Author(s)

F.C.B. Mascarenhas, E. Valentin & A.L.T. da Costa

Abstract

The interference of man-made structures on natural phenomena as coastal processes are of particular interest when it is desired to detect and predict the evolution of the affected physical system and the environment. In this paper we propose the modelling of the coastline evolution of a beach in which it was built a groin in the past, and the sand transport was strongly modified after that. The modelling is made with respect to two approaches, analytical and numerical, starting from the diffusion equation for the sand transport due to waves in the breaking zone. The analytical solution is based on the theory developed by Pelnard- Considere (1956V and this app

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