numerical investigation on the initiation of oblique detonation waves in stoichiometric acetylene-oxygen mixtures with high argon dilution

doi:10.1016/j.combustflame.2019.03.033

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

	Numerical investigation on the initiation of oblique detonation waves in stoichiometric acetylene-oxygen mixtures with high argon dilution
	Zhang YH; Fang YS(方宜申); Ng HD; Teng HH(滕宏辉)
刊名	COMBUSTION AND FLAME
	2019-06-01
卷号	204 页码:391-396
关键词	Oblique detonation Acetylene-oxygen mixture Argon dilution Initiation structure
ISSN号	0010-2180
DOI	10.1016/j.combustflame.2019.03.033
通讯作者	Teng, Honghui(hhteng@bit.edu.cn)
英文摘要	Oblique detonation waves (ODWs) in stoichiometric acetylene-oxygen mixtures, highly diluted by 81-90% argon, are studied using the reactive Euler equations with a detailed chemistry model. Numerical results show that the incident Mach number M-0 changes the ODW initiation structure, giving both the smooth transition in the case of M-0 = 10 and the abrupt transition in the case of M-0 = 7. By comparing results of numerical simulation and theoretical analysis, the initiation processes are found to be chemical kinetics-controlled regardless of M-0, different from those in hydrogen-air mixtures which are wave-controlled in the low M-0 regime. The argon dilution effect on the initiation morphology is investigated, showing that the structures are determined by the dilution ratio and M-0 collectively. However, the initiation length is found to be independent of the dilution ratio and only determined by M-0, which is attributed to the competing effect of the high density and high temperature. (C) 2019 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
分类号	一类/力学重要期刊
资助项目	National Natural Science Foundation of China, NSFC[11822202] ; National Natural Science Foundation of China, NSFC[91641130] ; Natural Sciences and Engineering Research Council of Canada, NSERC[RGPIN-2017-06698]
WOS关键词	STABILITY ; INSTABILITY ; PARAMETERS ; MECHANISM ; PATTERN ; TUBES
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering
语种	英语
WOS记录号	WOS:000468377000033
资助机构	National Natural Science Foundation of China, NSFC ; Natural Sciences and Engineering Research Council of Canada, NSERC
其他责任者	Teng, Honghui
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/80690]
专题	力学研究所_高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Zhang YH,Fang YS,Ng HD,et al. Numerical investigation on the initiation of oblique detonation waves in stoichiometric acetylene-oxygen mixtures with high argon dilution[J]. COMBUSTION AND FLAME,2019,204:391-396.
APA	Zhang YH,方宜申,Ng HD,&滕宏辉.(2019).Numerical investigation on the initiation of oblique detonation waves in stoichiometric acetylene-oxygen mixtures with high argon dilution.COMBUSTION AND FLAME,204,391-396.
MLA	Zhang YH,et al."Numerical investigation on the initiation of oblique detonation waves in stoichiometric acetylene-oxygen mixtures with high argon dilution".COMBUSTION AND FLAME 204(2019):391-396.