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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.
Source PublicationINTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION
2012-04-01
Volume13Issue:2Pages:177-188
ISSN1565-1339
AbstractIn 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.
KeywordEulerian-lagrangian Model Two-phase Flow Liquid-fueled Detonation Ce/se Scheme Improved Ce/se Scheme Time Conservation Element Droplets Evolution Flames Cloud Wave
Subject Area计算流体力学
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Indexed BySCI
Language英语
WOS IDWOS:000310334200009
Funding OrganizationThe authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (Grant Nos. 10732010 and 10972010).
DepartmentLHD激波与爆轰物理
ClassificationQ3
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46543
Collection高温气体动力学国家重点实验室
Corresponding AuthorLiu, KX; Peking Univ, Coll Engn, LTCS, Beijing 100871, Peoples R China.
Recommended Citation
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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