Analysis of Wave Reflection from Structures with Berms Through an Extensive Database and 2DV Numerical Modelling

Barbara Zanuttigh, Jentsje W. van der Meer, Thomas Lykke Andersen, Javier L. Lara, Inigo J. Losada

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

6 Citations (Scopus)


This paper analyses wave reflection from permeable structures with a berm, including reshaping cases. Data are obtained from recent wave flume experiments and from 2DV numerical simulations performed with the COBRAS-UC code. The objectives of this research were to identify the proper representation of the average structure slope to be included in the breaker parameter and to check the performance of the formula for the reflection coefficient developed for straight slopes by the Authors. Based on the observation that for reflection, differently from what happens for overtopping and runup, the whole slope below sea water level (SWL) is important, the slope to appear in the breaker parameter is evaluated as a weighted average of the structure slope below the berm level and the average slope in the run-up/run-down area. The inclusion of this slope in the proposed formula allows to extend its prediction capacity to structures with a berm and a fair agreement with both experiments and simulations is obtained.
Original languageEnglish
Title of host publicationCoastal Engineering 2008 : Proceedings of the 31st International Conference : Hamburg, Germany, 31 August - 5 September 2008
EditorsJane Mckee Smith
PublisherInternational Conference on Coastal Engineering
Publication date2009
ISBN (Print)9789814277402 (vol.4), 9789814277365 (Set)
Publication statusPublished - 2009
EventThe International Conference on Coastal Engineering - Hamburg, Germany
Duration: 31 Aug 20085 Sept 2008
Conference number: 31


ConferenceThe International Conference on Coastal Engineering

Bibliographical note

The proceedings is also published as a eProceedings. See the DOI.


  • Wave reflection
  • Breakwaters
  • Berm
  • Composite slope
  • Reflection coefficient
  • Breaker parameter
  • Database
  • Numerical model


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