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Theoretical analysis on deflagration-to-detonation transition

文献类型：期刊论文

作者Liu YF(刘云峰); Shen H(沈还); Zhang DL(张德良); Jiang ZL(姜宗林)
刊名CHINESE PHYSICS B
出版日期2018-08-01
卷号27期号:8页码:84703
关键词deflagration detonation deflagration-to-detonation transition
ISSN号1674-1056
DOI10.1088/1674-1056/27/8/084703
英文摘要The study on deflagration-to-detonation transition (DDT) is very important because this mechanism has relevance to safety issues in industries, where combustible premixed gases are in general use. However, the quantitative prediction of DDT is one of the major unsolved problems in combustion and detonation theory to date. In this paper, the DDT process is studied theoretically and the critical condition is given by a concise theoretical expression. The results show that a deflagration wave propagating with about 60% Chapman-Jouguet (CJ) detonation velocity is a critical condition. This velocity is the maximum propagating velocity of a deflagration wave and almost equal to the sound speed of combustion products. When this critical condition is reached, a CJ detonation is triggered immediately. This is the quantitative criteria of the DDT process.
分类号Q3
URL标识查看原文
WOS关键词HYDROGEN-OXYGEN MIXTURE ; FLAME ACCELERATION ; REPEATED OBSTACLES ; MECHANISM ; ONSET ; EXPLOSIONS ; CHANNELS
WOS研究方向Physics, Multidisciplinary
语种英语
WOS记录号WOS:000442028300003
资助机构National Natural Science Foundation of China [11672312, 11532014]
源URL[http://dspace.imech.ac.cn/handle/311007/77834]  
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.[Liu, Yun-Feng
2.Shen, Huan
3.Zhang, De-Liang
4.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
5.[Liu, Yun-Feng
6.Shen, Huan
7.Zhang, De-Liang
8.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Liu YF,Shen H,Zhang DL,et al. Theoretical analysis on deflagration-to-detonation transition[J]. CHINESE PHYSICS B,2018,27(8):84703.
APA 刘云峰,沈还,张德良,&姜宗林.(2018).Theoretical analysis on deflagration-to-detonation transition.CHINESE PHYSICS B,27(8),84703.
MLA 刘云峰,et al."Theoretical analysis on deflagration-to-detonation transition".CHINESE PHYSICS B 27.8(2018):84703.

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来源：力学研究所

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