Numerical Study on the Propagation of Premixed Flames in Confined Narrow Disc-Shape Chambers

doi:10.1080/00102202.2018.1527829

	Numerical Study on the Propagation of Premixed Flames in Confined Narrow Disc-Shape Chambers
	Huo, Jiepeng 1,2; Su, Hang 1,2; Jiang, Liqiao 1; Zhao, Daiqing 1; Wang, Xiaohan 1
刊名	COMBUSTION SCIENCE AND TECHNOLOGY
	2019-08-03
卷号	191 期号:8 页码:1380-1404
关键词	Premixed flames N-butane micro combustion confined narrow gaps
ISSN号	0010-2202
DOI	10.1080/00102202.2018.1527829
通讯作者	Zhao, Daiqing(zhaodq@ms.giec.ac.cn) ; Wang, Xiaohan(wangxh@ms.giec.ac.cn)
英文摘要	The laminar flame propagation in narrow confined disc-shape chambers of millimeter scale is investigated, concerning the flame front displacement speed and the influences from the changes of the gap width and radius. An asymptotic analysis treating the flame front as a discontinuity successfully predicts the velocity profiles of the flame front and illustrates the importance of heat release parameter and laminar flame speed of the fuel. The unsteady flame propagation process is simulated by a full numerical computation which employs the n-butane/air mixture as the reactant. The numerical simulation emphasizes the sensitivity of spatial scale to the flame propagation in narrow spaces, indicating that the acceleration rate and the maximum speed of the flame have a non-monotonic relation with the gap width, of which the optimal value is about 0.8 mm. Faster flame propagation is favored for larger gap radius due to stronger flame straining, but it is restricted by the gap width.
资助项目	National Natural Science Foundation of China[51336010] ; National Basic Research Program of China[2014CB239601]
WOS关键词	LEWIS NUMBER ; ACCELERATING FLAMES ; COMBUSTION ; MECHANISMS ; EXPANSION ; OXIDATION ; CHANNELS ; NONSLIP ; ENGINE ; TUBES
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000474249200006
资助机构	National Natural Science Foundation of China ; National Basic Research Program of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/25281]
专题	中国科学院广州能源研究所
通讯作者	Zhao, Daiqing; Wang, Xiaohan
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou, Guangdong, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Huo, Jiepeng,Su, Hang,Jiang, Liqiao,et al. Numerical Study on the Propagation of Premixed Flames in Confined Narrow Disc-Shape Chambers[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2019,191(8):1380-1404.
APA	Huo, Jiepeng,Su, Hang,Jiang, Liqiao,Zhao, Daiqing,&Wang, Xiaohan.(2019).Numerical Study on the Propagation of Premixed Flames in Confined Narrow Disc-Shape Chambers.COMBUSTION SCIENCE AND TECHNOLOGY,191(8),1380-1404.
MLA	Huo, Jiepeng,et al."Numerical Study on the Propagation of Premixed Flames in Confined Narrow Disc-Shape Chambers".COMBUSTION SCIENCE AND TECHNOLOGY 191.8(2019):1380-1404.