A NUMERICAL MODEL FOR SEDIMENT TRANSPORT

J.P. Lepetit, A. Hauguel

Abstract


We introduce here a numerical two dimensional model for sediment transport which permits to compute the impact of a coastal structure on the bottom evolution. The introduction of current disturbance and some assumptions using difference of time scale between current and bottom evolutions permits to obtain a propagation equation driving the bottom evolution. The model has been calibrated in the case of the local scour around a jetty. At last, it has been applied to the bottom evolution in the vicinity of the new port of Dunkerque.

Keywords


numerical model; sediment transport

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