Pressures By Breaking Waves on a Slope Computed With a VOF Model

A numerical model, solving the Navier-Stokes equations with a Volume-of-Fluid (VOF) method has been used to simulate wave breaking on an impermeable slope. The VOF-method applied in the present study has been improved and applied to compute pressures on a slope caused by breaking waves. The comparison of the computational results with results from physical model tests demonstrates a good performance of the model. A qualitative comparison shows that the wave pattern is simulated realistically. Both the overturning of the waves and the bouncing of the wave tongue after hitting the slope are present in the numerical model results. Comparison of the measured and the computed pressure signals shows that the model provides reasonable results for conditions with non-overtopping waves and for some cases with overtopping waves.