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Comptes Rendus Physique
Volume 7, n° 6
pages 573-583 (juillet-août 2006)
Doi : 10.1016/j.crhy.2006.06.002
Introduction to turbulent transport in fusion plasmas
Introduction au transport turbulent dans les plasmas de fusion
 

Xavier Garbet
Association Euratom-CEA, CEA/DSM/DRFC CEA-Cadarache, 13108 Saint Paul Lez Durance, France 

Abstract

This introduction presents the main instabilities responsible for turbulence in tokamak plasmas, and the prominent features of the resulting transport. The usual techniques to construct reduced transport models are described. These models can be tested by analysing steady state and transient regimes. Another way to test the theory is to use a similarity principle, similar to the one used in fluid mechanics. Finally, the physics involved in the formation and sustainment of transport barriers is presented. To cite this article: X. Garbet, C. R. Physique 7 (2006).

The full text of this article is available in PDF format.
Résumé

Cette introduction présente les principales instabilités à lʼorigine de la turbulence dans les plasmas de tokamak, ainsi que les principales caractéristiques du transport turbulent qui en résulte. Les techniques usuelles permettant de construire un modèle de transport y sont décrites. Ces modèles peuvent être testés en analysant des régimes stationnaires et transitoires. Une autre façon de tester la théorie est dʼutiliser un principe de similitude analogue à celui utilisé en mécanique des fluides. Finalement, les mécanismes physiques conduisant à la formation et lʼentretien des barrières de transport sont décrits et commentés. Pour citer cet article : X. Garbet, C. R. Physique 7 (2006).

The full text of this article is available in PDF format.

Keywords : Fusion plasmas, Plasma turbulence

Mots-clés : Plasmas de fusion, Turbulence dans les plasmas




© 2006  Published by Elsevier Masson SAS de la part de Académie des sciences.
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