Application of CFD based wave loads in aeroelastic calculations

Signe Schløer, Bo Terp Paulsen, Henrik Bredmose

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

    Abstract

    Two fully nonlinear irregular wave realizations with different significant wave heights are considered. The wave realizations are both calculated in the potential flow solver Ocean-Wave3D and in a coupled domain decomposed potential-flow CFD solver. The surface elevations of the calculated wave realizations compare well with corresponding surface elevations from laboratory experiments.
    In aeroelastic calculations of an offshore wind turbine on a monopile foundation the hydrodynamic loads due to the potential flow solver and Morison’s equation and the hydrodynamic loads calculated by the coupled domain decomposed potentialflow CFD solver result in different dynamic forces in the tower and monopile, despite that the static forces on a fixed monopile are similar. The changes are due to differences in the force profiles and wave steepness in the two solvers.
    The results indicate that an accurate description of the wave loads is very important in aeroelastic calculations especially in cases where the aerodynamic loads and damping are insignificant.
    Original languageEnglish
    Title of host publicationProceedings of the ASME 33rd 2014 International Conference on Ocean, Offshore and Arctic Engineering
    Number of pages11
    PublisherThe American Society of Mechanical Engineers (ASME)
    Publication date2014
    Article numberOMAE2014-24684
    Publication statusPublished - 2014
    Event33rd International Conference on Ocean, Offshore and Arctic Engineering - San Francisco, CA, United States
    Duration: 8 Jun 201413 Jun 2014
    http://www.asmeconferences.org/OMAE2014/

    Conference

    Conference33rd International Conference on Ocean, Offshore and Arctic Engineering
    Country/TerritoryUnited States
    CitySan Francisco, CA
    Period08/06/201413/06/2014
    Internet address

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