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Vorticity and Surf Zone Currents
Water wave breaking is of considerable importance in the transfer of momentum from the waves to currents. Near shore lines most of the water motions are dominated by breaking waves. Recent work on the generation of vorticity by breaking waves and bores in the surf zone on beaches within the shallow water approximation has shown that non-uniformity in the strength of bores is an important source of potential vorticity. This is illustrated by discussing the generation of longshore currents and illustrated with a numerical example of vorticity generation due to a non-uniform bed. These demonstrate that the horizontal excursion of vorticity transported by the incident waves may be a significant factor in interpreting velocity measurements at a fixed site.
Vorticity and Surf Zone Currents
Water wave breaking is of considerable importance in the transfer of momentum from the waves to currents. Near shore lines most of the water motions are dominated by breaking waves. Recent work on the generation of vorticity by breaking waves and bores in the surf zone on beaches within the shallow water approximation has shown that non-uniformity in the strength of bores is an important source of potential vorticity. This is illustrated by discussing the generation of longshore currents and illustrated with a numerical example of vorticity generation due to a non-uniform bed. These demonstrate that the horizontal excursion of vorticity transported by the incident waves may be a significant factor in interpreting velocity measurements at a fixed site.
Vorticity and Surf Zone Currents
Peregrine, D. H. (Autor:in) / Bokhove, O. (Autor:in)
26th International Conference on Coastal Engineering
Coastal Engineering 1998 ; 745-758
26.04.1999
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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