Experimental and numerical study of a 10MW TLP wind turbine in waves and wind

Antonio Manuel Pegalajar Jurado, Anders Mandrup Hansen, Robert Laugesen, Robert Flemming Mikkelsen, Michael Borg, Taeseong Kim, Nicolai F. Heilskov, Henrik Bredmose

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This paper presents tests on a 1:60 version of the DTU 10MW wind turbine mounted on a tension leg platform and their numerical reproduction. Both the experimental setup and the numerical model are Froude-scaled, and the dynamic response of the floating wind turbine to wind and waves is compared in terms of motion in the six degrees of freedom, nacelle acceleration and mooring line tension. The numerical model is implemented in the aero-elastic code Flex5, featuring the unsteady BEM method and the Morison equation for the modelling of aerodynamics and hydrodynamics, respectively. It was calibrated with the tests by matching key system features, namely the steady thrust curve and the decay tests in water. The calibrated model is used to reproduce the wind-wave climates in the laboratory, including regular and irregular waves, with and without wind. The model predictions are compared to the measured data, and a good agreement is found for surge and heave, while some discrepancies are observed for pitch, nacelle acceleration and line tension. The addition of wind generally improves the agreement with test results. The aerodynamic damping is identified in both tests and simulations. Finally, the sources of the discrepancies are discussed and some improvements in the numerical model are suggested in order to obtain a better agreement with the experiments.
Original languageEnglish
Article number092007
Book seriesJournal of Physics: Conference Series (Online)
Number of pages11
Publication statusPublished - 2016
EventThe Science of Making Torque from Wind 2016 - Technische Universität München (TUM), Munich, Germany
Duration: 5 Oct 20167 Oct 2016
Conference number: 6


ConferenceThe Science of Making Torque from Wind 2016
LocationTechnische Universität München (TUM)
Internet address

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