A fully implicit scheme for simulating ionized gas flows using the gas dynamics electrodynamics coupled system

摘要: SUMMARY The flow of ionized gases under the influence electromagnetic fields is governed by coupled system compressible equations and Maxwell equations. In this system, coupling with field obtained through nonlinear stiff source terms, which may cause difficulties numerical solution system. The discontinuous Galerkin finite element method used for For magnetic vector, discretization performed using a divergence-free vector base to preserve zero divergence in retain implicit constraint down very low level both globally locally. To circumvent resulting from presence time marching fully avoid wrong wave shapes propagation speeds that are when terms lagged or splitting iterative schemes. Numerical solutions benchmark problems computed on collocated meshes variables monolithic approach showed good agreement other exact results. Copyright © 2014 John Wiley & Sons, Ltd.