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physics.comp-ph2021★ 4 cited
A Novel Finite Difference Method for Euler Equations in 2D Unstructured Meshes
Meiyuan Zhen, Kun Qu, Jinsheng Cai
Finite difference method was extended to unstructured meshes to solve Euler equations. The spatial discretization is made of two steps. First, numerical fluxes are computed at the…
physics.comp-ph2020
A sufficient condition for free-stream preserving in the nonlinear conservative finite difference schemes on curvilinear grids
Hongmin Su, Jinsheng Cai, Kun Qu +1
In simulations of compressible flows, the conservative finite difference method (FDM) based on the nonlinear upwind schemes, e.g. WENO5, might violate free-stream preserving (FP),…