Study of the interaction of a solitary wave with a submerged obstacle through a depth semi-averaged model

Ocean wave forecast and hindcast are very important in several fields linked to the exploitation of the coastlines. They are important for the construction and management of o?shore structures and harbors and for naval operations. For example, in the case of harsh see conditions, it is important to understand the interaction of the waves and currents with the local bathymetry to guide the docking operations of vessels. Moreover, nowadays, to maximize the energy extraction of recent wave energy converters (WEC), the settings of the Power Take O? and the activation of the survival modes rely on the correct evaluation of the most energetic sites and on accurate and reliable wave forecasts. While numerical ocean modeling forecast have been available for many years [4], it is only recently that the numerical models have been specialized for the forecast in more confined areas and the reliability of the models is still low compared to the required standard to maximize the energy extraction times for WECs. Here, we use a non-hydrostatic model [2] that is eciently able to follow the non-linear wave propagation while retaining the dispersion, shoaling, refraction, and di?raction features from deep to shallow water conditions. It overcomes some limitations of the commercial software like MIKE 3 [3]; in fact, the domain can assume whatever shape, with stretching in each of the coordinate direction to accommodate the local bathymetry and there is no limit in the direction of the inflow conditions.