Modeling of Long-Range Intra- and Inter-Species Charged Particle Collisions for PIC Simulations

作     者：D.D’Andrea C.-D.Munz R.Schneider 

作者机构：Forschungszentrum Karlsruhe-in der Helmholtz-GemeinschaftInstitut fur Kern-und EnergietechnikPF 3640D-76021 KarlsruheGermany Institut fur Aerodynamik und GasdynamikUniversitat StuttgartPfaffenwaldring 21D-70550 StuttgartGermany Forschungszentrum Karlsruhe-in der Helmholtz-GemeinschaftInstitut fur Hochleistungsimpuls und MikrowellentechnikPF 3640D-76021 KarlsruheGermany 

出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)

年 卷 期：2010年第7卷第5期

页      面：877-903页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：Landesstiftung Baden-Wurttemberg Deutsche Forschungsgemeinschaft (DFG) Forschungszentrum Karlsruhe 

主　　题：Coulomb collisions in plasmas collisional relaxation Fokker-Planck equation stochastic differential equation particle-in-cell method 

摘      要：In this paper we present the modelling of elastic intra-species electron-electron and inter-species electron-ion scattering in a plasma on the basis of the FokkerPlanck collision *** into account the equivalence of this operator with a stochastic differential equation,we propose a Particle-in-Cell based approach for the numerical solution of the Fokker-Planck collision *** we will see,the introduced numerical concept allows the simulation of the collisional relaxation process in a fully self-consistent fashion.