The dual information preserving method for stiff reacting flows
文献类型：期刊论文
| 作者 | Liu, Li; Shen YQ(申义庆) ; Liu, Shengping; Yu, Ming; Shen, YQ (reprint author), Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China.
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| 刊名 | COMPUTERS & FLUIDS
 |
| 出版日期 | 2017-11-03 |
| 卷号 | 157页码:253-275 |
| 关键词 | Stiff Reacting Flow Dual Information Preserving Method Numerical Perturbation Method Shock-capturing Scheme |
| ISSN号 | 0045-7930 |
| DOI | 10.1016/j.compfluid.2017.09.001 |
| 文献子类 | Article |
| 英文摘要 | In this paper, we construct a new numerical method to solve the reactive Euler equations to cure the numerical stiffness problem. The species mass equations are first decoupled from the reactive Euler equations, and then they are further fractionated into the convection step and the reaction step. In the convection step, by introducing two kinds of Lagrangian points (cell-point and particle-point), a dual information preserving (DIP) method is proposed to resolve the convection characteristics. In this new method, the information (including the transport value and the relative coordinates to the center of the current cell) of the cell-point and that of the particle-point are updated according to the velocity field. The information of the cell-point in a cell can effectively restrict the incorrect reaction activation caused by the numerical dissipation, while the information of the particle-point can help to preserve the sharp shock front once the strong shock waves are formed. Hence, by using the DIP method, the spurious numerical propagation phenomenon in stiff reacting flows is effectively eliminated. In addition, a numerical perturbation method is also developed to solve the fractional reaction step (ODE equation) to improve the stability and efficiency. A series of numerical examples are presented to validate the accuracy and robustness of the new method. (C) 2017 Elsevier Ltd. All rights reserved. |
| 分类号 | 二类/Q1 |
| 语种 | 英语 |
| WOS记录号 | WOS:000413380300018 |
| 资助机构 | This research work was supported by NSAF U1530145, 2016YFA0401200, NSFC No. 11272325 and 11272324. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60935]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 通讯作者 | Shen, YQ (reprint author), Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Liu, Li,Shen YQ,Liu, Shengping,et al. The dual information preserving method for stiff reacting flows[J]. COMPUTERS & FLUIDS,2017,157:253-275. |
| APA | Liu, Li,申义庆,Liu, Shengping,Yu, Ming,&Shen, YQ .(2017).The dual information preserving method for stiff reacting flows.COMPUTERS & FLUIDS,157,253-275. |
| MLA | Liu, Li,et al."The dual information preserving method for stiff reacting flows".COMPUTERS & FLUIDS 157(2017):253-275. |
入库方式： OAI收割
来源：力学研究所
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