Fluid-structure interactions associated with wave overtopping are of significance to many engineering applications. Unsteady wave overtopping loads can lead to significant damage or even failure of the structure. Wave overtopping is a challenging problem to study, since it includes complex phenomenon, such as large deformation of the free surface, air entrainment and turbulence. Recently, Lagrangian meshless particle methods such as Smoothed Particle Hydrodynamics (SPH) have become an alternative to conventional Eulerian mesh-based methods for studying complex free surface flows. The purpose of the current study is to compare the performance of the explicit incompressible Smoothed Particle Hydrodynamics (SPH) method with experimental data and previous available numerical results for simulation of wave overtopping on a horizontal deck. The free surface profile at different locations and horizontal velocities at the leading edge of the deck, calculated by explicit ISPH method, show good agreement with the experiment and previous numerical study.
