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3D Edge Transport Studies with EMC3‐EIRENE for the Dynamic Ergodic Divertor (DED) at TEXTOR
Author(s) -
Harting D.,
Reiter D.,
Feng Y.,
Schmitz O.,
Reiser D.,
Frerichs H.
Publication year - 2008
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.200810017
Subject(s) - divertor , adiabatic process , heat flux , plasma , physics , limit (mathematics) , flux (metallurgy) , electron , kinetic energy , electron temperature , enhanced data rates for gsm evolution , ion , conductivity , materials science , computational physics , mechanics , atomic physics , tokamak , thermodynamics , nuclear physics , heat transfer , computer science , classical mechanics , mathematical analysis , mathematics , quantum mechanics , metallurgy , telecommunications
In this paper we introduce some model extensions to the energy balances of the 3D fluid Monte‐Carlo code EMC3 and study their influence on the simulation results for TEXTOR‐DED. We implemented local kinetic corrections to the classical parallel heat conductivity of electrons (heat flux limit). Depending on the DED configuration, a cooling effect in the outermost SOL region, resulting from the heat flux limit, can be observed. In addition, also the adiabatic cooling term $1 \over 2$ mnV 2 $\vec V$ , which was neglected before, was implemented into the energy iterations. This term causes a localized cooling of the ions in front of the wall, where the plasma is accelerated towards the first wall. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)