Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
STRAND—A Model for Longshore Sediment Transport in the Swash Zone
In this paper we report on the development and performance of an engineering model, STRAND which has the aim of predicting longshore movement of coarse sediment above the still water line of steep beaches. The model assumes that this transport is driven by swash run-up at the edge of an unsaturated inner surfzone and uses Nielsen's formulation for sediment transport rate. The hydrodynamic sub-model is shown to agree well with field measurements of swash run-up and swash period. We argue that consideration of interactions between subsequent swash events implies that a monotonic relationship between transport rate and incident wave period is inappropriate. Bulk longshore transport rates are shown to compare reasonably with previous estimates from field studies in the UK and accounts for up to 50% of the net longshore flux. Agreement of this simplified model with one of the best available laboratory data sets, Kamphuis, is very good indeed. However, new laboratory and field data are required before stronger conclusions can be drawn.
STRAND—A Model for Longshore Sediment Transport in the Swash Zone
In this paper we report on the development and performance of an engineering model, STRAND which has the aim of predicting longshore movement of coarse sediment above the still water line of steep beaches. The model assumes that this transport is driven by swash run-up at the edge of an unsaturated inner surfzone and uses Nielsen's formulation for sediment transport rate. The hydrodynamic sub-model is shown to agree well with field measurements of swash run-up and swash period. We argue that consideration of interactions between subsequent swash events implies that a monotonic relationship between transport rate and incident wave period is inappropriate. Bulk longshore transport rates are shown to compare reasonably with previous estimates from field studies in the UK and accounts for up to 50% of the net longshore flux. Agreement of this simplified model with one of the best available laboratory data sets, Kamphuis, is very good indeed. However, new laboratory and field data are required before stronger conclusions can be drawn.
STRAND—A Model for Longshore Sediment Transport in the Swash Zone
Wellen, Erik Van (Autor:in) / Baldock, Tom (Autor:in) / Chadwick, Andrew (Autor:in) / Simmonds, David (Autor:in)
27th International Conference on Coastal Engineering (ICCE) ; 2000 ; Sydney, Australia
Coastal Engineering 2000 ; 3139-3150
23.03.2001
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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