| 无网格等离子体静电模粒子模拟方法 |
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| 引用本文： | 银燕,常文蔚,马燕云,岳宗五,曹莉华,徐涵.无网格等离子体静电模粒子模拟方法[J].计算物理,2001,18(3):263-270. |
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| 作者姓名： | 银燕 常文蔚 马燕云 岳宗五 曹莉华 徐涵 |
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| 作者单位： | 国防科技大学理学院应用物理系, 湖南 长沙 410073 |
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| 基金项目： | 国家863高技术惯性约束聚变主题资助项目 |
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| 摘 要： | 介绍了一种无网格粒子模拟方法:三维快速多极展开方法(3DFMM),对其进行改进以提高精度.在低维粒子模拟中,采用具有低维运动的球粒子模型.模拟了尘埃粒子在背景等离子体中产生的势场,以及等离子体中电子相对于离子运动所引起的不稳定性,并得到合理的物理图象.
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| 关 键 词： | FMM 无网格 粒子模拟 |
| 文章编号： | 1001-246(2001)03-0263-08 |
| 收稿时间： | 1999-12-01 |
| 修稿时间： | 1999年12月1日 |
GRIDLESS PARTICLE SIMULATION OF ELECTROSTATIC PLASMAS |
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| YIN Yan,CHANG Wen-wei,MA Yan-yun,YUE Zong-wu,CAO Li-hua,XU Han.GRIDLESS PARTICLE SIMULATION OF ELECTROSTATIC PLASMAS[J].Chinese Journal of Computational Physics,2001,18(3):263-270. |
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| Authors: | YIN Yan CHANG Wen-wei MA Yan-yun YUE Zong-wu CAO Li-hua XU Han |
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| Institution: | Department of Applied Physics, National University of Defense Technology, Changsha 410073, P R China |
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| Abstract: | The 3-D Fast Multipole Method, a kind of gridless particle simulation method, is described and improved to obtain higher accuracy. A spherical particle with reduced dimensional motion model is presented. As examples, the spatial distribution of the potential in dust plasma and the instability produced by electrons streaming through ions are simulated. The results of simulations are in agreement with the theory. |
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| Keywords: | FMM gridless particle simulation |
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