Simulating ship wave patterns through a 3D parallel SPH code.

An analysis of the 3D wave pattern generated by a ship in stationary forward motion is performed with a particular focus on the bow breaking wave. For this purpose a new 3D parallel SPH solver has been designed. An assessment of the capabilities of the 3D solver to perform wave breaking simulations is preliminarily performed on a test case specifically conceived. The numerical effort to simulate the complete evolution of the flow around the ship with sufficient resolution is considerable in 3D. Consequently, an ad hoc hybrid MPI-OpenMP parallelization has been developed to achieve simulations of hundred million of particles running on a computer cluster. The outcomes are compared with experimental measurements in terms of wave height and features of the bow wave.