Dune erosion near sea walls: Model-data comparison

Dune erosion near sea walls: Model-data comparison

Van Geer, P.
De Vries, S.
Van Dongeren, A.
Van Thiel de Vries, J.S.M.

Civil Engineering and Geosciences

Hydraulic Engineering

2012-07-01

This paper describes the validation of the dune erosion model XBeach with laboratory measurement data of dune erosion in the presence of sea walls and revetments. Simulation results show that the essential dune set back processes are captured by the model and that the measurements at most locations are approximated quite well. Some aspects however need more attention in further research. The alongshore distance from a fixed structure over which the dune erosion is influenced was not well captured by the model. Also the absence of short wave run-up on the revetment still causes an underestimation of the amount of dune erosion above the revetment. Furthermore the influence of the angle of incidence was investigated with a conceptual model approach. This revealed a relatively high influence of the angle of incidence on the governing flow pattern in front of a transition between a dune and a fixed structure.

dune erosion
dike
sea wall
XBeach
validation
laboratory experiments

http://resolver.tudelft.nl/uuid:abc418de-8ad3-410c-9f20-813cc8033985

Coastal Engineering Research Council

2156-1028

ICCE 2012: Proceedings of the 33rd International Conference on Coastal Engineering, Santander, Spain, 1-6 July 2012

Institutional Repository

conference paper

(c) 2012 The Author(s)
Creative Commons BY