Magnetohydrodynamic with Adaptively Embedded Particle-in-Cell model: MHD-AEPIC

نویسندگان

چکیده

Space plasma simulations have seen an increase in the use of magnetohydrodynamic (MHD) with embedded Particle-in-Cell (PIC) models. This combined MHD-EPIC algorithm simulates some regions interest using kinetic PIC method while employing MHD description rest domain. The models are highly efficient and their fluid descriptions valid for most part computational domain, thus making large-scale global feasible. However, practical applications, where effects critical can be changing, appearing, disappearing moving If a static region is used, this requires much larger domain than actually needed, which cost dramatically. To address problem, we developed new that able to dynamically change model applied. We implemented Adaptively Embedded (MHD-AEPIC) BATS-R-US Hall Adaptive Mesh Particle Simulator (AMPS) as semi-implicit describe present test case two merging flux ropes demonstrate its accuracy. implementation uses dynamic allocation/deallocation memory load balancing parallel execution. evaluate performance MHD-AEPIC compared scaling properties large number cores.

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ژورنال

عنوان ژورنال: Journal of Computational Physics

سال: 2021

ISSN: ['1090-2716', '0021-9991']

DOI: https://doi.org/10.1016/j.jcp.2021.110656