Studies of the effect of the inductive poloidal pulse on single saturated kink instabilities show that the initial linear stability is enhanced by the addition of current driven parallel to the magnetic field in the plasma edge. The pulse application removes the source of free energy to sustain saturated instabilities. In simplified saturated systems where the coupling between fluctuations is limited, the pulse driven current in the edge is linearly stabilizing to key modes that transfer power between the equilibrium and nonlinearly driven fluctuations.The A =alt; J agt; ac alt; B agt; /alt; B agt;2 profile is flattened in the core during the crash event.5 This is an effect by the dynamo generated EMF which suppresses current in the interior and enhances current near the reversal surface and edge. After theanbsp;...
|Title||:||Numerical Simulations of Dynamo Suppression During Poloidal Current Drive in the Reversed Field Pinch|
|Author||:||James Michael Reynolds|
|Publisher||:||ProQuest - 2007|