COMPARISON BETWEEN 2D TURBULENCE MODEL ESEL AND EXPERIMENTAL DATA FROM AUG AND COMPASS TOKAMAKS

Authors

  • Peter Ondac
  • Jan Horacek
  • Jakub Seidl
  • Petr Vondrácek
  • Hans Werner Müller Max-Planck-Institut für Plasmaphysik , Boltzmannstraße 2, D-85748 Garching, Germany
  • Jirí Adámek Institute of Plasma Physics, Academy of Sciences, Za Slovankou 1782/3, 182 00 Prague 8, Czech Republic
  • Anders Henry Nielsen Association Euratom-Ris National Laboratory, Technical University of Denmark, OPL-128 Ris?, Roskilde, DK-4000, Denmark

DOI:

https://doi.org/10.14311/AP.2015.55.0128

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.

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Published

2015-04-30

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Articles