Numerical Modeling of Hydraulic Jump in Stilling Basin of Nemrood Reservoir Dam
One of the most important ways for dissipation of excess energy in downstream of overflow dams is the occurrence of hydraulic jump. In this research the hydraulic jump phenomenon was simulated using the Flow-3D software with two different turbulence models including the standard and RNG models. For this type of phenomenon and most accurate predictions of hydraulic jump characteristics، these two turbulence models were first verified using the data measured in a laboratory flume by Chanson and Chacherau. It was found that the RNG turbulence model performed much better than the standard turbulence model. The model was then applied for simulation of hydraulic jump in the physical model of Nemrood dam stilling basin. The computed pressure، velocity distributions and water surface profiles were compared with the corresponding experimental measured data that matched together successfully.
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