本研究评估了水厂clearwell的T10/T比率，这是确定是否符合地表水处理规则的关键因素之一。使用计算流体力学（CFD）评估T10/T比。在这种分析方法中，采用k-ε湍流模型对三维时间平均Navier-Stokes流体流动方程进行离散，并使用计算机在有限差分网格上进行求解。根据计算的速度场，计算了各种水颗粒的路径和停留时间。然后，确定颗粒停留时间分布，并评估T10/T比。

This study evaluated the T10/T ratio for a water plant clearwell, one of the key factors for determining compliance with the Surface Water Treatment Rule. The T10/T ratio is evaluated using Computational Fluid Dynamics (CFD). In this method of analysis, the three dimensional time-averaged Navier-Stokes fluid flow equations with a k-epsilon turbulence model are discretized and solved over a finite difference grid using a computer. From the calculated velocity field, the paths and residence times of various water particles are computed. After that, the particle residence time distribution is determined, and the T10/T ratio is evaluated.