[Introduction au transport turbulent dans les plasmas de fusion]
Cette introduction présente les principales instabilités à l'origine 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 d'utiliser un principe de similitude analogue à celui utilisé en mécanique des fluides. Finalement, les mécanismes physiques conduisant à la formation et l'entretien des barrières de transport sont décrits et commentés.
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.
Mot clés : Plasmas de fusion, Turbulence dans les plasmas
Xavier Garbet 1
@article{CRPHYS_2006__7_6_573_0, author = {Xavier Garbet}, title = {Introduction to turbulent transport in fusion plasmas}, journal = {Comptes Rendus. Physique}, pages = {573--583}, publisher = {Elsevier}, volume = {7}, number = {6}, year = {2006}, doi = {10.1016/j.crhy.2006.06.002}, language = {en}, }
Xavier Garbet. Introduction to turbulent transport in fusion plasmas. Comptes Rendus. Physique, Volume 7 (2006) no. 6, pp. 573-583. doi : 10.1016/j.crhy.2006.06.002. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2006.06.002/
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