A first-principles self-consistent model of plasma turbulence and kinetic neutral dynamics in the tokamak scrape-off layer
A first-principles self-consistent model of plasma turbulence and kinetic neutral dynamics in the tokamak scrape-off layer
复制标题
托卡马克刮落层等离子体湍流和运动中性动力学的第一性原理自洽模型
DOI：
10.1088/0029-5515/55/12/123014
复制
发表时间：
2015
期刊：
影响因子：
3.3
通讯作者：
P. Ricci
中科院分区：
文献类型：
--
作者：
C. Wersal;P. Ricci
提出了一种结合等离子体和中性物理的第一性原理自洽模型，适用于模拟托卡马克等离子体的湍流行为。等离子体的模型是由两个减少漂移的流体Braginskii方程建立的，而中性粒子的动力学模型则是在短和长平均自由程情况下有效的。该模型包括电离、电荷交换、复合和弹性碰撞过程。中性动力学方程的解在GBS等离子体湍流代码中实现（Ricci et al 2012 plasma physics）。控制。融合54 124047)，并通过使用特征方法进行。讨论了数值实现的细节。最后，我们展示了等离子体湍流和中性动力学的首次自洽模拟的初步结果。
A first-principles self-consistent model that couples plasma and neutral physics suitable for the simulation of turbulent plasma behavior in the tokamak SOL is presented. While the plasma is modeled by the drift-reduced two fluid Braginskii equations, a kinetic model for the neutrals is developed, valid in short and in long mean free path scenarios. The model includes ionization, charge-exchange, recombination, and elastic collisional processes. The solution of the neutral kinetic equation is implemented within the GBS plasma turbulence code (Ricci et al 2012 Plasma Phys. Control. Fusion 54 124047) and it is performed by using the method of characteristics. The details of the numerical implementation are discussed. Finally, we show initial results of the first self-consistent simulations of plasma turbulence and neutral dynamics.