Analysis of Rectangular Side Sluice Gate

Abstract

A side sluice gate is a flow‐regulation device widely used in irrigation works for diverting the flow from a main channel to a secondary channel. The discharge of a side sluice gate may be obtained through the concept of an elementary discharge coefficient for an elementary strip along the gate length. Similar to the case of a normal sluice gate, the elementary discharge coefficient for a side sluice gate has been found to be a function of channel flow depth to the gate opening ratio for free‐flow conditions. It depends on an additional parameter, namely, the ratio of the crest width to the gate opening for submerged‐flow conditions. For a broad‐crested side sluice gate, the discharge coefficient involves still one more parameter: the ratio of the crest width to the gate opening.