An efficient approach to achieve flame acceleration and transition to detonation

doi:10.1063/5.0048100

GIEC OpenIR

	An efficient approach to achieve flame acceleration and transition to detonation
	Li, Tao1,2 ; Wang, Xiaohan1,2 ; Xu, Baopeng 3; Kong, Fanfu 3
	2021-05-01
Source Publication	PHYSICS OF FLUIDS
ISSN	1070-6631
Volume	33 Issue:5 Pages:14
Corresponding Author	Wang, Xiaohan(wangxh@ms.giec.ac.cn) ; Xu, Baopeng(baopengxu@dlut.edu.cn)
Abstract	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.
DOI	10.1063/5.0048100
WOS Keyword	COMBUSTION ; CHANNELS ; SIMULATION ; OBSTACLES ; MIXTURES ; DDT ; INITIATION ; IGNITION ; SOLVER
Indexed By	SCI
Language	英语
Funding Project	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA 21060102] ; National Key R&D Program of China[2018YFB1501500]
WOS Research Area	Mechanics ; Physics
Funding Organization	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key R&D Program of China
WOS Subject	Mechanics ; Physics, Fluids & Plasmas
WOS ID	WOS:000677502500002
Publisher	AMER INST PHYSICS
Citation statistics	Cited Times:14[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.giec.ac.cn/handle/344007/33503
Collection	中国科学院广州能源研究所
Corresponding Author	Wang, Xiaohan; Xu, Baopeng
Affiliation	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
First Author Affilication	GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation 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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