Experimental study of the mean wave overtopping rate of berm breakwaters at different wave steepness conditions

Karthika KrishnaPillai, Amir Etemad-Shahidi, Charles Lemckert

Research output: Book chapter/Published conference paperConference paperpeer-review


Small scale model tests are conducted to examine the wave overtopping behaviour of hardly/partly reshaping berm breakwaters at different wave steepness conditions (0.01 – 0.05). The estimated overtopping rates using the available prediction formulae for berm breakwaters were compared with the measured data (existing and new). It was found that some inaccuracies in estimating the measured overtopping rates exist, especially the new data. In order to better understand the influence of the wave steepness in these uncertainties, the discrepancy ratios of the estimated overtopping rates were plotted as functions of the wave steepness. The results showed that the uncertainties (of the order of 10-fold overestimation or underestimation) in the predictions are more pronounced for the wave steepness range outside 0.03 – 0.04. As such, the data from this study could be used to develop more robust formulae for overtopping rates at berm breakwaters
Original languageEnglish
Title of host publicationCoasts, marine structures and breakwaters 2017
Subtitle of host publicationRealising the potential
EditorsKevin Burgess
Place of PublicationLondon
PublisherICE Publishing Ltd.
ISBN (Electronic)9780727763181
ISBN (Print)9780727763174
Publication statusPublished - 2018
EventCoasts, Marine Structures and Breakwaters 2017: The leading international conference highlighting global marine engineering advances - ACC Liverpool, Liverpool, United Kingdom
Duration: 05 Sept 201707 Sept 2017


ConferenceCoasts, Marine Structures and Breakwaters 2017
Abbreviated titleRealising the potential
Country/TerritoryUnited Kingdom
Internet address


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