Premium
Continuum kinetic modelling of cross‐separatrix plasma transport in a tokamak edge including self‐consistent electric fields
Author(s) -
Dorf Mikhail,
Dorr Milo
Publication year - 2018
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.201700137
Subject(s) - tokamak , physics , plasma , kinetic energy , gyrokinetics , nuclear fusion , atomic physics , mechanics , computational physics , classical mechanics , nuclear physics
Eulerian kinetic calculations are presented for the axisymmetric cross‐separatrix plasma transport at the edge of a tokamak. The simulations are performed with a high‐order finite volume code COGENT, which solves the long‐wavelength limit of the full‐f ion gyrokinetic equation including the non‐linear Fokker–Plank collision model. Self‐consistent 2D electrostatic potential variations are obtained from the quasi‐neutrality ( ∇ · j = 0) equation coupled to an isothermal fluid electron response. Illustrative solutions presented for parameters characteristic of the DIII‐D tokamak show qualitative agreement with experimental data.