Continuum kinetic modeling of the tokamak plasma edge | Zendy

Mikhail Dorf | Zendy; M. Dörr | Zendy; J. Hittinger | Zendy; R. H. Cohen | Zendy; T.D. Rognlien | Zendy

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Continuum kinetic modeling of the tokamak plasma edge

Author(s) -

Mikhail Dorf,

M. Dörr,

J. Hittinger,

R. H. Cohen,

T.D. Rognlien

Publication year - 2016

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.4943106

Subject(s) - physics , tokamak , divertor , plasma , toroid , rotational symmetry , nonlinear system , computational physics , toroidal and poloidal , edge localized mode , anisotropy , discretization , atomic physics , mechanics , nuclear physics , quantum mechanics , mathematical analysis , mathematics

The first 4D (axisymmetric) high-order continuum gyrokinetic transport simulations that span the magnetic separatrix of a tokamak are presented. The modeling is performed with the COGENT code, which is distinguished by fourth-order finite-volume discretization combined with mapped multiblock grid technology to handle the strong anisotropy of plasma transport and the complex X-point divertor geometry with high accuracy. The calculations take into account the effects of fully nonlinear Fokker-Plank collisions, electrostatic potential variations, and anomalous radial transport. Topics discussed include: (a) ion orbit loss and the associated toroidal rotation and (b) edge plasma relaxation in the presence of anomalous radial transport.

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