Progress in two-dimensional plasma edge modelling

Progress in two-dimensional plasma edge modelling
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DOI:
10.1016/s0022-3115(06)80014-0
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发表时间:
1992-12
影响因子:
3.1
通讯作者:
D. Reiter
D. Reiter
中科院分区:
工程技术2区
文献类型:
--
作者:
D. Reiter

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本文综述了托卡马克边缘等离子体主要成分二维数值流体程序处理边缘问题的各种方法的现状。这些模型的预测能力进行评估,特别是关于其完整性和可靠性的传输系数。由于在有利的高再循环制度的等离子体边缘特性是由带电粒子和中性粒子传输效应的相互作用决定的,因此中性粒子的复杂动力学(通常是蒙特卡罗)模型已被构建到这些2D流体程序中。这使得第一次一贯地研究本质上的二维和多物种的影响,如流动逆转或去耦等离子体和杂质或氦灰流。
A review is given of the status of various approaches dealing with tokamak edge related issues by employing two-dimensional numerical fluid codes for the main components of the edge plasma. The predictive capabilities of these models are assessed, in particular with regard to their completeness and the reliability of the transport coefficients. As the plasma edge characteristics in the favourable high recycling regime are determined by the mutual interaction of charged and neutral particle transport effects, sophisticated kinetic (often Monte Carlo) models for the neutral particles have been built into several of these 2D fluid programs. This allows for the first time consistently to study intrinsically 2D and multispecies effects, such as flow reversal or decoupling of plasma and impurity or helium ash flows.