@Article{AAMM-8-5, author = {Yu, Sun and Shu, Chang and Yang, Liming and Teo, J., C.}, title = {A Switch Function-Based Gas-Kinetic Scheme for Simulation of Inviscid and Viscous Compressible Flows}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2016}, volume = {8}, number = {5}, pages = {703--721}, abstract = {

In this paper, a switch function-based gas-kinetic scheme (SF-GKS) is presented for the simulation of inviscid and viscous compressible flows. With the finite volume discretization, Euler and Navier-Stokes equations are solved and the SF-GKS is applied to evaluate the inviscid flux at cell interface. The viscous flux is obtained by the conventional smooth function approximation. Unlike the traditional gas-kinetic scheme in the calculation of inviscid flux such as Kinetic Flux Vector Splitting (KFVS), the numerical dissipation is controlled with a switch function in the present scheme. That is, the numerical dissipation is only introduced in the region around strong shock waves. As a consequence, the present SF-GKS can well capture strong shock waves and thin boundary layers simultaneously. The present SF-GKS is firstly validated by its application to the inviscid flow problems, including 1-D Euler shock tube, regular shock reflection and double Mach reflection. Then, SF-GKS is extended to solve viscous transonic and hypersonic flow problems. Good agreement between the present results and those in the literature verifies the accuracy and robustness of SF-GKS.

}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.2015.m1071}, url = {https://global-sci.com/article/73355/a-switch-function-based-gas-kinetic-scheme-for-simulation-of-inviscid-and-viscous-compressible-flows} }