Numerical simulation of liquid-fueled detonations by an Eulerian-Lagrangian model

	Numerical simulation of liquid-fueled detonations by an Eulerian-Lagrangian model
	Shen H(申华); Wang G(王刚); Liu KX(刘凯欣); Zhang DL(张德良); Liu, KX; Peking Univ, Coll Engn, LTCS, Beijing 100871, Peoples R China.
发表期刊	INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION
	2012-04-01
卷号	13 期号:2 页码:177-188
ISSN	1565-1339
摘要	In this paper, an Eulerian-Lagrangian two-phase flow model for liquid-fueled detonations is constructed. The gaseous mixture is described by an Eulerian method, and liquid particles in gaseous mixture are traced by a Lagrangian method. An improved space-time conservation element and solution element (CE/SE) scheme is applied to the simulations of detonations in liquid C10H22O2/air systems. Different fuel droplet sizes and equivalence ratios are considered in the present study. Interestingly, the numerical results show that liquid-fueled detonations have some difference with gaseous detonations. Especially, a deficit in the propagation velocity compared to the gaseous detonation velocity is observed in mixtures with lean fuel and larger droplet sizes, while an increase in the propagation velocity compared to the gaseous detonation velocity is observed in the mixtures with very rich fuel. The surprising phenomenon is analyzed and discussed with the aid of detailed numerical results. In addition, the formation and propagation of two-phase detonation waves are characterized by series of results and the influence of particle radii is also discussed. All numerical results show that the present model can describe the gas-particle two-phase system accurately, and can be applied to numerical simulations of liquid-fueled detonations.
关键词	Eulerian-lagrangian Model Two-phase Flow Liquid-fueled Detonation Ce/se Scheme Improved Ce/se Scheme Time Conservation Element Droplets Evolution Flames Cloud Wave
学科领域	计算流体力学
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000310334200009
项目资助者	The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (Grant Nos. 10732010 and 10972010).
课题组名称	LHD激波与爆轰物理
论文分区	Q3
引用统计	被引频次：13[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/311007/46543
专题	高温气体动力学国家重点实验室
通讯作者	Liu, KX; Peking Univ, Coll Engn, LTCS, Beijing 100871, Peoples R China.
推荐引用方式 GB/T 7714	Shen H,Wang G,Liu KX,et al. Numerical simulation of liquid-fueled detonations by an Eulerian-Lagrangian model[J]. INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION,2012,13,2,:177-188.
APA	Shen H,Wang G,Liu KX,Zhang DL,Liu, KX,&Peking Univ, Coll Engn, LTCS, Beijing 100871, Peoples R China..(2012).Numerical simulation of liquid-fueled detonations by an Eulerian-Lagrangian model.INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION,13(2),177-188.
MLA	Shen H,et al."Numerical simulation of liquid-fueled detonations by an Eulerian-Lagrangian model".INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION 13.2(2012):177-188.

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