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: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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 publicationProceedings of Copenhagen Offshore Wind Conference
Number of pages10
Publication date2005
Publication statusPublished - 2005
Externally publishedYes
EventCopenhagen Offshore Wind 2005 - Copenhagen, Denmark
Duration: 26 Oct 200528 Oct 2005

Conference

ConferenceCopenhagen Offshore Wind 2005
CountryDenmark
CityCopenhagen
Period26/10/200528/10/2005

Cite this

Frigaard, P., Hansen, E. A., Christensen, E. D., & Jensen, M. S. (2005). Effect of breaking waves on scour processes around circular offshore wind-turbine foundations. In Proceedings of Copenhagen Offshore Wind Conference