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Improved Unlike-Particle Collision Operator for delta-f Drift-Kinetic Particle Simulations

Published online by Cambridge University Press:  20 August 2015

R. A. Kolesnikov,
W. X. Wang and
F. L. Hinton
R. A. Kolesnikov*
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87544, USA
W. X. Wang*
Affiliation:
Plasma Physics Laboratory, P.O. Box 451, Princeton, NJ 08543, USA
F. L. Hinton*
Affiliation:
Center for Astrophysics & Space Science, University of California, San Diego, La Jolla, CA 92093, USA
*
Corresponding author.Email:rkolesni@lanl.gov
Email:wwang@pppl.gov
Email:fhinton@ucsd.edu
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Abstract

Plasmas in modern tokamak experiments contain a significant fraction of impurity ion species in addition to main deuterium background. A new unlike-particle collision operator for δf particle simulation has been developed to study the nonlocal effects of impurities due to finite ion orbits on neoclassical transport in toroidal plasmas. A new algorithm for simulation of cross-collisions between different ion species includes test-particle and conserving field-particle operators. An improved field-particle operator is designed to exactly enforce conservation of number, momentum and energy.

Keywords

52.30.Gz52.25.Xz52.25.DgDrift-kineticsmagnetized plasmas

Information

Type
Research Article
Information
Communications in Computational Physics , Volume 9 , Issue 2 , February 2011, pp. 231 - 239
Copyright
Copyright © Global Science Press Limited 2011

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