弯道河段下游泵站进水前池流态及整流措施.

In order to improve the undesirable flow pattern such as flow deviation, reverse current, vortex caused by the bend flow in the forebay of pumping station, based on the Fluent software, the RNG k-ε turbulent was used to close the Navier-Stockes equations，the SIMPLEC algorithm method was used to simulate the flow field of side-inlet pumping station. The velocities and streamlines about the original and the rectifying schemes had been compared, the uniformity of normal velocity as target function had been adopted to analyze the inlet condition of forebay of pumping station. The results show that the flow pattern is significantly improved when the combined type diversion pier is arranged in the forebay and the length of guide wall is extended, making it earlier for flow to change direction. And there is no flow deviation and reverse current in the forebay. The rectifying measures can increase the straightness and uniformity of flow to make pumping station run effectively. [ABSTRACT FROM AUTHOR]