Volume 9, Issue 2
Improved Unlike-particle Collision Operator for Delta-f Drift-kinetic Particle Simulations

R. A. Kolesnikov ,  W. X. Wang and F. L. Hinton

10.4208/cicp.090410.260410a

Commun. Comput. Phys., 9 (2011), pp. 231-239.

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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 δ f 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.

  • History

Published online: 2011-09

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