Comparison of Physical and Numerical Model of Spillway and Pressurized Sediment Channel of a Dam

The one of the most important threat of dam stability is hydrodynamic forces over spillways sediment passage type parts which is under high flow values in their operation conditions. Determination of hydrodynamic forces on this type of structures are vital on their design. Numerical and physical model approaches are using widely for determining of these forces. In the present study, hydraulic and numerical model of the same dam’s spillway and pressurized sediment passage were discussed. Hydraulic model measurements were shown pressure fluctuations are more important than mean vales. Numerical model has supply good fit for mean vales regarding to pressure fluctuations.