A Discontinuous Galerkin Method for Ideal Two-Fluid Plasma Equations

Details A Discontinuous Galerkin Method for Ideal Two-Fluid Plasma Equations A Discontinuous Galerkin Method for Ideal Two-Fluid Plasma Equations

2010-03-23

arxiv.org/abs/1003.4542v1

Physics

Plasma Physics

40 pages, 18 figures.

Scientific paper

A discontinuous Galerkin method for the ideal 5 moment two-fluid plasma system is presented. The method uses a second or third order discontinuous Galerkin spatial discretization and a third order TVD Runge-Kutta time stepping scheme. The method is benchmarked against an analytic solution of a dispersive electron acoustic square pulse as well as the two-fluid electromagnetic shock and existing numerical solutions to the GEM challenge magnetic reconnection problem. The algorithm can be generalized to arbitrary geometries and three dimensions. An approach to maintaining small gauge errors based on error propagation is suggested.

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