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Title: Numerical study of compressibility effects on the reversed shear Alfvén eigenmode in tokamak plasma

Compressibility effects on the reversed shear Alfvén eigenmode in tokamak plasma are studied numerically. It is shown that compressibility is favorable for the existence of the reversed shear Alfvén eigenmode even without the pressure gradient, and the frequency of the reversed shear Alfvén eigenmode is modified by the geodesic frequency, which is consistent with an analytical theory.
Authors:
;  [1] ;  [2]
  1. Department of Physics, East China University of Science and Technology, Shanghai 200237 (China)
  2. Department of Physics, Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027 (China)
Publication Date:
OSTI Identifier:
22227911
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 8; Other Information: (c) 2013 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; ALFVEN WAVES; COMPRESSIBILITY; COMPRESSIBLE FLOW; GEODESICS; MAGNETOHYDRODYNAMICS; NUMERICAL ANALYSIS; PLASMA; PLASMA PRESSURE; PLASMA SIMULATION; PRESSURE GRADIENTS; REVERSED SHEAR; TOKAMAK DEVICES