论文信息 - Parallel Performance of a Discontinuous Galerkin Spectral Element Method Based PIC-DSMC Solver

Parallel Performance of a Discontinuous Galerkin Spectral Element Method Based PIC-DSMC Solver

Particle based methods are required to simulate rarefied, reactive plasma flows. A combined Particle-in-Cell Direct Simulation Monte Carlo method is used here, allowing the modelling of electromagnetic interactions and collision processes. The electromagnetic field solver of the Particle-in-Cell method has been improved by switching to a discontinuous Galerkin spectral element method. The method offers a high parallelization efficiency, which is demonstrated in this paper. In addition, the parallel performances of the complete Particle-in-Cell module and the Direct Simulation Monte Carlo module are presented.

[1] M. Carpenter,et al. Fourth-order 2N-storage Runge-Kutta schemes , 1994 .

[2] R W Hockney,et al. Computer Simulation Using Particles , 1966 .

[3] C. Birdsall,et al. Plasma Physics via Computer Simulation , 2018 .

[4] Claus-Dieter Munz,et al. Comparison of coupling techniques in a high-order discontinuous Galerkin-based particle-in-cell solver , 2011 .

[5] G. Bird. Molecular Gas Dynamics and the Direct Simulation of Gas Flows , 1994 .

[6] Claus-Dieter Munz,et al. Explicit Discontinuous Galerkin methods for unsteady problems , 2012 .

[7] J. Mcdonald,et al. A collision-selection rule for a particle simulation method suited to vector computers , 1990 .

[8] Gregor Gassner,et al. A Comparison of the Dispersion and Dissipation Errors of Gauss and Gauss-Lobatto Discontinuous Galerkin Spectral Element Methods , 2011, SIAM J. Sci. Comput..

[9] Jan S. Hesthaven,et al. High-order nodal discontinuous Galerkin particle-in-cell method on unstructured grids , 2006, J. Comput. Phys..