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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)
Source PublicationCHINESE PHYSICS B
2018-08-01
Volume27Issue:8Pages:84703
ISSN1674-1056
AbstractThe 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.
Keyworddeflagration detonation deflagration-to-detonation transition
DOI10.1088/1674-1056/27/8/084703
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000442028300003
WOS KeywordHYDROGEN-OXYGEN MIXTURE ; FLAME ACCELERATION ; REPEATED OBSTACLES ; MECHANISM ; ONSET ; EXPLOSIONS ; CHANNELS
WOS Research AreaPhysics, Multidisciplinary
WOS SubjectPhysics
Funding OrganizationNational Natural Science Foundation of China [11672312, 11532014]
ClassificationQ3
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77834
Collection高温气体动力学国家重点实验室
Affiliation1.[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
Recommended Citation
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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