The dynamic rotating rings electrode (RRE) has proven to be an efficient configuration for removing contaminants. The flow induced by the complex geometry of the RRE was analyzed by computational fluid dynamics (CFD) and the multiple reference frame approach (MRF), rotational speed in the range of 75–500 rpm. Assessment of the three κ-ε type models (standard, renormalization group theory (RNG) and realizable) to solve the turbulent flow was performed. The results show that the realizable model provides a more adequate physical description of the flow than the other models. The global flow was analyzed using integral parameters such as the average flow, circulation time, pumping number, and power number. The local flow was examined qualitatively through velocity profiles and streamlines. The effect of simulating two different positions (0° and 45°) of the RRE moving walls concerning the baffles when using the MRF approach was evaluated. The flow pattern is predominantly radial because the electrode external bars propel the fluid to the lateral tank wall. Besides, the external bars promote regions of high deformation in the fluid that produce vortices. It was found that the result at 0° is in good agreement with the experimental results of mixing time.

动态旋转环电极（RRE）已被证明是用于去除污染物的有效配置。通过计算流体力学（CFD）和多参考框架方法（MRF）分析了RRE的复杂几何形状引起的流动，转速在75-500 rpm范围内。评估了三种κ-ε型模型（标准，归一化群论（RNG）和可实现）以解决湍流。结果表明，与其他模型相比，可实现模型对流提供了更充分的物理描述。使用整体参数（例如平均流量，循环时间，泵送数量和功率数量）分析全局流量。通过速度曲线和流线定性地检查了局部流动。评估了使用MRF方法模拟与挡板有关的RRE移动壁的两个不同位置（0°和45°）的效果。流动模式主要是径向的，因为电极外部杆将流体推动到侧面的罐壁。此外，外部杆促进流体中产生涡旋的高变形区域。发现在0°的结果与混合时间的实验结果非常吻合。