Effects of the scalar dissipation rate on the steady laminar flamelet model

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	Effects of the scalar dissipation rate on the steady laminar flamelet model
	Zhang J(张健); Jin GD(晋国栋); He GW(何国威)
刊名	Physica Scripta
	2010-12
通讯作者邮箱	hgw@lnm.imech.ac.cn
卷号	T142 页码:014048/1-014048/5
ISSN号	0031-8949
通讯作者	Zhang, JA (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
产权排序	[Zhang, Jian; Jin, Guodong; He, Guowei] Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China
中文摘要	The effects of the scalar dissipation rate (SDR) on the quenching points of the steady laminar flamelet model at different stoichiometric ratios of reactants are investigated for a one-step reversible reaction with the Arrhenius rate. SDRs are either presumed uniform or modeled by the mapping closure approach. With these two models, steady flamelet equations are solved in mixture-fraction space, and complete 'S-shaped' curves are obtained. The results show that the SDR models affect the locus of the 'S-shaped' curves and the quenching points are remarkably different. The quenching state is reached at a lower chi(st) for chi = chi(st) but at a higher chi(st) for chi = chi(st)exp[ -2 erfc(-1) (2z)(2)]. However, when the flame state is far from the quenching point, the difference in 'S-shaped' curves is small. This result is associated with the mixed state of the reactants; the poorer the mixing, the more remarkable the difference in 'S-shaped' curves becomes.
学科主题	化工流体力学
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	PREMIXED TURBULENT COMBUSTION ; EXTINCTION ; SIMULATION ; PROGRESS
收录类别	SCI ; EI
原文出处	http://dx.doi.org/10.1088/0031-8949/2010/T142/014048
语种	英语
WOS记录号	WOS:000285777700050
公开日期	2014-04-04
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/48715]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Zhang J,Jin GD,He GW. Effects of the scalar dissipation rate on the steady laminar flamelet model[J]. Physica Scripta,2010,T142:014048/1-014048/5.
APA	张健,晋国栋,&何国威.(2010).Effects of the scalar dissipation rate on the steady laminar flamelet model.Physica Scripta,T142,014048/1-014048/5.
MLA	张健,et al."Effects of the scalar dissipation rate on the steady laminar flamelet model".Physica Scripta T142(2010):014048/1-014048/5.