Run-up measurements under very oblique wave incidence

Abstract

Under the scope of the HYDRALAB+ transnational access project, the so-called RODBreak was conducted in the directional wave basin at the Marienwerden facilities of the Leibniz UniversityHannover (LUH).A stretch of a rubble-mound breakwaterwas built in the wave basinwith a very gentle slope and an armour layer made of Antifer cubes, at the roundhead and adjoining trunk, and rock, at the rest of the trunk.Aset of scale-model tests wascarried out to extend the range of wave steepness values analysedin wave run-up, overtopping and armour layer stability studies, focusing on oblique extreme wave conditions,with incident wave angles from 40º to 90º.The present study focuses on the analysisof measured wave run-up values obtained ina physical model and on its variability with wave parameters and wave obliquity.