Momentum conservation in Multi-Level Multi-Domain (MLMD) simulations

JOURNAL OF COMPUTATIONAL PHYSICS

卷:312

Article

Innocenti, M. E.¹  Beck, A.²  Markidis, S.³  Lapenta, G.¹ 

[1] Katholieke Univ Leuven, Dept Math, Ctr Plasma Astrophys, Celestijnenlaan 200B, B-3001 Louvain, Belgium

[2] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France

[3] KTH Royal Inst Technol, PDC Ctr High Performance Comp, Stockholm, Sweden

关键词: Particle-In-Cell;    Adaptive;    Implicit;    MLMD;    Self-forces;    Momentum conservation;   

DOI  :  10.1016/j.jcp.2016.02.026

来源: Elsevier

【 摘 要 】

Momentum conservation and self-forces reduction are challenges for all Particle-In-Cell (PIC) codes using spatial discretization schemes which do not fulfill the requirement of translational invariance of the grid Green's function. We comment here on the topic applied to the recently developed Multi-Level Multi-Domain (MLMD) method. The MLMD is a semi-implicit method for PIC plasma simulations. The multi-scale nature of plasma processes is addressed by using grids with different spatial resolutions in different parts of the domain. (C) 2016 Elsevier Inc. All rights reserved.

【 授权许可】

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