Coastal structures are often designed to a maximum allowable wave overtopping discharge, hence accurate prediction of the amount is an important issue. Both empirical formulae and neural networks among commonly used tools. In this work, new model for mean discharge presented using innovative machine learning technique XGBoost. The selection features train on carefully substantiated, including r...

In this work the Weakly Compressible SPH-based (WCSPH) model DualSPHysics has been validated and applied to study random wave overtopping of dike-promenade layout in shallow water conditions. Data from physical tests carried out a small-scale flume have used for validation. The results compared terms surface elevation, mean discharges individual volumes distribution. selected geometrical is rep...

One of the common measures for river bank protection is the installation of riprap. There are several methods to design riprap appropriately, which are however generally limited to dumped medium size blocks. Nevertheless, an additional resistance against erosion can be achieved by individually placing blocks in one or several layers instead of dumping them arbitrarily. An experimental investiga...

Abstract As sea level rises and development of the coastal zone continues, flooding poses an increasing risk to communities. Wave runup can contribute many meters vertical reach sea, especially on steep gravel beaches, wave overtopping is a key contributor along coastlines exposed energetic conditions. However, operational forecasting has rarely been attempted due need for high-resolution insho...

This paper presents a recent numerical study conducted by researchers at the National Renewable Energy Laboratory on a point absorber wave energy conversion (WEC) system using a Reynolds-averaged Navier–Stokes (RANS)-based Computational Fluid Dynamics (CFD) method. The device we studied was a two-body floating-point absorber (FPA) that operates predominantly in heave and generates energy from t...