Journal Article

PreJuSER-11901

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Mesh-Free Magnetoinductive Plasma Model

Masek, M. ; Gibbon, P.FZJ*

2010
IEEE New York, NY

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Please use a persistent id in citations: doi:10.1109/TPS.2010.2052071

Abstract: To study the transport phenomena of energetic particles in plasmas, a new type of mesh-free plasma simulation model is introduced. The model is implemented within the parallel tree code Pretty Efficient Parallel Coulomb-solver, which uses an O(N logN) Barnes-Hut tree algorithm to speed up the force calculation. In this paper, we present an extension of this approach to include magnetic fields within the so-called Darwin or magnetoinductive approximation, which neglects the transverse part of the displacement current in Ampere's law. This effectively omits radiation, which means that the timestep is no longer limited by the Courant condition, as in the fully electromagnetic case. The ability of the model to give a valid description of an N-body system with self-consistently evolving E- and B-fields is demonstrated by preliminary tests.

Keyword(s): J ; Darwin approximation (auto) ; hierarchical tree code (auto)

Note: Manuscript received December 1, 2009; revised May 6, 2010; accepted May 28, 2010. Date of publication July 26, 2010; date of current version September 10, 2010. This work was supported by the Alliance Program of Helmholtz Association (HA216/EMMI). Simulations were performed with computing resources granted by the VSR of Research Center Julich under project JZAM04.

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Contributing Institute(s):

1. Jülich Supercomputing Centre (JSC)

Research Program(s):

1. Scientific Computing (FUEK411) (FUEK411)
2. 411 - Computational Science and Mathematical Methods (POF2-411) (POF2-411)

Appears in the scientific report 2010

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