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Title: Turbulent transport across shear layers in magnetically confined plasmas

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4897312· OSTI ID:22299663
;  [1]; ;  [2]; ; ;  [3];  [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. Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, D-85748 Garching (Germany)
  4. IJL, Université de Lorraine, CNRS (UMR 7198), BP 40239 Vandoeuvre-lès-Nancy (France)

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.

OSTI ID:
22299663
Journal Information:
Physics of Plasmas, Vol. 21, Issue 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
Country of Publication:
United States
Language:
English