Premium
Simulation of Double‐Null Divertor Plasmas with the UEDGE Code
Author(s) -
Rensink M.E.,
Allen S.L.,
Porter G.D.,
Rognlien T.D.
Publication year - 2000
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 - 10.1002/1521-3986(200006)40:3/4<302::aid-ctpp302>3.0.co;2-l
Subject(s) - divertor , plasma , physics , electric field
We describe recent modifications to the UEDGE code for simulation of full double‐null magnetic configurations. We present simulation results for magnetically balanced double nulls, with and without asymmetries due to divertor recycling and cross‐field drifts. Up/down electron temperature asymmetries due to recycling are weak for attached plasmas. Cross‐field drifts due to radial electric fields produce strong ion particle fluxes through the private flux regions that drive up/down plasma asymmetries. Electrical currents through grounded divertor plates are sensitive to both recycling‐driven and drift‐driven asymmetries.