WAKE WASH OF HIGH-SPEED CRAFT IN COASTAL AREAS

Jens Kirkegaard, Henrik Kofoed-Hansen, Berry Elfrink

Abstract


In recent years fast ferries have been introduced on many ferry routes throughout the world. Particularly when operating in shallow waters and near the coast, the waves generated by these ferries give rise to conflicts with recreational use of beaches and coastal waters. Also the potential coastal erosion caused by a changed wave impact has been a matter of concern. The paper presents the results of studies carried out with the objective of providing an unbiased description of these wave phenomena, which has served as basis for a new legislation for regulation offast ferry operation. The coastal erosion potential was studied and sediment transport simulations showed that the longperiodic ship-generated waves give rise to beach accretion and steepening of the crossshore profile.

Keywords


wake wash; high speed craft

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