Using transport models, the impacts of trapped electrons on zonal flows and turbulence in helical field configurations are studied. The effect of the trapped electrons on the characteristic quantities of the linear response for zonal flows is investigated for two different field configurations in the Large Helical Device. The turbulent potential fluctuation, zonal flow potential fluctuation and ion energy transport are quickly predicted by the reduced models for which the linear and nonlinear simulation results are used to determine dimensionless parameters related to turbulent saturation levels and typical zonal flow wavenumbers. The effects of zonal flows on the turbulent transport for the case of the kinetic electron response are much smaller than or comparable to those in an adiabatic electron condition for the two different field configurations. It is clarified that the effect of zonal flows on the turbulent transport due to the trapped electrons changes, depending on the field configurations.

中文翻译：

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螺旋等离子体中湍流传输的简化模型，包括带状流动和俘获电子的影响

使用传输模型，研究了俘获电子对螺旋场配置中的纬向流和湍流的影响。对于大螺旋装置中的两种不同场配置，研究了俘获电子对纬向流线性响应特征量的影响。湍流势波动、纬向流势波动和离子能量传输通过简化模型快速预测，其中线性和非线性模拟结果用于确定与湍流饱和度和典型纬向流波数相关的无量纲参数。在动态电子响应的情况下，纬向流对湍流传输的影响远小于或与两种不同场配置的绝热电子条件下的影响相当。清楚的是，由于俘获电子的变化，纬向流对湍流传输的影响取决于场配置。