Application of 3D hydrodynamic model to flood risk assessment

Abstract

In this paper a newly developed three-dimensional hydrodynamic model has been used to investigate the consequences of the site redevelopment of Llanwern and flooding prevention measures. The 3D model includes hydrodynamic pressure without static pressure assumption. Two possible flooding risks have been analysed—tidal flooding from the south and fluvial flooding from the River Usk. Modelling results show that the consequences of the redevelopment and flood prevention measures are minimal on the surrounding area.