Tokamak transport code simulations with drift wave models
Tokamak transport code simulations with drift wave models
复制标题
使用漂移波模型进行托卡马克输运代码模拟
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
R. Waltz
中科院分区：
文献类型：
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作者：
R. Dominguez;R. Waltz
简单的模型的耗散被困电子，循环电子和环形离子温度梯度漂移模式，连同低m撕裂模式岛的效果，被纳入一个标准的托卡马克传输代码研究异常的能量输运在托卡马克，主要是在Doublet HI托卡马克。在欧姆制度的双重III的模拟，低密度的新Alcator标度。在高密度下，离子温度梯度模式对能量约束时间的饱和有很大贡献。在束流加热制度，该模型预测的能量约束时间有弱的密度和磁场的依赖性，退化与功率和有利的电流标度。通过模拟较小的托卡马克（ISX-A，Alcator A，Alcator C）以及最大的托卡马克，JET，漂移波模型的通用性进一步测试。
Simple models for the dissipative trapped electron, circulating electron and toroidal ion temperature gradient drift modes, together with the effect of low-m tearing mode islands, are incorporated into a standard tokamak transport code to study anomalous energy transport in tokamaks, primarily in the Doublet HI tokamak. In simulations of Doublet III in the Ohmic regime, low density neo-Alcator scaling is obtained. At high density the ion temperature gradient mode contributes strongly to the saturation of the energy confinement time. In the beam heating regime, the model predicts that the energy confinement time has weak density and magnetic field dependence, degradation with power and favourable current scaling. The generality of the drift wave model is further tested by simulating smaller tokamaks (ISX-A, Alcator A, Alcator C) as well as the largest tokamak, JET.