本文基于 N - S方程和 K—ε紊流模型 ,对于所选择的五个工况点 ,采用贴体座标系和交错网格系统 ,用 SIMPL EC算法对水泵水轮机转轮内部的紊流进行数值模拟 ,得出了转轮内部流场和压力场的分布。将计算结果用 Tecplot7进行处理 ,分析其在不同工况点时内部的流动状态和压力分布 Based on the N - S equation and K - ε turbulence model, the body coordinate system and the staggered grid system are adopted for the five selected operating points. The turbulence inside the pump turbine runner is analyzed by the SIMPL EC algorithm Numerical simulation results show the distribution of flow field and pressure field inside the rotor. The results of the calculation with Tecplot7 for processing, analysis of the different operating conditions when the internal flow conditions and pressure distribution