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Title: Extension of the flow-rate-of-strain tensor formulation of plasma rotation theory to non-axisymmetric tokamaks

A systematic formalism for the calculation of rotation in non-axisymmetric tokamaks with 3D magnetic fields is described. The Braginskii Ωτ-ordered viscous stress tensor formalism, generalized to accommodate non-axisymmetric 3D magnetic fields in general toroidal flux surface geometry, and the resulting fluid moment equations provide a systematic formalism for the calculation of toroidal and poloidal rotation and radial ion flow in tokamaks in the presence of various non-axisymmetric “neoclassical toroidal viscosity” mechanisms. The relation among rotation velocities, radial ion particle flux, ion orbit loss, and radial electric field is discussed, and the possibility of controlling these quantities by producing externally controllable toroidal and/or poloidal currents in the edge plasma for this purpose is suggested for future investigation.
Authors:
 [1] ;  [2]
  1. Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)
  2. National Fusion Research Institute, Daejoen (Korea, Republic of)
Publication Date:
OSTI Identifier:
22410438
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 6; 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; AXIAL SYMMETRY; ELECTRIC FIELDS; FLOW RATE; GEOMETRY; IONS; MAGNETIC FIELDS; MAGNETIC SURFACES; ORBITS; PLASMA; ROTATING PLASMA; STRESSES; TENSORS; TOKAMAK DEVICES; TOROIDAL CONFIGURATION; VISCOSITY