Sharif Digital Repository

Chutes and stepped spillways are used to provide controlled release of flows and overflow in flood regimes from a dam into the downstream area. The main purpose of steps is to produce considerable energy dissipation along the chute and reduce the size of the required downstream energy dissipation basin. Many researches conducted on this matter and the effects of different factors like the height of steps, the number of steps, the different shapes of steps – mild step and end-sill step – influencing on energy dissipation have been studied. In this study, three different stepped spillway experimental models with different heights (5, 8 and 10 cm) and different number of steps developed, and...