Effect of toroidal rotation on the geodesic acoustic mode in magnetohydrodynamics

Effect of toroidal rotation on the geodesic acoustic mode in magnetohydrodynamics

Theoretical research on the geodesic acoustic mode (GAM) induced by equilibrium toroidal rotation flow in the tokamak plasmas is approached by using ideal magnetohydrodynamic model. The dispersion relation of the GAM is presented by taking into account magnetic field perturbations. It is shown that...

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Veröffentlicht in:Physics of plasmas 2012-09, Vol.19 (9)
1. Verfasser: Ren, Haijun
Format: Artikel
Sprache:eng
Schlagworte:
Acoustics
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Computational fluid dynamics
DISPERSION RELATIONS
Dispersions
DISTURBANCES
Fluid flow
GEODESICS
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
Perturbation methods
PLASMA
Plasmas
ROTATION
SOUND WAVES
TOKAMAK DEVICES
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Beschreibung
Zusammenfassung:Theoretical research on the geodesic acoustic mode (GAM) induced by equilibrium toroidal rotation flow in the tokamak plasmas is approached by using ideal magnetohydrodynamic model. The dispersion relation of the GAM is presented by taking into account magnetic field perturbations. It is shown that β can decrease the frequency of the GAM.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4753938