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Simulation of Tokamak Divertor Plasmas including Cross‐Field Drifts
Author(s) -
Rognlien T. D.,
Milovich J. L.,
Rensink M. E.,
Kaiser T. B.
Publication year - 1992
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.2150320347
Subject(s) - divertor , tokamak , physics , plasma , computational physics , mechanics , atomic physics , nuclear physics
The effects of plasma currents and cross‐field drifts on single null tokamak divertor operation are simulated using a fully implicit 2‐D fluid code. Equations solved are those for particle continuity, parallel momentum, electron energy, ion energy, electrostatic potential, and neutral gas diffusion. The core and scrape‐off layer regions are separated by a magnetic separatrix, both of which are included in the simulation. The core plasma is poloidally periodic, and the inner and outer private flux regions are properly connected. The code utilizes a fully implicit method‐of‐lines scheme to advance the variables in time with a Krylov technique or a direct Newton iteration with a numerical Jacobian. Results are presented on the effects of currents and cross‐field drifts for DIII‐D single‐null parameters.

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