MICROSCOPIC ORIGINS AND MACROSCOPIC USES OF PLASMA ROTATION

We consider the microscopic sources of toroidal and poloidal flow in c onfined magnetoplasmas and the effects of such flows on macroscopic st ability, The central difficulty is satisfactory modelling of kinetic t heory effects so as to permit their robust introduction into magnetohy drodynamic (MHD) codes. It is tentatively concluded that poloidal rota tion, but not toroidal, is responsible for the computed stabilization and return to axisymmetry.