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. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论