Monte Carlo Simulations Study of Neoclassical Transport in Inward Shifted LHD Configurations
Monte Carlo Simulations Study of Neoclassical Transport in Inward Shifted LHD Configurations
复制标题
内移 LHD 配置中新古典输运的蒙特卡罗模拟研究
DOI：
--
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
C. Beidler
中科院分区：
文献类型：
--
作者：
A. Wakasa;S. Murakami;H. Maassberg;C. Beidler
新经典输运系数是在磁轴沿主半径方向有两个不同移动值的LHD组态下计算的：“标准”组态(Ru*=3‘75m)和..inwardshifted’‘contrguration(R*=3.6m).WeapplyanewlydevelopedMonteCarlosimulationcode’dcom，用来计算局部新经典扩散系数。将得到的结果与DKES程序的结果进行了比较，两个程序的结果得到了很好的吻合。结果表明，内移组态的扩散系数比标准组态的扩散系数小三到十倍。这种差异不仅表现在L/v区，而且还表现在平台区，因为(L‘10)磁场分量的幅值较大。在径向电场存在的情况下，我们也计算了扩散系数，发现在L/Y区，两种构型的扩散系数之差随着径向电场的增大而变小。
Neoclassical transport coefficients are computed in LHD configurations with two different values of magnetic axis shift in the major radius direction; the "standard" configuration (Ru* = 3'75 m) and the ..inwardshifted''contrguration(R*=3.6m).WeapplyanewlydevelopedMonteCarlosimulationcode' DCOM, to evaluate local neoclassical diffusion coefficients. The obtained results are compared with the results by DKES code for benchmarking and we obtain good agreements between the results of two codes. It is found that the diffusion coefficients ofthe inward shifted configuration are about three to ten times smaller than those of the standard configuration. This difference can be seen not only in the l/v regime but also in the plateau regime due to the larger amplitude of (l'10) magnetic field component' The diffusion coefficients are also evaluated in the presence of radial electric field and we found that the difference between diffusion coefficients in two configurations becomes smaller with stronger radial electric field in the l/Y regime.