Wave reflection in 3D conditions |
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| Authors: | Barbara Zanuttigh Thomas Lykke Andersen |
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| Institution: | 1. University of Bologna, DISTART, Viale Risorgimento 2, 40136 Bologna, Italy;2. Aalborg University, Dep. of Civil Engineering, Sohngårdsholmsvej 57, 9000 Aalborg, Denmark |
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| Abstract: | Based on recent experiments carried out in wave basin on breakwaters with armour layer of rocks and cubes, this paper examines the dependence of the reflection coefficient on wave directional spreading and obliquity. Results suggest that long-crested and short-crested waves give similar reflection. The reflection coefficient is markedly dependent on the wave angle of incidence. The performance of formulae available in the literature is checked against the new dataset and a significant improvement is proposed by including the wave obliquity factor that appears in the traditional expression for the overtopping discharge. |
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| Keywords: | Wave reflection Breakwaters Wave obliquity Long-crested waves Short-crested waves Rocks Cubes |
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