Experimental and Numerical Comparison of Hydraulic Parameters of Ski-Jump Bucket Energy Dissipator

Abstract

Ski-jump spillways are the most important structures used when flow velocity exceeds 20 m/s. In the present study attempts have been made to study in detail the flow hydraulic parameters over ski-jump spillway. The development of computer science and different types of computational fluid dynamics (CFD) software, the behavior of ski-jump spillways can be studied in a short time and without paying high expenses. In this study, Flow 3D software has been used to simulate flow over ski-jump spillways and results were compared with experimental data. The model tests were carried out in a hydraulic flume for four distinct discharges. The volume of fluid (VOF) method is applied to obtain the free surface. The computational results showed a close agreement with experimental data obtained in the laboratory.