Dynamic transport simulation code including plasma rotation and radial electric field
Dynamic transport simulation code including plasma rotation and radial electric field
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DOI：
10.1016/j.jcp.2007.11.017
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发表时间：
2008-02-20
影响因子：
4.1
通讯作者：
Fukuyama, A.
中科院分区：
文献类型：
--
作者：
Honda, M.;Fukuyama, A.
本文介绍了一种新的一维输运程序-它同时求解由麦克斯韦方程、连续性方程、运动方程、热输运方程、快粒子慢化方程和两组中性扩散方程组成的通量面平均方程组。这组方程描述了等离子体旋转在两个环形和极向方向通过动量转移和评估的径向电场自洽。在等离子体表面附近采用精细径向网格，采用分段线性插值函数的有限元方法。流线迎风Petrov-Galerkin方法也用于稳健计算。我们已经证实，新经典性质很好地描述了极向新经典粘性力。介绍了中性束注入过程中密度分布的修正。在离子轨道损失的存在下，产生的向内的径向电场和扭矩由于径向电流的自洽计算。(c)2007年爱思唯尔公司All rights reserved.
A new one-dimensional transport code named TASK/TX, which is able to describe dynamic behavior of tokamak plasmas, has been developed. It solves simultaneously a set of flux-surface averaged equations composed of Maxwell's equations, continuity equations, equations of motion, heat transport equations, fast-particle slowing-down equations and two-group neutral diffusion equations. The set of equations describes plasma rotations in both toroidal and poloidal directions through momentum transfer and evaluates the radial electric field self-consistently. The finite element method with a piecewise linear interpolation function is employed with a fine radial mesh near the plasma surface. The Streamline Upwind Petrov-Galerkin method is also used for robust calculation. 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. (c) 2007 Elsevier Inc. All rights reserved.