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Chinese Academy of Sciences Institutional Repositories Grid
A Modified Characteristic-Wise WENO Reconstruction for Capturing the Contact Discontinuity in Multi-Component Flows

文献类型:期刊论文

作者Tan JY(覃建宇)1,2; Shen YQ(申义庆)1,2; Cheng Y(程毅)1,2; Zhou B(周彪)1,2
刊名COMMUNICATIONS IN COMPUTATIONAL PHYSICS
出版日期2025-09-01
卷号38期号:3页码:766-790
关键词Contact discontinuity flux difference splitting method WENO scheme characteristic-wise reconstruction multi-component flow
ISSN号1815-2406
DOI10.4208/cicp.OA-2024-0138
通讯作者Shen, Yiqing(yqshen@imech.ac.cn)
英文摘要The flux difference splitting (FDS) combined with the characteristic-wise weighted essentially non-oscillatory (WENO) reconstruction in single-component flow simulations is quite attractive and preferred for its better non-oscillatory feature near discontinuities. However, when compressible multi-component flows are simulated, the FDS with the characteristic-wise WENO reconstruction may cause spurious oscillations. In this work, we analyze the reason that the oscillations are generated. A new method, which can effectively suppress this kind of spurious oscillations in multi-component flows, is proposed by modifying the total energy in the process of the WENO reconstruction. For example, in the fifth-order WENO reconstruction, on the global stencil S5= (j-2, j-1, ,j+2) used to reconstruct the left-side value UjL+1/2, the total energy values are first modified by using the reconstructed value of the specific heat ratio (i.e., gamma jL+1/2, which can be directly reconstructed from the transport equation of the mass fraction), and then the characteristic-wise WENO reconstruction process is implemented. Numerical examples including several one-, two and threedimensional multi-component flows confirm the effectiveness and robustness of the proposed method.
分类号一类
WOS关键词FINITE-DIFFERENCE METHOD ; GAS-DYNAMICS ; SCHEME ; IMPLEMENTATION ; PRESSURE ; OSCILLATIONS ; FORMULATION ; EQUATIONS
资助项目NSFC[12172364] ; NSFC[11872097] ; NSFC[91852203]
WOS研究方向Physics
语种英语
WOS记录号WOS:001572053600007
资助机构NSFC
其他责任者申义庆
源URL[http://dspace.imech.ac.cn/handle/311007/103931]  
专题力学研究所_高温气体动力学国家重点实验室
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714
Tan JY,Shen YQ,Cheng Y,et al. A Modified Characteristic-Wise WENO Reconstruction for Capturing the Contact Discontinuity in Multi-Component Flows[J]. COMMUNICATIONS IN COMPUTATIONAL PHYSICS,2025,38(3):766-790.
APA 覃建宇,申义庆,程毅,&周彪.(2025).A Modified Characteristic-Wise WENO Reconstruction for Capturing the Contact Discontinuity in Multi-Component Flows.COMMUNICATIONS IN COMPUTATIONAL PHYSICS,38(3),766-790.
MLA 覃建宇,et al."A Modified Characteristic-Wise WENO Reconstruction for Capturing the Contact Discontinuity in Multi-Component Flows".COMMUNICATIONS IN COMPUTATIONAL PHYSICS 38.3(2025):766-790.

入库方式: OAI收割

来源:力学研究所

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