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Non-linear simulations of the TCV Scrape-Off Layer

descriptionPublicationkeyboard_double_arrow_right Article , Journal , Conference object 01 Aug 2017 Switzerland Publisher:Elsevier BVJournal:Nuclear Materials and Energy, volume 12, pages 1,205-1,208 (issn: 2352-1791,

Authors: Benoit Labit; F. Nespoli; Ivo Furno; Fabio Riva; Paolo Ricci; Federico David Halpern; Joaquim Loizu; +1 Authors

doi: 10.1016/j.nme.2016.10.019

Non-linear simulations of the TCV Scrape-Off Layer

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Abstract

AbstractTo 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.

Country

Switzerland

Related Organizations

Max Planck Society
Germany
École Polytechnique Fédérale de Lausanne EPFL
Switzerland
Swiss plasma Center
Switzerland
Swiss plasma Center
Switzerland
Max Planck Institute of Neurobiology
Germany

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Keywords

Plasma, GBS simulations heat flux, TK9001-9401, Nuclear engineering. Atomic power, Scrape-Off Layer, CRPP_EDGE, TCV

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