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Title: Magnetohydrodynamically generated velocities in confined plasma

We investigate by numerical simulation the rotational flows in a toroid confining a conducting magnetofluid in which a current is driven by the application of externally supported electric and magnetic fields. The computation involves no microscopic instabilities and is purely magnetohydrodynamic (MHD). We show how the properties and intensity of the rotations are regulated by dimensionless numbers (Lundquist and viscous Lundquist) that contain the resistivity and viscosity of the magnetofluid. At the magnetohydrodynamic level (uniform mass density and incompressible magnetofluids), rotational flows appear in toroidal, driven MHD. The evolution of these flows with the transport coefficients, geometry, and safety factor are described.
Authors:
;  [1] ;  [2] ;  [3]
  1. LMFA, CNRS, École Centrale de Lyon, Écully (France)
  2. M2P2, CMI, CNRS, Aix-Marseille Université, Marseille (France)
  3. Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755 (United States)
Publication Date:
OSTI Identifier:
22408323
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 4; Other Information: (c) 2015 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; CALCULATION METHODS; COMPUTERIZED SIMULATION; ELECTRIC FIELDS; FLOW MODELS; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; PLASMA CONFINEMENT; ROTATING PLASMA; TOROIDAL CONFIGURATION; VELOCITY; VISCOSITY