中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Resolving the shock-induced combustion by an adaptive mesh redistribution method

文献类型:期刊论文

作者Yuan, Li; Tang, Tao
刊名JOURNAL OF COMPUTATIONAL PHYSICS
出版日期2007-06-10
卷号224期号:2页码:587-600
关键词adaptive mesh redistribution monitor function chemically reacting flow shock-induced combustion
ISSN号0021-9991
DOI10.1016/j.jcp.2006.10.006
英文摘要An adaptive mesh method is presented for numerical simulation of shock-induced combustion. The method is composed of two independent ingredients: a flow solver and a mesh redistribution algorithm. The flow solver is a finite-volume based second-order upwind TVD scheme, together with a lower-upper symmetric Gauss-Seidel relaxation scheme for solving the multispecies Navier-Stokes equations with finite rate chemistry. The adaptive mesh is determined by a grid generation method based on solving Poisson equations, with the monitor function carefully designed to resolve both sharp fronts and the induction zone between them. Numerically it is found that the resolution of the induction zone is particularly critical to the combustion problems, and an under-resolved numerical method may cause excessive energy release and spurious runaway reactions. The monitor function proposed in this paper, which is based on the relative rate of change of mass fraction, covered this issue satisfactorily. Numerical simulations of supersonic flows past an axisymmetric projectile in a premixed hydrogen/oxygen (or air) mixture are carried out. The results show that the spurious runaway chemical reactions appearing on coarse grids can be eliminated by using adaptive meshes without invoking any ad hoc treatment for reaction rates. The adaptive mesh approach is more effective than the fixed mesh one in obtaining grid-independent results. Finally, discrepancies between the numerical and benchmark experimental results and difficulties in simulating the detonation waves are delineated which appeal for further investigation. (c) 2006 Elsevier Inc. All rights reserved.
WOS研究方向Computer Science ; Physics
语种英语
WOS记录号WOS:000247325400007
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
源URL[http://ir.amss.ac.cn/handle/2S8OKBNM/4790]  
专题计算数学与科学工程计算研究所
通讯作者Yuan, Li
作者单位1.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math, LSEC, Beijing 100080, Peoples R China
2.Hong Kong Baptist Univ, Dept Math, Kowloon Tong, Hong Kong, Peoples R China
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Yuan, Li,Tang, Tao. Resolving the shock-induced combustion by an adaptive mesh redistribution method[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2007,224(2):587-600.
APA Yuan, Li,&Tang, Tao.(2007).Resolving the shock-induced combustion by an adaptive mesh redistribution method.JOURNAL OF COMPUTATIONAL PHYSICS,224(2),587-600.
MLA Yuan, Li,et al."Resolving the shock-induced combustion by an adaptive mesh redistribution method".JOURNAL OF COMPUTATIONAL PHYSICS 224.2(2007):587-600.

入库方式: OAI收割

来源:数学与系统科学研究院

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