大型泵站虹吸式出水流道优化水力设计

Optimum Hydraulic Design of Siphon Outlet in Large Pumping Stations

采用三维紊流数值模拟的方法,揭示了大型泵站虹吸式出水流道内的三维流动形态;提出通过建立虹吸式出水流道几何模型并借助三维紊流数值模拟的方法,逐一改变流道几何尺寸、观察流态变化、逐步优化流道型线,以最终实现虹吸式出水流道的优化水力设计;通过专门设计的模型试验。

3D turbulent flow pattern in siphon outlet in large pumping stations was illustrated by using 3D turbulent flow numerical calculation code. A method was put forward based on the code and geometric model of siphon outlet. The optimum hydraulic design of siphon outlet has been realized step by step. The result of the design has also been verified by using special test model via this method.