Year: 2013
Communications in Computational Physics, Vol. 14 (2013), Iss. 5 : pp. 1347–1371
Abstract
In this paper, a gas kinetic scheme for the compressible multicomponent flows is presented by making use of two-species BGK model in [A. D. Kotelnikov and D. C. Montgomery, A Kinetic Method for Computing Inhomogeneous Fluid Behavior, J. Comput. Phys. 134 (1997) 364-388]. Different from the conventional BGK model, the collisions between different species are taken into consideration. Based on the Chapman-Enskog expansion, the corresponding macroscopic equations are derived from this two-species model. Because of the relaxation terms in the governing equations, the method of operator splitting is applied. In the hyperbolic part, the integral solutions of the BGK equations are used to construct the numerical fluxes at the cell interface in the framework of finite volume method. Numerical tests are presented in this paper to validate the current approach for the compressible multicomponent flows. The theoretical analysis on the spurious oscillations at the interface is also presented.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/cicp.280312.210313a
Communications in Computational Physics, Vol. 14 (2013), Iss. 5 : pp. 1347–1371
Published online: 2013-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 25
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GKS and UGKS for High-Speed Flows
Zhu, Yajun
Zhong, Chengwen
Xu, Kun
Aerospace, Vol. 8 (2021), Iss. 5 P.141
https://doi.org/10.3390/aerospace8050141 [Citations: 8]