A non-hydrostatic model for wave evolution on a submerged trapezoidal breakwater

A depth-averaged non-hydrostatic model is formulated to investigate wave evolution on a water channel with submerged trapezoidal breakwater. This an extension of nonlinear shallow equations that includes hydrodynamic pressure and vertical velocity. In the momentum equation, diffusion term also considered represent turbulence effects in system. The are solved numerically using combination staggered finite volume method predictor–corrector procedure. Comparisons made against three independent laboratory experiments propagation over breakwaters. level agreement higher than Boussinesq-type RANS models. numerical scheme used study effect height, length, coefficient breakwater propagation. We have found those characteristics affect similarly by smoothing shape significantly reducing transmitted amplitude.