Experimental studies on the three-dimensional effects of opposed-flow flame spread over thin solid materials

doi:10.1016/j.combustflame.2010.10.004

IMECH-IR > 微重力重点实验室

	Experimental studies on the three-dimensional effects of opposed-flow flame spread over thin solid materials
	Zhang X(张夏); Yu Y(于泳); Zhang, X (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China, Peoples R China
发表期刊	Combustion and Flame
	2011
卷号	158 期号:6 页码:1193-1200
ISSN	0010-2180
摘要	The three-dimensional effects of flame spread over thin solid materials were experimentally studied using a natural-convection-suppressing horizontal narrow-channel. In a sufficiently wide narrow-channel, the variation of flame spread against the width of the material sample showed different trends for different gas flow speeds and oxygen concentrations. The extent of three-dimensional effects was inversely proportional to the gas flow speed or its square. Near quenching extinction limits, the effects were significant because weak combustion is sensitive to a slight variation of heat loss and oxygen concentration. The effects may be due to different factors such as side heat loss, side oxygen diffusion, or both. Far away from quenching extinction limits, the effects were weak because vigorous combustion is insensitive to a small variation of oxygen concentration and heat loss. In all tests, the effects were limited to the samples of width less than 10 times of the diffusion length. Moreover, a higher oxygen concentration suppressed the effects at a lower gas flow speed. For sufficiently wide samples, in the most range of gas flow speeds, the channel width had almost no effect on flame spread. However, near extinction limits, the flame spread rate decreased with the increasing channel width. (C) 2010 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
关键词	Opposed-flow Flame Spread Three-dimensional Effect Thin Solid Material Narrow-channel Microgravity Model
学科领域	Thermodynamics ; Energy & Fuels ; Engineering
DOI	10.1016/j.combustflame.2010.10.004
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000289821800019
关键词[WOS]	MICROGRAVITY ; MODEL
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering
WOS类目	Thermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical ; Engineering, Mechanical
项目资助者	The author thanks Prof. Wenrui Hu of Institute of Mechanics, Chinese Academy of Sciences for his invaluable advice. This work was supported by Chinese Academy of Sciences (CAS) Innovation Program and National Science Foundation of China (NSFC Grant No. 10702009).
课题组名称	NML复杂流体
论文分区	一类
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/45083
专题	微重力重点实验室
通讯作者	Zhang, X (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China, Peoples R China
推荐引用方式 GB/T 7714	Zhang X,Yu Y,Zhang, X . Experimental studies on the three-dimensional effects of opposed-flow flame spread over thin solid materials[J]. Combustion and Flame,2011,158,6,:1193-1200.
APA	张夏,于泳,&Zhang, X .(2011).Experimental studies on the three-dimensional effects of opposed-flow flame spread over thin solid materials.Combustion and Flame,158(6),1193-1200.
MLA	张夏,et al."Experimental studies on the three-dimensional effects of opposed-flow flame spread over thin solid materials".Combustion and Flame 158.6(2011):1193-1200.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
SCI-J2011151.pdf（1070KB）			开放获取	--	浏览下载