大型梯级调水工程优化设计泵装置数值仿真

采用雷诺平均纳维-斯托克斯方程（RANS）和标准k-ε双方程模型，运用求解压力耦合方程的半隐式SIMPLEC算法对南水北调东线一期工程台儿庄泵站内部流场进行全流道三维数值模拟．揭示了其内部流动机理和规律，并在此基础上对泵装置流道匹配进行优化设计和性能预测，进而通过泵装置模型试验对数值模拟结果进行了验证．分析计算和试验结果表明：经过优化后的泵装置进出水流道匹配合理，进出水流道流态均匀，泵装置效率高，是台儿庄泵站较为理想的流道组合形式，也间接验证了数值模拟的可行性．

Numerical simulation on pump set model for optimum design of large-scale cascade water delivery project

The Reynolds-averaged Navier-Stokes （RANS） equation is applied for simulation of 3D-flow field in the project of Tai＇erzhuang pumping station, the eastern line first-stage project of the South-to-North Water Transfer Project. The standard k - ε model and SIMPLEC algorithm are adopted in the calculation. The optimum design of pump set inlet and outlet of flow passage is carried out, and the macroscopic performance is predicted. The numerical results agree well with the experimental data. The results of numerical simulation and model experiment indicate that the optimal scheme of numerical simulation is reasonable on inlet and outlet flow passage, the flow pattern in the inlet and outlet passage is uniform and smooth, and the efficiency of pump set is high, which is suitable for Tai＇erzhuang Pumping Station.