Comparison between 2D turbulence model ESEL and experimental data from AUG and COMPASS tokamaks

Peter Ondac, Jan Horacek, Jakub Seidl, Petr Vondracek, Hans Werner Müller, Jiri Adamek, Anders Henry Nielsen

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Abstract

In this article we have used the 2D fluid turbulence numerical model, ESEL, to simulate turbulent transport in edge tokamak plasma. Basic plasma parameters from the ASDEX Upgrade and COMPASS tokamaks are used as input for the model, and the output is compared with experimental observations obtained by reciprocating probe measurements from the two machines. Agreements were found in radial profiles of mean plasma potential and temperature, and in a level of density fluctuations. Disagreements, however, were found in the level of plasma potential and temperature fluctuations. This implicates a need for an extension of the ESEL model from 2D to 3D to fully resolve the parallel dynamics, and the coupling from the plasma to the sheath.
Original languageEnglish
JournalActa Polytechnica
Volume55
Issue number2
Pages (from-to)128-135
ISSN1210-2709
DOIs
Publication statusPublished - 2015

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