Analysis of Side Sluice in Trapezoidal Channel

ABSTRACT Side sluice gates are used in open channel to divert the flow from parent channel to side channel for different purposes like irrigation, land drainage, sewage system, sanitary system and storm relief. In the recent past, many researchers have investigated the behavior of side sluice considering the parent channel shape as rectangular. In most of the practical cases trapezoidal shaped parent channel is used. Hence it is necessary to establish safe and economic angle of entrance at the side channel. In the present investigation, trapezoidal parent channel and rectangular side channel arrangement was chosen for study. In this study, effects of upstream side bank alignment of parent channel on the coefficient of discharge and water surface profiles were discussed. The four alignments of side bank (900,750,600,450,300) were studied with respect to the direction of flow in parent channel. This study showed that as Froude number increases, coefficient of discharge decreases. In practical application, instead of using upstream side bank alignment of parent channel as normal (900), it is good to use 750, 600, 450, 300