stella: An operator-split, implicit-explicit df-gyrokinetic code for general magnetic field configurations
stella: An operator-split, implicit-explicit df-gyrokinetic code for general magnetic field configurations
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stella：用于一般磁场配置的算子分割、隐式显式 df 回旋运动代码
DOI：
10.1016/j.jcp.2019.01.025
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发表时间：
2019
影响因子：
4.1
通讯作者：
Barnes M
中科院分区：
文献类型：
--
作者：
Barnes M
在这里，我们提出了一个混合的隐式-显式数值方案的解决方案的陀螺动力泊松方程组的局部极限的细节。该方案已被实施在一个新的代码称为，这是能够发展的静电波动与完整的动力学电子效应和任意数量的离子物种在一般的磁性几何形状。我们证明了这种混合方法的优势，一个完全明确的治疗，并提供线性和非线性基准比较轴对称和非轴对称磁平衡。
Here we present details of a mixed implicit-explicit numerical scheme for the solution of the gyrokinetic-Poisson system of equations in the local limit. This scheme has been implemented in a new code called, which is capable of evolving electrostatic fluctuations with full kinetic electron effects and an arbitrary number of ion species in general magnetic geometry. We demonstrate the advantages of this mixed approach over a fully explicit treatment and provide linear and nonlinear benchmark comparisons for both axisymmetric and non-axisymmetric magnetic equilibria.