WIT Press


Modelling And Predicting Beach Evolution After Groin Construction In The North-east Coast Of Brazil

Price

Free (open access)

Volume

15

Pages

9

Published

1996

Size

683 kb

Paper DOI

10.2495/CENV960091

Copyright

WIT Press

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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