Numerical modelling of coastal defences using the smoothed particle hydrodynamic method

The present paper reports the results of the application of the Smoothed Particle Hydrodynamics (SPH) method to model the wave run-up over an armour breakwater. The units that form the outer layer of the structure have been modelled in 3D to validate the response under wave attacks. The open-source GPU DualSPHysics code has been used because of its capability to simulate millions of particles required for an accurate modelling. The run-up heights have been computed and compared with empirical solutions. The results are in agreement with the ones obtained using literature formulae.