Numerical modeling of wave overtopping on rubble-mound breakwaters (Case study: Breakwater of Parsian port)

In the present paper, owing to importance of seeking a proper hydraulic response evaluation of the rubble mound structure against the incident waves, a systematic study has been carried out to investigate the wave overtoping on rubble mound breakwater. To gain this goal, numerical simulation was conducted an apposite range of sea state condition and geometrical parameters to investigate wave overtopping on rubble mound breakwater. In the current research, the effects of environmental parameters such as wave height, wave period, water depth and also a diversity of geometrical parameters including berm width, front slope and crest freeboard over the overtopping discharge, have been individually scrutinized and studied. The Flow-3D software has been used to simulate and solve the governing equations on the flow. The numerical results have been validated using experimental results. The computed results of wave overtopping discharge over parsian breakwater agree well with the physical model results. The present study, results showed that an increase in wave height, wave period and water depth would increase the wave overtopping on crest breakwater. Also, results outlined by enhancing the structural parameters like berm width and crest freeboard would increase the wave overtopping. As the slope gets steeper, the wave overtopping will be on a striking increase and strongly run-up level will be increased.