Numerical Study of the Effective Parameters on the Energy Dissipation Rate of the Baffled Chutes

Baffled chutes are structures that are used to dissipate energy in chutes and water transmission and distribution structures. In the present study, baffled chutes were numerically studied using the Flow-3D numerical model. For this purpose, upon defining the boundary conditions, the validation was done using available experimental data and then, the effect of slope, chute length as well as the distance between baffles and their height on the energy dissipation rate of the baffled chutes was studied. The results showed that by increasing the distance between the baffle rows, the energy dissipation rate decreased. By increasing the height of the baffles using the design method proposed by the USBR, the energy dissipation rate slightly decreased. For similar slopes and other dimensions, by increasing the chute length by three times, the energy dissipation increased by 21.4%, and the energy dissipation rate decreased by increasing chute slope.