Active Absorption of Nonlinear Irregular Waves

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In the present paper, the performance of active absorption systems based on nearfield surface elevation measurements is studied. Based on linear wavemaker theory the performance of such systems can easily be calculated for linear waves. A recent study demonstrated that bound superharmonics in regular waves is also well absorbed by such system and has a re-reflection similar to a linear component. However, the performance of active absorption systems on nonlinear irregular waves has never been studied. In the present paper the absorption of bound sub and superharmonics in bichromatic and irregular waves is examined based on new model tests. The conclusion is that also in irregular waves the bound harmonics are well absorbed by the studied active absorption system.
Original languageEnglish
Title of host publicationCoastal Engineering 2018 : Proceedings of 36th Conference on Coastal Engineering, Baltimore, Maryland, 2018
EditorsPatrick Lynett
Number of pages12
PublisherCoastal Engineering Research Council
Publication date2018
ISBN (Electronic)978-0-9896611-4-0
Publication statusPublished - 2018
EventCoastal Engineering 2018 - Baltimore, United States
Duration: 30 Jul 20183 Aug 2018
Conference number: 36


ConferenceCoastal Engineering 2018
Country/TerritoryUnited States
SeriesCoastal Engineering. International Conference Proceedings


  • Active absorption
  • Physical model tests
  • Nonlinear waves
  • Reflection
  • Wave analysis


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