Energy-preserving coupling of explicit particle-in-cell with Monte Carlo collisions

被引：0

作者：

Vay, Jean-Luc ^{[1
]}

Angus, Justin Ray ^{[2
]}

Shapoval, Olga ^{[1
]}

Lehe, Remi ^{[1
]}

Grote, David ^{[2
]}

Huebl, Axel ^{[1
]}

机构：

[1] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

来源：

PHYSICAL REVIEW E | 2025年 / 111卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.111.025306

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The particle-in-cell (PIC) and Monte Carlo collisions (MCC) methods are workhorses of many numerical simulations of physical systems. Recently, it was pointed out that, while the two methods can be exactly-or nearly-energy-conserving independently, combining the two leads to anomalous numerical heating. This paper reviews the standard explicit PIC-MCC algorithm, elucidates the origins of the anomalous numerical heating, and explains how to couple the two methods such that the anomalous numerical heating is avoided.

引用

页数：13

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