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Title: Turbulent transport across shear layers in magnetically confined plasmas

Shear layers modify the turbulence in diverse ways and do not only suppress it. A spatial-temporal investigation of gyrofluid simulations in comparison with experiments allows to identify further details of the transport process across shear layers. Blobs in and outside a shear layer merge, thereby exchange particles and heat and subsequently break up. Via this mechanism particles and heat are transported radially across shear layers. Turbulence spreading is the immanent mechanism behind this process.
Authors:
;  [1] ; ;  [2] ;  [3] ; ; ;  [4] ;  [5] ;  [4] ;  [3]
  1. Institut für Grenzflächenverfahrenstechnik und Plasmatechnologie, Universität Stuttgart, D-70569 Stuttgart (Germany)
  2. Physik-Department E28, Technische Universität München, James-Franck-Str.1, D-85748 Garching (Germany)
  3. (Germany)
  4. Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, D-85748 Garching (Germany)
  5. IJL, Université de Lorraine, CNRS (UMR 7198), BP 40239 Vandoeuvre-lès-Nancy (France)
Publication Date:
OSTI Identifier:
22299663
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; LAYERS; PLASMA; SHEAR; SIMULATION; TURBULENCE