计算物理 ›› 2007, Vol. 24 ›› Issue (6): 655-659.

• 论文 • 上一篇    下一篇

等离子体粒子模拟中的有效电流分配方法

银燕1, 常文蔚1, 徐涵2, 卓红斌2, 马燕云1   

  1. 1. 国防科技大学理学院物理系, 湖南 长沙 410073;
    2. 国防科技大学计算机学院重点实验室, 湖南 长沙 410073
  • 收稿日期:2006-06-05 修回日期:2007-01-18 出版日期:2007-11-25 发布日期:2007-11-25
  • 作者简介:银燕(1977-),女,湖北,副教授,博士,从事激光等离子体方面的研究.
  • 基金资助:
    国家自然科学基金(No.10576035,10505030,10505031,10605038);国防科技大学校预研资助项目

Charge-conserving Current Assignment Algorithm in Particle Simulation of Plasma

YIN Yan1, CHANG Wenwei1, XU Han2, ZHUO Hongbin2, MA Yanyun1   

  1. 1. College of Science, National University of Defense Technology, Changsha 410073, China;
    2. College of Computer, National University of Defense Technology, Changsha 410073, China
  • Received:2006-06-05 Revised:2007-01-18 Online:2007-11-25 Published:2007-11-25

摘要: 介绍Villasenor和Buneman提出的一种可以自动满足静电修正要求的有效电流分配方法.着重讨论在实际模拟中对出界粒子施加粒子边界条件时这种方法有效性的破坏,针对几种典型的粒子边界条件,提出相应的修正方案.模拟实例表明,采用此方法及修正方案后,得到的电磁场能自动地满足Poisson方程.

关键词: 粒子模拟, 静电修正, 电流分配算法, 粒子边界条件

Abstract: A charge-conserving current assignment algorithm based on current conservation equation proposed by Villasenor and Buneman is introduced.It is found that the algorithm is not available as particle boundary conditions are adopted. With typical boundary conditions amendment methods are proposed in which the simulation satifies charge conservation.

Key words: particle simulation, charge conservation, current weighting algorithm, particle boundary condition

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