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General Atomics, P.O. Box 5608, San Diego, California 92186-5608,
U.S.A.
Department of Physics and Astronomy, University of California,
Irvine, California 92679-4575. U.S.A.
University of Wisconsin-Madison, Madison, Wisconsin 53706-1687,
U.S.A.
Department of Electromagnetics, Chalmers University of Technology,
S-412 96 Göteborg, Sweden
Abstract. Experimental observations suggest that toroidal plasma rotation can
play a crucial role in determining the stability of a tokamak. Conventional
MHD stability analysis ignores rotation. Results from analytic and numerical
analysis of a number of tokamak stability issues including toroidal plasma
rotation are reported. Depending on the plasma and rotation profiles, its net
effect can be either stabilizing or destabilizing; it also has substantial
effect on the observed mode structure. The localized interchange, the double
kink mode, low n resistive MHD modes and the effect of sheared rotation
on magnetic island structure are discussed.
IAEA 2001
