Scour protection around offshore wind turbines. Monopiles

Anders Wedel Nielsen (Invited author), B. Mutlu Sumer (Invited author), Jørgen Fredsøe (Invited author), Erik Damgaard Christensen (Invited author)

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Abstract

The flow processes in a scour protection around a mono-pile in steady current is described in relation to transport of sediment in the scour protection based on physical model tests. Transport of sediment in the scour protection may cause sinking of the scour protection. TYhis may reduce the stability of the mono-pile and change for instance the natural frequency of the dynamic response odf an offshore wind turbine in an unfacorable manner. The most importans flow process with regard to transport of sediment and sinking of the scour protection in found to be the horseshoe vortex. It is found that a larger pile diameter relative to the size of the protection stones will cause a larger sinking and that two layers of stones will descrease the sinking relative to one layer of stones with the same size.
Original languageEnglish
Title of host publicationICSE-5
PublisherAmerican Society of Civil Engineers
Publication date2010
Pages440-449
Publication statusPublished - 2010
Event5th International Conference on Scour and Erosion - San Francisco, CA, United States
Duration: 7 Nov 201010 Nov 2010
Conference number: 5
http://content.asce.org/conferences/icse-5/

Conference

Conference5th International Conference on Scour and Erosion
Number5
CountryUnited States
CitySan Francisco, CA
Period07/11/201010/11/2010
Internet address

Cite this

Nielsen, A. W., Sumer, B. M., Fredsøe, J., & Christensen, E. D. (2010). Scour protection around offshore wind turbines. Monopiles. In ICSE-5 (pp. 440-449). American Society of Civil Engineers.