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

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...

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Bibliographic Details
Published in:Journal of computational physics 2016-05, Vol.312, p.14-18
Main Authors: Innocenti, M.E., Beck, A., Markidis, S., Lapenta, G.
Format: Article
Language:English
Subjects:
Adaptive
Computation
Computer simulation
Conservation
Discretization
Implicit
Invariance
MLMD
Momentum conservation
Nuclear Experiment
Particle in cell technique
Particle-In-Cell
Physics
Reduction
Self-forces
Spatial resolution
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Summary: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.
ISSN:0021-9991
1090-2716
1090-2716
DOI:10.1016/j.jcp.2016.02.026