France – Mardi 22/10/2019 – energiesdelamer.eu. Ancre – Colloque des Doctorants 2ème intervenant : Vincent Arnal
Despite significant progress in the validation of hydro-servo-aero-elastic codes used for floating wind turbine modeling, testing new floating wind turbine concepts by dedicated wave tank experiments is still a required step for the validation and the calibration of the numerical models.
However, reproducing at model scale both representative hydrodynamic and aerodynamic loads acting on floating wind turbines is quite challenging because of conflicts between Froude and Reynolds scaling laws as well as implementation of sophisticated wind turbine control laws.
Different experimental methodologies have been developed for the emulation of rotor response during wave tank testing. Recently, hybrid physical – numerical modelling coupled in real time have recently been developed to overtake Froude-Reynolds scaling incompatibilities.
The aim of the PhD work – part of the SOFTWIND project – is to design, characterize and test this hybrid approach for wave tank testing of floating wind turbines. A set of actuators is located at the top of the wind turbine tower for emulating loads acting on the rotor.
The rotor response is computed in real-time with a full scale simulation of a floating wind turbine using a slightly modified version of NREL’s OpenFAST code to get representative rotor aerodynamic and inertial loads.
Firstly, the presentation will highlight the challenges for the design of a hybrid wave tank testing system.
Secondly, the frequencies of interest for the rotor loads of a floating wind turbine will be presented.
Finally, the achieved experiments and the on-going experiments will be briefly presented.
Agenda des événements sélectionnés par energiesdelamer.eu : Journée Doctoriale sur les thématiques du GP5 de l’ANCRE 23/10/2019
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