Dynamic transport simulation code including plasma rotation and radial electric field

プラズマ回転と径電場を含めた動的輸送シミュレーションコード

本多 充; 福山 淳*

Honda, Mitsuru; Fukuyama, Atsushi*

A new one-dimensional transport code TASK/TX has been developed to describe dynamic behavior of tokamak plasmas. It solves simultaneously a set of flux-surface averaged equations: Maxwell's equations, continuity equations, equations of motion, heat transport equations, fast-particle slowing-down equations and neutral diffusion equations. The set of equations describes plasma rotations in both toroidal and poloidal directions and evaluates the radial electric field self-consistently. The finite element method with a piecewise linear interpolation function is employed together with the Streamline Upwind Petrov-Galerkin method. We have confirmed that the neoclassical properties are well described by the poloidal neoclassical viscous force. The modification of density profile during neutral beam injection is presented. In the presence of ion orbit loss, the generation of the inward radial electric field and torque due to radial current is self-consistently calculated.