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Viscous damping of toroidal angular momentum in tokamaks
被引:10
|作者:
Stacey, W. M.
[1
]
机构:
[1] Georgia Tech Fus Res Ctr, Atlanta, GA 30332 USA
关键词:
ROTATION;
TRANSPORT;
CONFINEMENT;
TURBULENCE;
PLASMA;
SHEAR;
D O I:
10.1063/1.4896719
中图分类号:
O35 [流体力学];
O53 [等离子体物理学];
学科分类号:
070204 ;
080103 ;
080704 ;
摘要:
The Braginskii viscous stress tensor formalism was generalized to accommodate non-axisymmetric 3D magnetic fields in general toroidal flux surface geometry in order to provide a representation for the viscous damping of toroidal rotation in tokamaks arising from various "neoclassical toroidal viscosity" mechanisms. In the process, it was verified that the parallel viscosity contribution to damping toroidal angular momentum still vanishes even in the presence of toroidal asymmetries, unless there are 3D radial magnetic fields. (C) 2014 AIP Publishing LLC.
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页数:3
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