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Numerical Modeling of the Thermal Force for the Kinetic Test‐Ion Transport Simulation Based on the Fokker‐Planck Collision Operator
Author(s) -
Homma Y.,
Hatayama A.
Publication year - 2014
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201410049
Subject(s) - fokker–planck equation , collision , test particle , physics , kinetic energy , mechanics , thermal , magnetic field , computer simulation , coulomb collision , field (mathematics) , force field (fiction) , temperature gradient , collision frequency , classical mechanics , statistical physics , plasma , inelastic collision , computer science , thermodynamics , electron , nuclear physics , quantum mechanics , differential equation , mathematics , computer security , pure mathematics
Abstract We present an extended numerical model of the thermal force based on the Fokker‐Planck collision method. Our model is designed for the use of the test particle transport simulation in a fluid‐like magnetized background plasma. By a series of systematic test simulations performed in this study, we have confirmed that our model is able to correctly simulate the thermal force which is caused not only by parallel, but also by perpendicular temperature gradient with respect to the direction of magnetic field. Effective length of collision time step for numerical calculations has also been investigated. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)