Threedimensional transport model for toroidal plasmas
Abstract
A nonlinear MHD model, developed for three dimensional toroidal geometries (asymmetric) and for high (ALPHA)((ALPHA) approximately epsilon), is used as a basis for a three dimensional transport model. Since inertia terms are needed in describing evolving magnetic islands, the model can calculate transport, both in the transient phase before nonlinear saturation of magnetic islands and afterwards on the resistive time scale. In the (ALPHA) approximately epsilon ordering, the plasma does not have sufficient energy to compress the parallel magnetic field, which allows the Alfven wave to be eliminated in the reduced nonlinear equations, and the model then follows the slower time scales. The resulting perpendicular and parallel plasma drift velocities can be idenfified with those of guiding center theory.
 Publication:

Unknown
 Pub Date:
 December 1980
 Bibcode:
 1980tdtm.rept.....C
 Keywords:

 Plasma Control;
 Plasma Drift;
 Plasma Physics;
 Three Dimensional Models;
 Toroidal Plasmas;
 Magnetic Fields;
 Mathematical Models;
 Nonlinear Equations;
 Simulation;
 Tokamak Devices;
 Plasma Physics