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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
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Wave run-up on rubble breakwaters: spectral effects
Van de Walle, B.; De Rouck, J.; Troch, P.; Geeraerts, J.; Frigaard, P. (2005). Wave run-up on rubble breakwaters: spectral effects. Maritime Engineering 158(2): 59-67
In: Maritime Engineering. Thomas Telford: London (1 Heron Quay, London, E14 4JD). ISSN 1741-7597; e-ISSN 1751-7737, meer
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coastal engineering; design methods & aids; sea defences |
| Auteurs | | Top |
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- Geeraerts, J., meer
- Frigaard, P.
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| Abstract |
Seven sets of data for wave run-up on a rubble mound breakwater were combined and re-analysed, with full-scale, large-scale and small-scale model test results being taken into account. The dimensionless wave run-up value Ru 2%/H m0 was considered, where Ru 2% is the wave run-up height exceeded by 2% of the wave run-up events and H m0 is the significant wave height. The wave run-up data sets were compared and a clear influence of the spectral shape, characterised by the spectral width parameter e, on wave run-up was noticed: high values of e correspond to high values of Ru 2%/H m0 and vice versa. Differences in wave run-up results between the various data sets could be explained by a difference in spectral width observed within these data sets. A multi-regression formula was fitted to all wave run-up data. The formula is valid for permeable rubble mound breakwaters covered with either grooved cubes or rip-rap with a slope steeper than 1 : 2, surging waves and a JONSWAP-type wave spectrum. |
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