Experimental validation and characterization of mean swash zone boundary conditions

Abstract

Performances of recently developed shoreline boundary conditions for wave-averaged nearshore flow solvers are evaluated on the basis of available experimental data. Applications of the model to experimental data show the chosen equations suitably determine boundary values required for one-dimensional mean flow. A detailed illustration is also given of the characteristics of flow properties which appear in the model. It is, finally, shown that very simple conditions can be suitably used at the mean shoreline of wave-averaged flows for which boundary values of position, water depth, and velocity are computed on the basis of local quantities known at the seaward boundary of the swash.