A multi-species collisional operator for full-F global gyrokinetics codes: Numerical aspects and verification with the GYSELA code
A multi-species collisional operator for full-F global gyrokinetics codes: Numerical aspects and verification with the GYSELA code
复制标题
全F全局回旋运动代码的多物种碰撞算子：数值方面和GYSELA代码验证
DOI：
10.1016/j.cpc.2018.08.008
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
C. Passeron
中科院分区：
文献类型：
--
作者：
P. Donnel;X. Garbet;Y. Sarazin;V. Grandgirard;Y. Asahi;N. Bouzat;E. Caschera;G. Dif;C. Ehrlacher;P. Ghendrih;C. Gillot;G. Latu;C. Passeron
已经开发了对任意质量和电荷有效的线性化多物种碰撞算子，并在陀螺动力学代码GYSELA中实现（Grandgirard等人，2016）[1]。该算子具有所有必需的性质：它保持粒子、总动量和能量守恒，满足玻尔兹曼H定理，并恢复新古典结果。该算子考虑了俯仰角散射和能量扩散两者，同时在v θ，μ相空间中操作。关于磁矩的导数使用一组正交多项式上的投影来处理。数值方面的实施进行了详细说明，一组物理基准允许验证的属性的运营商。
A linearized multi-species collision operator valid for arbitrary masses and charges has been developed and implemented in the gyrokinetic code GYSELA (Grandgirard et al., 2016)[1]. This operator has all the required properties: it conserves particles, total momentum and energy, fulfills the Boltzmann H theorem and recovers neoclassical results. This operator takes into account both pitch angle scattering and energy diffusion while operating in the v∥, μ phase space. Derivatives with respect to the magnetic moment are treated using a projection on a set of orthogonal polynomials. The numerical aspects of the implementation are detailed and a set of physical benchmarks allows a verification of the properties of the operator.
影响因子：
2.2
作者：
I. Abel;Michael Barnes;S. Cowley;W. Dorland;A. Schekochihin
通讯作者：
I. Abel;Michael Barnes;S. Cowley;W. Dorland;A. Schekochihin