Flow fields in reflected waves at a sloped sea wall |
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| Authors: | Gerald Müller |
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| Institution: | aCivil Engineering Department, University of Southampton, Highfield, Southampton SO17 1BJ, UK |
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| Abstract: | Wave run-up, and flow visualization experiments were conducted with a 1:2 sloped sea wall model. The visualization experiments gave an overview of flow fields in reflected, non-breaking conditions. Maximum particle velocities were found to be significantly smaller than suggested in the literature. Downrush produced a fast sheet flow, extending down to the toe of the sea wall. This created a ‘reverse’ breaker during the retreat of the initially non-breaking wave, which explains the high-energy dissipation rates for non-breaking waves reported in the literature. Embankments may therefore be exposed to wave impact pressures in areas up to 1.18H0 below MWL. |
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| Keywords: | Sloped sea wall Run-up Downrush Non-breaking waves Energy dissipation |
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