MODELLING STORM SURGE WAVE OVERTOPPING OF SEAWALLS WITH NEGATIVE FREEBOARD

Computational modelling of combined storm surge and wave overtopping of embankments

In this paper we investigate the process of embankment wave overtopping combinedwith overflow due to extreme surge levels that are above the embankment crest. AReynolds Averaged Navier-Stokes (RANS-VOF) model is employed to simulate thehydrodynamics. To investigate the success of the model at reproducing thehydrodynamic processes, the model is compared with experimental laborato...

Storm surge modelling for Bunbury

Boussinesq Modelling of Solitary Wave Propagation, Breaking, Runup and Overtopping

A one-dimensional hybrid numerical model is presented of a shallow-water flume with an incorporated piston paddle. The hybrid model is based on the improved Boussinesq equations by Madsen and Sørensen (1992) and the nonlinear shallow water equations. It is suitable for breaking and non-breaking waves and requires only two adjustable parameters: a friction coefficient and a wave breaking paramet...

Downscaling Effects on Modelling Waves, Tides and Storm Surge

This paper presents the results of downscaling effects when modelling waves, tides and storm surge using a nested modelling system. In this study, the coupled POLCOMS/ProWAM models are used, with 3 nested computational domains, the largest of which covers part of north-eastern Atlantic Ocean with a coarse resolution grid and the smallest covers the surrounding waters of south-west Cornish coast...

Modelling the Tracy storm surge – implications for storm structure and intensity estimation

The results of hydrodynamic storm surge modelling are used to inform and construct a detailed quantitative description of the possible changing structure and intensity of severe tropical cyclone Tracy as it proceeded across Beagle Gulf to landfall at the City of Darwin in 1974. The measured storm surge is used as an independent wind calibration proxy to augment the measured eyewall winds and pr...