Effects of wave–current interaction on the current profile |
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| Authors: | Maitane Olabarrieta Raul Medina Sonia Castanedo |
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| Institution: | Environmental Hydraulic Institute, IH Cantabria, Universidad de Cantabria, E.T.S.I. Caminos, Canales y Puertos, Avd. Los Castros s/n., 39005 Santander, Spain |
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| Abstract: | Wave–current laboratory experiments have shown that the logarithmic current profile observed in pure current flows is modified due to the presence of waves. When waves propagate opposite the current, an increase in the current intensity is achieved near the mean water level, while a reduction is obtained for following waves and currents. With the aim of analyzing these nonlinear effects along the whole water column, an Eulerian wave–current model is presented. In contrast to previously presented wave–current models, the present is able to include the variation of the free surface elevation due to the wave motion and the effect of a non hydrostatic pressure field. Therefore it does not restrict its application to waves in shallow waters. Moreover, the model is able to simulate all the possible angles between waves and currents. |
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| Keywords: | Wave&ndash current interaction Boundary layers Apparent bed roughness Reynolds stresses Turbulence |
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