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Theoretical analysis on deflagration-to-detonation transition
Liu YF(刘云峰); Shen H(沈还); Zhang DL(张德良); Jiang ZL(姜宗林)
2018-08-01
发表期刊CHINESE PHYSICS B
卷号27期号:8页码:84703
ISSN1674-1056
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.
关键词deflagration detonation deflagration-to-detonation transition
DOI10.1088/1674-1056/27/8/084703
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000442028300003
关键词[WOS]HYDROGEN-OXYGEN MIXTURE ; FLAME ACCELERATION ; REPEATED OBSTACLES ; MECHANISM ; ONSET ; EXPLOSIONS ; CHANNELS
WOS研究方向Physics, Multidisciplinary
WOS类目Physics
项目资助者National Natural Science Foundation of China [11672312, 11532014]
论文分区Q3
力学所作者排名1
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77834
专题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
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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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