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An efficient approach to achieve flame acceleration and transition to detonation
Li, Tao1,2; Wang, Xiaohan1,2; Xu, Baopeng3; Kong, Fanfu3
2021-05-01
发表期刊PHYSICS OF FLUIDS
ISSN1070-6631
卷号33期号:5页码:14
通讯作者Wang, Xiaohan(wangxh@ms.giec.ac.cn) ; Xu, Baopeng(baopengxu@dlut.edu.cn)
摘要This paper presents a novel method to accelerate flame propagation and transition to detonation in a coiled channel. The objective is to bring to light the basic understanding of the phenomenon and to show its potential in the fields of highly efficient combustion or propulsion. It was found that the flame evolution in the coiled channel is significantly different from that in a straight channel. In the flame acceleration stage, the flame propagation velocity increases exponentially in the coiled channel while it increases linearly in the straight channel, primarily due to the existence of a strong velocity gradient in the transverse direction in the coiled channel. Deflagration to detonation transition (DDT) was only observed in the coiled channel under current settings, being triggered by a series of local explosions at the boundary layer. In general, the coiled channel can greatly accelerate the flame and shorten the distance of the DDT compared with the straight channel.
DOI10.1063/5.0048100
关键词[WOS]COMBUSTION ; CHANNELS ; SIMULATION ; OBSTACLES ; MIXTURES ; DDT ; INITIATION ; IGNITION ; SOLVER
收录类别SCI
语种英语
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA 21060102] ; National Key R&D Program of China[2018YFB1501500]
WOS研究方向Mechanics ; Physics
项目资助者Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key R&D Program of China
WOS类目Mechanics ; Physics, Fluids & Plasmas
WOS记录号WOS:000677502500002
出版者AMER INST PHYSICS
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/33503
专题中国科学院广州能源研究所
通讯作者Wang, Xiaohan; Xu, Baopeng
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
3.Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China
第一作者单位中国科学院广州能源研究所
推荐引用方式
GB/T 7714
Li, Tao,Wang, Xiaohan,Xu, Baopeng,et al. An efficient approach to achieve flame acceleration and transition to detonation[J]. PHYSICS OF FLUIDS,2021,33(5):14.
APA Li, Tao,Wang, Xiaohan,Xu, Baopeng,&Kong, Fanfu.(2021).An efficient approach to achieve flame acceleration and transition to detonation.PHYSICS OF FLUIDS,33(5),14.
MLA Li, Tao,et al."An efficient approach to achieve flame acceleration and transition to detonation".PHYSICS OF FLUIDS 33.5(2021):14.
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