Print Email Facebook Twitter Modelling Scour in Front of Dune Revetments in a Surf-beat Model Title Modelling Scour in Front of Dune Revetments in a Surf-beat Model Author Van Geer, P.F.C. Van Thiel de Vries, J.S.M. Boers, M. Den Bieman, J.P. McCall, R.T. Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 2014-06-15 Abstract This paper presents adaptations to the XBeach model aimed at including the relevant processes for the generation of scour holes at the toe of a revetment. Dutch assessment rules for the safety of sea defenses need to be adjusted to cope with a combination of sandy dunes and hard elements. To that end, the XBeach model is prepared to be incorporated in the assessment rules. Until now, XBeach did not model scour hole development in front of dune revetments accurately. We suggest to include the advection of turbulence as well as the effect of backwash of short waves that creates additional turbulence in the model. Verification with three physical model experiments shows that with the suggested adaptations of the model a scour hole with significant depth can be modeled. Subject dune erosionXbeachscourdune revetmentICCE 2014 To reference this document use: http://resolver.tudelft.nl/uuid:adcfc8cd-4ed2-40aa-9dd6-190a20b830da Publisher Coastal Engineering Research Council ISBN 9780989661126 Source ICCE 2014: Proceedings of 34th International Conference on Coastal Engineering, Seoul, Korea, 15-20 June 2014 Part of collection Institutional Repository Document type conference paper Rights (c) 2014 Van Geer, P.F.C.Van Thiel de Vries, J.S.M.Boers, M.Den Bieman, J.P.McCall, R.T. Files PDF 7502-31182-1-PB.pdf 247.93 KB Close viewer /islandora/object/uuid:adcfc8cd-4ed2-40aa-9dd6-190a20b830da/datastream/OBJ/view