An efficient approach to achieve flame acceleration and transition to detonation

doi:10.1063/5.0048100

	An efficient approach to achieve flame acceleration and transition to detonation
	Li, Tao 1,3; Wang, Xiaohan 1,3; Xu, Baopeng 2; Kong, Fanfu 2
刊名	PHYSICS OF FLUIDS
	2021-05-01
卷号	33 期号:5 页码:14
ISSN号	1070-6631
DOI	10.1063/5.0048100
通讯作者	Wang, Xiaohan(wangxh@ms.giec.ac.cn) ; Xu, Baopeng(baopengxu@dlut.edu.cn)
英文摘要	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.
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关键词	COMBUSTION ; CHANNELS ; SIMULATION ; OBSTACLES ; MIXTURES ; DDT ; INITIATION ; IGNITION ; SOLVER
WOS研究方向	Mechanics ; Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000677502500002
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33502]
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, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
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.