采用标准κ-ε模型和SIMPLE算法,对泵站前池水流流态进行了数值模拟。根据模拟前池水流的速度矢量图和断面垂线速度分布分析了泵站前池型式、扩散角与天然扩散角的关系和开机决策对泵站进水流态的影响,所得结论与泵站前池的设计理论十分吻合,这不论对泵站的设计还是改造都具有指导意义。 The standard κ-ε model and SIMPLE algorithm are used to simulate the water flow in the front of the pump station. According to the velocity vector diagram and the vertical velocity distribution in the front of the simulation pool, the relationship between the type and diffusion angle of the forebay of the pump station and the natural diffusion angle and the influence of the start-up decision on the inlet flow regime of the pump station are analyzed. Is very consistent with the design theory, which is instructive for the design or renovation of the pumping station.