Effect of Breaking Waves on Scour Processes around Circular Offshore Wind Turbine Foundations

Peter Frigaard, Erik Asp Hansen, Erik Damgaard Christensen, Morten S. Jensen

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

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Abstract

Scour and scour protection is a major issue for the construction of offshore wind farms. The engineer can either include the scour in his design or he can place a scour protection on the seabed. The optimal solution is highly dependent on the maximal scour depth an unprotected foundation will experience during its lifetime. Today's design practice has not yet been defined for foundations placed in areas with breaking waves. Some engineers include possible wave breaking in the design by increasing scour depth for current alone. So that the design scour depth is considered to be more than 1.5 times the pile diameter. The present study includes some study of scour processes in physical models as well as in a numerical model, under the influence of breaking and broken waves. Only minor influence on the scour depths are observed for the breaking waves.
Original languageEnglish
Title of host publicationNWTC External Web Site
Number of pages10
PublisherNational Wind Technology Center
Publication date2005
Publication statusPublished - 2005
EventCopenhagen Offshore Wind Conference & Exhibition - Copenhagen, Denmark
Duration: 26 Oct 200528 Oct 2005

Conference

ConferenceCopenhagen Offshore Wind Conference & Exhibition
CountryDenmark
CityCopenhagen
Period26/10/200528/10/2005

Keywords

  • Scours
  • Scour Protections
  • Scour Processes
  • Waves
  • Breaking Waves
  • Wind Turbines
  • Offshore Wind Turbines
  • Foundations
  • Wind Farms

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