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

Journal Article · Tue Dec 15 00:00:00 EST 2015 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X15120077· OSTI ID:22472018

Lakhin, V. P.; Ilgisonis, V. I. ^[1]; Konovaltseva, L. V. ^[2]

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1. National Research Centre Kurchatov Institute (Russian Federation)
2. Peoples’ Friendship University of Russia (Russian Federation)

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.

• OSTI ID: 22472018
• Journal Information: Plasma Physics Reports, Vol. 41, Issue 12; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AXIAL SYMMETRY
DISPERSION RELATIONS
DISTURBANCES
EQUATIONS
INTEGRALS
MAGNETOHYDRODYNAMICS
ROTATING PLASMA
ROTATION
TOKAMAK DEVICES