Community Research and Development Information Service - CORDIS

Abstract

Self-generated rotation in turbulent plasmas plays an important role in determining the overall level of anomalous transport. In Particular zonal flows (ZF), self-generated large-scale poloidal ExB flows, are known to efficiently regulate the turbulence level. Evidence of anomalous toroidal momentum has also been reported in the plasma core of several tokamaks, without any external momentum sources. Theoretical work emphasizes the role of velocity nonlinearies or Reynold stresses, as the source of these flows. Quantitative analysis relies mainly on numerical simulations of specific plasma turbulence models.
In this contribution we report on the observation and characterization of poloidal and toroidal rotation obtained by means of numerical simulations of a 3D fluid model describing flux-driven ITG turbulence.

Additional information

Authors: OTTAVIANI M, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);FALCHETTO G, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);GARBET X, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: An oral paper given at: US-EU Transport Task Force Meeting
Availability: Available from Association EURATOM-CEA, Departement de Recherches sur la Fusion Controlee, CEA Cadarache, F-13108 St Paul-Lez-Durance, France Tel: (+33) 4 42 25 70 01; Fax: (+33) 4 42 25 64 21 E-mail: dirdrfc@drfc.cad.cea.fr
Record Number: 200518113 / Last updated on: 2005-05-20
Category: PUBLICATION
Original language: en
Available languages: en