Gyrokinetic Fokker-Planck Collision Operator

Gyrokinetic Fokker-Planck collision operator.

The gyrokinetic linearized exact Fokker-Planck collision operator is obtained in a form suitable for plasma gyrokinetic equations, for arbitrary mass ratio. The linearized Fokker-Planck operator includes both the test-particle and field-particle contributions, and automatically conserves particles, momentum, and energy, while ensuring non-negative entropy production. Finite gyroradius effects i...

Gyrokinetic Fokker-Planck Collision Operator

A fully non-linear multi-species Fokker-Planck-Landau collision operator for simulation of fusion plasma

Fusion edge plasmas can be far from thermal equilibrium and require the use of a non-linear collision operator for accurate numerical simulations. In this article, the non-linear single-species Fokker-Planck-Landau collision operator developed by Yoon and Chang [Phys. Plasmas 21, 032503 (2014)] is generalized to include multiple particle species. The finite volume discretization used in this wo...

Linearized model Fokker–Planck collision operators for gyrokinetic simulations. I. Theory

for gyrokinetic simulations. I. Theory I. G. Abel, M. Barnes, S. C. Cowley, W. Dorland, and A. A. Schekochihin Plasma Physics Group, Blackett Laboratory, Imperial College, London SW7 2AZ, United Kingdom Euratom/UKAEA Fusion Association, Culham Science Centre, Abingdon OX14 3DB, United Kingdom Department of Physics, Institute for Research in Electronics and Applied Physics, and Center for Scient...

Linearized quantum and relativistic Fokker-Planck-Landau equations

After a recent work on spectral properties and dispersion relations of the linearized classical Fokker-Planck-Landau operator 8], we establish in this paper analogous results for two more realistic collision operators: The rst one is the Fokker-Planck-Landau collision operator obtained by relativistic calculations of binary interactions , and the second is a collision operator (of Fokker-Planck...