We study the effect of turbulent transport in different magnetic configurations of the Weldenstein 7-X stellarator. In particular, we performed direct numerical simulations with the global gyrokinetic code GENE-3D, modeling the behavior of Ion Temperature Gradient turbulence in the Standard, High-Mirror and Low-Mirror configurations of W7-X. We found that the Low-Mirror configuration produces more transport than both the High-Mirror and the Standard configurations. By comparison with radially local simulations, we have demonstrated the importance of performing global non-linear simulations to predict the turbulent fluxes quantitatively.
我们研究了W7-X仿星器不同磁约束位形中湍流输运的影响。具体而言，我们使用全局回旋动理学代码GENE-3D进行了直接数值模拟，模拟了W7-X标准位形、高镜比位形和低镜比位形中离子温度梯度湍流的行为。我们发现，低镜比位形产生的输运高于高镜比位形和标准位形。通过与径向局域模拟的比较，我们证明了进行全局非线性模拟以定量预测湍流输运通量的必要性。