Collisional damping of the geodesic acoustic mode with toroidal rotation. I. Viscous damping

Journal Article · Tue Mar 15 00:00:00 EDT 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4943283· OSTI ID:22599042

Gong, Xueyu ^[1]; Xie, Baoyi; Chen, You; Yu, Jiangmei; Yu, Jun ^[2]; Guo, Wenfeng ^[3]

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1. School of Nuclear Science and Technology, University of South China, Hengyang 421001 (China)
2. School of Mathematics and Physics, University of South China, Hengyang 421001 (China)
3. Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031 (China)

With the dispersion relation derived for the geodesic acoustic mode in toroidally rotating tokamak plasmas using the fluid model, the effect of the toroidal rotation on the collisional viscous damping of the geodesic acoustic mode is investigated. It is found that the collisional viscous damping of the geodesic acoustic mode has weak increase with respect to the toroidal Mach number.

• OSTI ID: 22599042
• Journal Information: Physics of Plasmas, Vol. 23, Issue 3; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DAMPING
DISPERSION RELATIONS
FLUIDS
GEODESICS
MACH NUMBER
PLASMA
ROTATING PLASMA
TOKAMAK DEVICES