[Table of Contents]

Plasma and Fusion Research

Volume 4, 024 (2009)

Regular Articles

Open Boundary Condition for Particle Simulation in Magnetic Reconnection Research
Hiroaki OHTANI1,2) and Ritoku HORIUCHI1,2)
1)
Department of Simulation Science, National Institute for Fusion Science, Toki 509-5292, Japan
2)
Graduate University of Advanced Studies (SOKENDAI), Toki 509-5292, Japan
(Received 22 December 2008 / Accepted 1 April 2009 / Published 4 June 2009)

Abstract

We develop a three-dimensional electromagnetic PArticle Simulation code for investigating driven Magnetic reconnection in an Open system from the kinetic view-point (PASMO). In this paper, we advance a new model for the upstream and downstream boundaries. We succeed in achieving the frozen-in condition for both electrons and ions with high accuracy at the upstream boundary, while we can decrease unphysical noise at the downstream boundary. We compare the simulation results of long and short-simulation boxes to check whether the downstream boundary model fulfills its function. The results of the short-simulation box effectively mimic those of the long-simulation box. Using the new boundary model, we succeed in increasing the accuracy of simulation.

Keywords

electromagnetic PIC simulation code, open boundary condition, magnetic reconnection

DOI: 10.1585/pfr.4.024

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This paper may be cited as follows:

Hiroaki OHTANI and Ritoku HORIUCHI, Plasma Fusion Res. 4, 024 (2009).