Based on Froude rule,test on a side-inlet pumping station model was conducted with increasing velocity of flow properly.The results showed that:the original scheme would cause a wide range of circulation in the surface layer and bottom layer of the forebay;the side flow deviated badly when the oblique flow get into the intake sump;it would cause sediment deposition easily if the velocity of flow in wing wall's circulation area was too low.It was bad for safe and economic operation of the pump station.Severa...