Non-linear simulations of the TCV Scrape-Off Layer

Nespoli, F.; Furno, I.; Halpern, F.D.; Labit, B.; Loizu, J.; Ricci, P.; Riva, Fabio Matteo

doi:10.1016/j.nme.2016.10.019

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Journal article

Non-linear simulations of the TCV Scrape-Off Layer

Nespoli, F. Swiss Plasma Center (SPC), École Polytechnique Fédérale de Lausanne (EPFL), Switzerland
Furno, I. Swiss Plasma Center (SPC), École Polytechnique Fédérale de Lausanne (EPFL), Switzerland
Halpern, F.D. Swiss Plasma Center (SPC), École Polytechnique Fédérale de Lausanne (EPFL), Switzerland
Labit, B. Swiss Plasma Center (SPC), École Polytechnique Fédérale de Lausanne (EPFL), Switzerland
Loizu, J. Max Planck-Institut fur Plasmaphysik, Greifswald, Germany - Princeton Plasma Physics Laboratory, Princeton, USA
Ricci, P. Swiss Plasma Center (SPC), École Polytechnique Fédérale de Lausanne (EPFL), Switzerland
Riva, Fabio Matteo ORCID Istituto ricerche solari Aldo e Cele Daccò (IRSOL), Faculty of Informatics, Università della Svizzera italiana Switzerland - Swiss Plasma Center (SPC), École Polytechnique Fédérale de Lausanne (EPFL), Switzerland

2017

Published in:

Nuclear Materials and Energy. - 2017, vol. 12, p. 1205-1208

English To investigate the mechanisms leading to the heat deposition onto the first wall in the Scrape-Off Layer (SOL), we perform dedicated numerical non-linear simulations of the SOL plasma dynamics of a TCV discharge using the GBS code. The simulated parallel heat flux profiles on the limiter agree qualitatively with the experimental ones obtained by means of infrared thermography, showing a double scale length. Non-ambipolar currents are found to flow to the limiter, consistently with the experiments. The contribution of the latter to the total heat flux is discussed. The results of a second simulation identical to the first one but with 40 times higher resistivity are also discussed.

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