Abstract
The experimental and theoretical study are performed to demonstrate the effectiveness of a gentle slope bank against bed scour, in particular, occurring in the outer region of the flow in a curved channel. As the results of this study, the gentle slope bank shows an important effect on the improvement of velocity distribution around the bank and scourring rate without occurrence of water level rising. Those results also indicate the suitable selection of the applied models in accordance with the degree of roughness on the slope, that is, zero equation model for low roughness and k-ε model for high roughness, respectively.
