作者: Andrew J. Christlieb , Xiao Feng , Yan Jiang , Qi Tang
DOI:
关键词: Applied mathematics 、 Cartesian coordinate system 、 Finite difference 、 Boundary value problem 、 Riemann solver 、 Solver 、 Mathematics 、 Boundary (topology) 、 Curvilinear coordinates 、 Taylor series
摘要: A high-order finite difference numerical scheme is developed for the ideal magnetohydrodynamic equations based on an alternative flux formulation of weighted essentially non-oscillatory (WENO) scheme. It computes a by Taylor expansion in space, with lowest-order term solved from Riemann solver and higher-order terms constructed physical fluxes limited central differences. The coupled several solvers, including Lax-Friedrichs HLL-type general curvilinear meshes two dimensions verified number benchmark problems. In particular, HLLD Cartesian extended to proper modifications. boundary condition perfect electrical conductor (PEC) derived geometry through bow shock flow. Numerical results also confirm advantages using low dissipative solvers current framework.