Print Email Facebook Twitter Predicting the occurrence of the vortex ring state for floating offshore wind turbines Title Predicting the occurrence of the vortex ring state for floating offshore wind turbines Author Dong, J. (TU Delft Wind Energy) Viré, A.C. (TU Delft Wind Energy) Date 2020-09-22 Abstract The local aerodynamic loading on floating offshore wind turbines (FOWTs) is more complex than on bottom-fixed wind turbines due to the platform motions. In particular, the FOWT rotor may start to interact with its own wake and enter a so-called vortex ring state (VRS). However, it is still unclear when, and to what extent, the VRS may happen to floating offshore wind turbines. In this paper, we quantitatively predict the VRS using Wolkovitch's criterion during the operating conditions of different FOWTs simulated by FAST. The results show that the type of floating foundation has a significant influence on the aerodynamic performance of the rotor. Also, the probability of occurrence of VRS is bigger for the floating platforms that are more sensitive to wave excitations. To reference this document use: http://resolver.tudelft.nl/uuid:9497c1ab-dbbb-4ca2-ba4d-78ce58fe1cc9 DOI https://doi.org/10.1088/1742-6596/1618/5/052044 ISSN 1742-6588 Source Journal of Physics: Conference Series, 1618 (5) Event Science of Making Torque from Wind 2020, TORQUE 2020, 2020-09-28 → 2020-10-02, Online, Virtual, Online, Netherlands Part of collection Institutional Repository Document type journal article Rights © 2020 J. Dong, A.C. Viré Files PDF Dong_2020_J._Phys._Conf._ ... 052044.pdf 1.79 MB Close viewer /islandora/object/uuid:9497c1ab-dbbb-4ca2-ba4d-78ce58fe1cc9/datastream/OBJ/view