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Improvement of weighted compact scheme with multi-step strategy for supersonic compressible flow
Peng J(彭峻); Shen YQ(申义庆); Shen, YQ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
发表期刊COMPUTERS & FLUIDS
2015-07-22
卷号115页码:2841-2849
ISSN0045-7930
摘要

With shock capturing capability and spectral like resolution, weighted compact schemes are good choices for supersonic turbulent flow simulation. However, because of the implicit nature of compact schemes, accuracy decrease at one point would contaminate the overall solution. The recently proposed compact-reconstructed WENO (CRWENO) scheme (Ghosh and Baeder, 2012) is an efficient weighted compact scheme. Analysis shows that the accuracy of the CRWENO scheme is only second order for points near discontinuities. In this paper, a multi-step strategy is proposed to increase the accuracy of the CRWENO scheme near discontinuities. Instead of constructing the fifth order compact scheme directly from three third order compact schemes, two fourth order compact schemes are first constructed. The final fifth order scheme is then obtained by these two fourth order schemes. In this way, the accuracy of the CRWENO scheme is increased to third order for points near discontinuities. The dissipation and dispersion properties of the new scheme are analyzed by employing the modified wave number method. Several examples, including linear advection cases, three one-dimensional shock tube problems, two-dimensional isentropic vortex convection, double Mach reflection, and shock/mixing layer interaction problems, are considered to assess the present method. Numerical results show that the present multi-step CRWENO scheme has lower dissipation and higher resolution in both smooth and discontinuous regions compared with the original scheme. (C) 2015 Elsevier Ltd. All rights reserved.

关键词Numerical Method Supersonic Compressible Flow Weighted Compact Scheme Multi-step Strategy
DOI10.1016/j.compfluid.2015.04.012
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000355773700019
WOS研究方向Computer Science ; Mechanics
WOS类目Computer Science, Interdisciplinary Applications ; Mechanics
项目资助者This research work was supported by the National Natural Science Foundation of China under Grant 11272325.
课题组名称LHD气动布局优化与计算方法
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被引频次:14[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/311007/58426
专题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, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714
Peng J,Shen YQ,Shen, YQ . Improvement of weighted compact scheme with multi-step strategy for supersonic compressible flow[J]. COMPUTERS & FLUIDS,2015,115:2841-2849.
APA Peng J,Shen YQ,&Shen, YQ .(2015).Improvement of weighted compact scheme with multi-step strategy for supersonic compressible flow.COMPUTERS & FLUIDS,115,2841-2849.
MLA Peng J,et al."Improvement of weighted compact scheme with multi-step strategy for supersonic compressible flow".COMPUTERS & FLUIDS 115(2015):2841-2849.
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