This study is part of the two research projects “OpenSHIP - Highly reliable computational fluid-dynamics (CFD) simulations for the prediction of the hydrodynamic performance of the hull-propeller system in OpenSource background” and “OpenViewSHIP – Development of an integrated computational ecosystem for the hydrodynamic design of the hull-propeller system”, co-financed by Friuli Venezia Giulia Region [see acknowledgements], carried out at the Dept. of Engineering and Architecture of the University of Trieste with the aim to establish a strong link between the shipbuilding industry needs and the academic expertise in the field of open-source CFD and High Performance Computing.
In this work the wave-wave interaction problem is tackled, mainly focused on the nonlinear aspects related to the energy exchange between Fourier components of steep breaking or non-breaking waves, specifically in the presence of focusing.
The problem has been studied in the past by the authors in the frame of inviscid flow fully nonlinear simulations. Even though the comparison with experimental results showed extremely good results, the limitations of that work are here overcome. The computations are carried out with OpenFOAM®, adopting a VOF technique at the free surface.
