【摘要】 水泵水轮机转轮可以在正反两个方向上旋转，用一个转轮分别实现水泵和水轮机工况的运行．在设计阶段提前预知转轮在两种工况下的流场以及能量特性对于提高水泵水轮机的设计水平和运行质量具有重要的意义．本文基于三维 Navier-Stokes 方程和标准 k-ε模型，采用贴体坐标和交错网格系统，用 SIMPLEC 算法分析了水泵水轮机转轮中的三维紊流流场． 对比了转轮在水轮机和水泵两种工况下的流场，同时讨论了转轮的能量特性．更多还原

【Abstract】 ：The three-dimensional Navier-Stokes equations and the standard k-ε model have been used to analyze the flows through a pump-turbine runner． The SIMPLEC algorithm with body-fitted coordination and staggering grid system is used for the solution procedure of the discretized governing equations for this problem． Based on the results of the numerical simulation， performances of the runner in both pump and turbine operating conditions were predicted． Computational results show that the efficiencies of the runner are higher in pump operation conditions than these in turbine operation conditions．更多还原