计算物理 ›› 1984, Vol. 1 ›› Issue (1): 108-113.

• 论文 • 上一篇    下一篇

等离子体粒子模拟中相空间周期性光滑化的滤波效应

刘成海, 许林宝   

  • 收稿日期:1984-01-09 出版日期:1984-06-24 发布日期:1984-06-24

FILTRATE WAVE EFFECT OF THE PERIODICAL SMOOTHING IN PHASE SPACE IN THE PLASMA PARTICLE SIMULATION

LIU CHENG-HAI, XU LIN-BAO   

  • Received:1984-01-09 Online:1984-06-24 Published:1984-06-24

摘要: 本文着重分析粒子模拟中相空间周期性光滑化对噪声的抑制机制。文中引入光滑化等效"滤波"效应的概念,导出了波长相关的光滑化滤波系数的解析表达式。结果表明,光滑化主要是抑制短波噪声,并且它不引起静电波能量在波数空间的转移。

Abstract: The noise-restraining mechanism due to introducing periodical smoothing in phase space in the particle simulation is analyzed. We introduce a concept of filtrate effect of the smoothing and give a analytical expression for filtrate wave coefficent that is dependent on wavelength.The results obtained show that the smoothing restrain is mainly for short wave noises and no energy transfer happens in wavenumber space.