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

Publication: Research - peer-reviewConference article – Annual report year: 2016

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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)
Volume753
Number of pages11
ISSN1742-6596
DOIs
StatePublished - 2016
EventThe Science of Making Torque from Wind - Munich, Germany

Conference

ConferenceThe Science of Making Torque from Wind
Number6
CountryGermany
CityMunich
Period05/10/201607/10/2016
Internet address
CitationsWeb of Science® Times Cited: No match on DOI
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