THREE DIMENSIONAL FLOW PROFILES ON LITTORAL BEACHES

Ib A. Svendsen; Rene S. Lorenz

doi:10.9753/icce.v21.52

No. 21 (1988), Conference Proceedings

No. 21 (1988)

THREE DIMENSIONAL FLOW PROFILES ON LITTORAL BEACHES

Conference Proceedings

https://doi.org/10.9753/icce.v21.52

Published 1988-01-29

Ib A. Svendsen⁺⁻
Rene S. Lorenz⁺⁻

Ib A. Svendsen

Dept. of Civil Engrg., Univ. of Delaware

Rene S. Lorenz

Lie Engineering

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Keywords

littoral beach
3D flow
flow profile

How to Cite

Svendsen, I. A., & Lorenz, R. S. (1988). THREE DIMENSIONAL FLOW PROFILES ON LITTORAL BEACHES. Coastal Engineering Proceedings, 1(21), 52. https://doi.org/10.9753/icce.v21.52

Abstract

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.

https://doi.org/10.9753/icce.v21.52

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THREE DIMENSIONAL FLOW PROFILES ON LITTORAL BEACHES

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