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Title: Applications of large eddy simulation methods to gyrokinetic turbulence

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4868235· OSTI ID:22251939
 [1];  [2];  [1];  [3]
  1. Max-Planck-Institut für Plasmaphysik, EURATOM Association, D-85748 Garching (Germany)
  2. Applied Mathematics Research Centre, Coventry University, Coventry CV1 5FB (United Kingdom)
  3. Max-Planck/Princeton Center for Plasma Physics, Princeton Plasma Physics Laboratory, Princeton University, P.O. Box 451, Princeton, New Jersey 08543 (United States)

The large eddy simulation (LES) approach—solving numerically the large scales of a turbulent system and accounting for the small-scale influence through a model—is applied to nonlinear gyrokinetic systems that are driven by a number of different microinstabilities. Comparisons between modeled, lower resolution, and higher resolution simulations are performed for an experimental measurable quantity, the electron density fluctuation spectrum. Moreover, the validation and applicability of LES is demonstrated through a series of diagnostics based on the free energetics of the system.

OSTI ID:
22251939
Journal Information:
Physics of Plasmas, Vol. 21, Issue 3; 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