| 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)
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| Source Publication | CHINESE PHYSICS B
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| 2018-08-01 | |
| Volume | 27Issue:8Pages:84703 |
| ISSN | 1674-1056 |
| Abstract | 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. |
| Keyword | deflagration detonation deflagration-to-detonation transition |
| DOI | 10.1088/1674-1056/27/8/084703 |
| URL | 查看原文 |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000442028300003 |
| WOS Keyword | HYDROGEN-OXYGEN MIXTURE ; FLAME ACCELERATION ; REPEATED OBSTACLES ; MECHANISM ; ONSET ; EXPLOSIONS ; CHANNELS |
| WOS Research Area | Physics, Multidisciplinary |
| WOS Subject | Physics |
| Funding Organization | National Natural Science Foundation of China [11672312, 11532014] |
| Classification | Q3 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/77834 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 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 |
| 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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| IrJ2018220.pdf（699KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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