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Title: MHD-model for low-frequency waves in a tokamak with toroidal plasma rotation and problem of existence of global geodesic acoustic modes

A set of reduced linear equations for the description of low-frequency perturbations in toroidally rotating plasma in axisymmetric tokamak is derived in the framework of ideal magnetohydrodynamics. The model suitable for the study of global geodesic acoustic modes (GGAMs) is designed. An example of the use of the developed model for derivation of the integral conditions for GGAM existence and of the corresponding dispersion relation is presented. The paper is dedicated to the memory of academician V.D. Shafranov.
Authors:
; ;  [1] ;  [2]
  1. National Research Centre Kurchatov Institute (Russian Federation)
  2. Peoples’ Friendship University of Russia (Russian Federation)
Publication Date:
OSTI Identifier:
22472018
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 41; Journal Issue: 12; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AXIAL SYMMETRY; DISPERSION RELATIONS; DISTURBANCES; EQUATIONS; INTEGRALS; MAGNETOHYDRODYNAMICS; ROTATING PLASMA; ROTATION; TOKAMAK DEVICES