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

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

Year:    2011

Communications in Computational Physics, Vol. 9 (2011), Iss. 2 : pp. 231–239

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.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/cicp.090410.260410a

Communications in Computational Physics, Vol. 9 (2011), Iss. 2 : pp. 231–239

Published online:    2011-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    9

Keywords: