Dynamics of kink instability in a nonuniform magnetoplasma
Abstract
Accounting for an external electron current gradient, a set of nonlinear fluid equations governing the dynamics of kink instability in an inhomogeneous magnetized plasma has been derived. In the linear regime, the dispersion relation is analysed and the variation of the growth rate is graphically shown. In the nonlinear regime, it is shown that a quasistationary solution of the mode coupling equations can be represented as a dipolar vortex. Conditions under which the latter arises are given.
 Publication:

Journal of Plasma Physics
 Pub Date:
 October 1987
 DOI:
 10.1017/S0022377800012605
 Bibcode:
 1987JPlPh..38..309B
 Keywords:

 Magnetohydrodynamic Stability;
 Nonuniform Plasmas;
 Plasma Frequencies;
 Plasma Pinch;
 Coupled Modes;
 Electric Fields;
 Plasma Currents;
 Plasma Physics