The Effect of Rough Rigid Apron on Scour Downstream of Sluice Gates

Presented in this paper is an experimental study on scour downstream of rough and smooth stiff aprons under the influence wall jets. The effect various parameters asymptotic depth studied. analysis data reveals that maximum reduces with increasing sediment size, sluice opening, apron length. It directly proportional to densimetric Froude number. Maximum equilibrium initially decreases tailwater level (up a minimum), but thereafter increase observed. roughness studied quantification decline due carried out. Scour profiles their temporal variation are also A regression-based equation predict proposed, which conforms data. Based conclusions study, it recommended use over surface confine under-wall