Zonal flow modes in a tokamak plasma with dominantly poloidal mean flows

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3491114· OSTI ID:21421261

Deng, Zhou ^[1]

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1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China) and Centre for Magnetic Fusion Theory, Chinese Academy of Sciences, Hefei 230031 (China)

The zonal flow eigenmodes in a tokamak plasma with dominantly poloidal mean flows are theoretically investigated. It is found that the frequencies of both the geodesic acoustic mode and the sound wave increase with respect to the poloidal Mach number. In contrast to the pure standing wave form in static plasmas, the density perturbations consist of a standing wave superimposed with a small amplitude traveling wave in the poloidally rotating plasma.

• OSTI ID: 21421261
• Journal Information: Physics of Plasmas, Vol. 17, Issue 10; Other Information: DOI: 10.1063/1.3491114; (c) 2010 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
MACH NUMBER
MAGNETOHYDRODYNAMICS
PLASMA DENSITY
PLASMA INSTABILITY
PLASMA SIMULATION
PLASMA WAVES
ROTATING PLASMA
SOUND WAVES
STANDING WAVES
TOKAMAK DEVICES
TRAVELLING WAVES
CLOSED PLASMA DEVICES
DIMENSIONLESS NUMBERS
FLUID MECHANICS
HYDRODYNAMICS
INSTABILITY
MECHANICS
PLASMA
SIMULATION
THERMONUCLEAR DEVICES
VELOCITY