Palabras clave
littoral beach
3D flow
flow profile
3D flow
flow profile
Cómo citar
THREE DIMENSIONAL FLOW PROFILES ON LITTORAL BEACHES. (1988). Coastal Engineering Proceedings, 1(21), 52. https://doi.org/10.9753/icce.v21.52
Resumen
The problem of combined cross-shore and longshore currents generated by waves in and around a surf zone is considered in its full three-dimensional formulation. The equations for the two current components are decoupled and it is found that for a cylindrical coast with no longshore variations the longshore current variation with depth and distance from the shoreline satisfies a Poisson equation. This equation is solved by a perturbation method and it is shown that the longshore velocities are always larger than the velocities found by classical theory. In the simple uncoupled case, the full 3-D current profile is constructed by combining the results with cross - shore velocities determined in previous publications. Also, the total velocities are larger than velocities found from simple depth averaged models.
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