Nonlinear tokamak stability

descriptionPublicationkeyboard_double_arrow_right Article 01 Sep 1976 English Publisher:AIP PublishingJournal:The Physics of Fluids, volume 19, pages 1,411-1,416 (issn: 0031-9171,

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Authors: H. R. Strauss;

doi: 10.1063/1.861658

Nonlinear tokamak stability

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Abstract

The nonlinear energy theorem of Rosenbluth for helically symmetric tokamak magnetohydrodynamic motions is used to find nonlinear corrections to the linear stability of kink modes. Near marginal stability these corrections are important and give a finite amplitude threshold for instability. Cases are also found in which a mode saturates at low amplitude, in agreement with previous calculations.

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The University of Texas at Austin
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