Numerical investigation of Scrape Off Layer anomalous particle transport for MAST parameters

F. Militello, W. Fundamenski, Volker Naulin, Anders Henry Nielsen

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

Numerical simulations of L-mode plasma turbulence in the Scrape Off Layer of MAST are presented. Relevant features of the boundary plasma, such as the thickness of the density layer or the statistics of the fluctuations are related to the edge density and temperature, plasma current and parallel connection length. It is found that the density profile is weakly affected by the edge density, it broadens when the current or the temperature are decreased while the connection length has the opposite effect. The statistics of the turbulence is relatively insensitive to variations of all the edge parameters and show a certain degree of universality. Effective transport coefficients are calculated for several plasma conditions and display a strong nonlinear dependence on the parameters and on the radial variable. Finally, it is shown how the perpendicular particle fluxes in the Scrape Off Layer are related to the edge parameters.
Original languageEnglish
JournalJournal of Nuclear Materials
Volume438
Issue numberSupplement
Pages (from-to)S530-S535
ISSN0022-3115
DOIs
Publication statusPublished - 2013
Event20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices - Eurogress, Aachen, Germany
Duration: 21 May 201225 May 2012
Conference number: 20
https://www.congressa.de/PSI2012/index.php?article_id=10

Conference

Conference20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices
Number20
LocationEurogress
CountryGermany
CityAachen
Period21/05/201225/05/2012
Internet address

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