Particle simulation of coulomb collisions: Comparing the methods of Takizuka & Abe and nanbu

被引：48

作者：

Wang, Chiaming ^{[1
]}

Lin, Tungyou ^{[1
]}

Caflisch, Russel ^{[1
]}

Cohen, Bruce I. ^{[2
]}

Dimits, Andris M. ^{[2
]}

机构：

[1] Univ Calif Los Angeles, Dept Math, Los Angeles, CA 90036 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

JOURNAL OF COMPUTATIONAL PHYSICS | 2008年 / 227卷 / 09期

关键词：

D O I：

10.1016/j.jcp.2007.12.027

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The interactions of charged particles in a plasma are governed by long-range Coulomb collision. We compare two widely used Monte Carlo models for Coulomb collisions. One was developed by Takizuka and Abe in 1977, the other was developed by Nanbu in 1997. We perform deterministic and statistical error analysis with respect to particle number and time step. The two models produce similar stochastic errors, but Nanbu's model gives smaller time step errors. Error comparisons between these two methods are presented. Published by Elsevier Inc.

引用

页码：4308 / 4329

页数：22

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