Analysis of Effects of Rough Strip Energy Dissipator on Hydraulic Property of Bend Flow

Installing rough strip energy dissipators (R-SEDs) at the bottom of curved spillways can facilitate dissipation and flow stabilization. In this study, effects R-SEDs set a 60° bend in spillway were examined. This had large width-to-depth ratio ( B / H > 5 ). Based on physical model tests, distribution hydraulic properties under different runs was studied analyzed. The results show that effectively improved pattern bend. reduced average dimensionless velocity by about 37.9% increasing roughness rate R-SED decreased with an increase discharge ranged between 30% 50%. These indicate it is feasible to apply bends low-flow id="M2"> the tested discharge flow rate = 15 L s will provide theoretical basis for design similar spillways.