The impact of resonant magnetic perturbations (RMPs) on the plasma edge equilibrium and on the turbulence is investigated in a circular limited configuration. The study is based on a Braginski-based isothermal fluid model. The flow response of an unperturbed case to a small amplitude three-dimensional single mode RMP is studied and a scan in amplitude and poloidal and toroidal mode number is performed. Special attention is given when magnetic islands appear in the simulation domain on flux surfaces of rational safety factor. Results show an impact of magnetic perturbations (MPs) on both the plasma equilibrium and on the turbulence properties, with a deviation to the reference solution which depends on the MPs amplitude and on their wavenumbers. The impact of MPs on turbulence is however globally weaker than on the plasma equilibrium, suggesting a stabilizing effect of the MP on turbulent transport. Experimental trends are recovered such as the density pump-out and the increase of the radial electric field as well as the reorganization of the parallel velocity. The ballooning of the transport is modified under the effect of the perturbations, with a shift of the peaked poloidal region from the upper to the lower outer midplane. In the present model, the SOL width is observed decreasing in the presence of MPs. Turbulence properties are also impacted with the density fluctuations level decreasing in perturbed solutions and the intermittency is globally weakened.

在圆形有限配置中研究了共振磁扰 (RMP) 对等离子体边缘平衡和湍流的影响。该研究基于基于 Braginski 的等温流体模型。研究了无扰动情况下对小振幅三维单模 RMP 的流动响应，并进行了振幅和极向和环形模数扫描。当磁岛出现在合理安全系数的磁通表面上的模拟域中时，要特别注意。结果显示了磁扰动 (MPs) 对等离子体平衡和湍流特性的影响，与参考解的偏差取决于 MPs 幅度和它们的波数。然而，MPs 对湍流的影响在全球范围内比对等离子体平衡的影响要弱，表明 MP 对湍流传输有稳定作用。恢复了密度泵出和径向电场增加以及平行速度重组等实验趋势。在扰动的影响下，传输的膨胀发生了变化，峰值极向区域从上部外中平面移到下部外中平面。在本模型中，观察到在 MP 存在下 SOL 宽度减小。湍流特性也受到扰动解决方案中密度波动水平降低的影响，并且间歇性在全球范围内减弱。在扰动的影响下，传输的膨胀发生了变化，峰值极向区域从上部外中平面移到下部外中平面。在本模型中，观察到在 MP 存在下 SOL 宽度减小。湍流特性也受到扰动解决方案中密度波动水平降低的影响，并且间歇性在全球范围内减弱。在扰动的影响下，传输的膨胀发生了变化，峰值极向区域从上部外中平面移到下部外中平面。在本模型中，观察到在 MP 存在下 SOL 宽度减小。湍流特性也受到扰动解决方案中密度波动水平降低的影响，并且间歇性在全球范围内减弱。