1999•Physics of PlasmasRequires access

Effect of toroidal rotation on the localized modes in low beta circular tokamaks

Linjin Zheng, M. S. Chu, Liu Chen

Abstract

Effects of finite toroidal rotation on the stability of radially localized ideal magnetohydrodynamic (MHD) modes are investigated analytically for low-beta, large aspect-ratio circular tokamaks. Specifically, it is found that, for the Mercier interchange mode, a finite rotation shear is generally stabilizing. For the double internal kink mode, however, finite toroidal rotation shear further enhances the ballooning destabilizing effect.

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Key concepts: Physics, Toroid, Ballooning, Magnetohydrodynamic drive, Kink instability, Tokamak, Magnetohydrodynamics, BETA (programming language)