Unsteady aerodynamics of offshore floating wind turbines using free vortex wake model

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Abstract

Among the offshore floating wind turbine software packs, the blade element momentum theory (BEM) and generalized dynamic wake (GDW) model are widely used. A free vortex wake model has been coupled to FAST v7 to do a comparative dynamic analysis between using the BEM theory and GDW method on offshore floating wind turbine. The verification test on the free-wake model has been performed according to the NREL VI experiment in steady and yaw conditions. To analyze the unsteady aerodynamics of floating wind turbine, the OC3 spar type wind turbine has been used to do simulations. The global performances on both the rotor and the platform and their interactions are shown and discussed.

Original languageEnglish
Title of host publicationProceedings of the 25th International Offshore and Polar Engineering Conference
EditorsJin S. Chung, Fabian Vorpahl, Sa Young Hong, Ted Kokkinis, Alan M. Wang
PublisherInternational Society of Offshore and Polar Engineers
Pages576-583
Number of pages8
Volume2015
ISBN (Print)9781880653890
Publication statusPublished - 2015
Event25th International Ocean and Polar Engineering Conference, ISOPE 2015 - Kona, Big Island, United States
Duration: 21 Jun 201526 Jun 2015

Conference

Conference25th International Ocean and Polar Engineering Conference, ISOPE 2015
CountryUnited States
CityKona, Big Island
Period21/06/1526/06/15

Keywords

  • coupled analysis
  • numerical simulation
  • offshore floating wind turbine
  • vortex model

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  • Cite this

    Qi, Q., & Barltrop, N. (2015). Unsteady aerodynamics of offshore floating wind turbines using free vortex wake model. In J. S. Chung, F. Vorpahl, S. Y. Hong, T. Kokkinis, & A. M. Wang (Eds.), Proceedings of the 25th International Offshore and Polar Engineering Conference (Vol. 2015, pp. 576-583). International Society of Offshore and Polar Engineers.