Numerical reproduction of extreme wave loads on a gravity wind turbine foundation

Henrik Bredmose, E.A. Hansen, J. Skourup, Erik Damgaard Christensen, L.M. Pedersen, A. Mitzlaff

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

Abstract

A fully nonlinear 3D Navier Stokes solver with VOF (Volume of Fluid) treatment of the free surface is used to reproduce two extreme laboratory wave impacts on a gravity wind turbine foundation. The wave climate is irregular waves with a current. Numerical results for inline force, overturning moment and run-up are compared to measurements. The extreme wave loads for the two events are associated with slamming onto the under side of a horizontal platform placed 9.1m above the still water level. For such impacts, the computed wave loads are strongly sensitive to the shape of the incoming waves. A comparison with a Morison-type estimation of the wave loads shows that this much simpler approach can reproduce the overall trend of the wave load history, but not the extreme moment.
Original languageEnglish
Title of host publicationProceedings of the ASME 25th International Conference on Offshore Mechanics and Arctic Engineering
Volume1
PublisherAmerican Society of Mechanical Engineers
Publication date2006
Pages279-287
ISBN (Print)0-7918-4746-2
Publication statusPublished - 2006
Externally publishedYes
EventThe 25th International Conference on Ocean, Offshore and Arctic Engineering - Hamburg, Germany
Duration: 1 Jan 2006 → …
Conference number: 25

Conference

ConferenceThe 25th International Conference on Ocean, Offshore and Arctic Engineering
Number25
CityHamburg, Germany
Period01/01/2006 → …

Cite this

Bredmose, H., Hansen, E. A., Skourup, J., Christensen, E. D., Pedersen, L. M., & Mitzlaff, A. (2006). Numerical reproduction of extreme wave loads on a gravity wind turbine foundation. In Proceedings of the ASME 25th International Conference on Offshore Mechanics and Arctic Engineering (Vol. 1, pp. 279-287). American Society of Mechanical Engineers. http://www.omae2006.com/