THE EFFECT OF WIND STRESS ON WAVE OVERTOPPING ON VERTICAL SEAWALL

Onshore wind can significantly affect wave overtopping process and increase mean discharge. Thus, the should be an important variable in coastal design process. However, despite many researches have analyzed influence of on overtopping, there is still a lack exhaustive knowledge about this phenomenon. To further analyze effects, CFD model FLOW-3D has been used to investigate at vertical seawalls. The single-fluid approach adopted, i.e. presence simulated via shear stress sea surface. main aim work verify ability simplified numerical modelling capture macro-processes involved phenomenon overtopping. led physically consistent results. It confirmed that as discharge decreases, effect increases. Furthermore, results shown advection water droplets behind structure by key mechanism for enhancement Finally, gathering laboratory data carried out Durbridge (2021), new predictive formula estimate factor provided.