Open AccessCOMPARISON BETWEEN 2D TURBULENCE MODEL ESEL AND EXPERIMENTAL DATA FROM AUG AND COMPASS TOKAMAKS
Author(s) -
Peter Ondáč,
J. Horáček,
J. Seidl,
P. Vondráček,
Hans Müller,
Jiřı́ Adámek,
A. H. Nielsen
Publication year - 2015
Publication title -
acta polytechnica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.207
H-Index - 15
eISSN - 1805-2363
pISSN - 1210-2709
DOI - 10.14311/ap.2015.55.0128
Subject(s) - tokamak , turbulence , plasma , physics , compass , asdex upgrade , computational physics , coupling (piping) , reciprocating motion , mechanics , atomic physics , nuclear physics , materials science , thermodynamics , metallurgy , quantum mechanics , gas compressor
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.