Print Email Facebook Twitter Airfoil optimisation for vertical-axis wind turbines with variable pitch Title Airfoil optimisation for vertical-axis wind turbines with variable pitch Author De Tavernier, D. (TU Delft Wind Energy) Ferreira, Carlos (TU Delft Wind Energy) van Bussel, G.J.W. (TU Delft Wind Energy) Date 2019-04-01 Abstract To advance the design of a multimegawatt vertical-axis wind turbine (VAWT), application-specific airfoils need to be developed. In this research, airfoils are tailored for a VAWT with variable pitch. A genetic algorithm is used to optimise the airfoil shape considering a balance between the aerodynamic and structural performance of airfoils. At rotor scale, the aerodynamic objective aims to create the required optimal loading while minimising losses. The structural objective focusses on maximising the bending stiffness. Three airfoils from the Pareto front are selected and analysed using the actuator cylinder model and a prescribed-wake vortex code. The optimal pitch schedule is determined, and the loadings and power performance are studied for different tip-speed ratios and solidities. The comparison of the optimised airfoils with similar airfoils from the first generation shows a significant improvement in performance, and this proves the necessity to properly select the airfoil shape. Subject airfoil optimisationoptimal loadingvariable pitchvertical-axis wind turbine (VAWT) To reference this document use: http://resolver.tudelft.nl/uuid:8487075a-5070-4a0d-b655-8ead0951eb07 DOI https://doi.org/10.1002/we.2306 ISSN 1095-4244 Source Wind Energy, 22 (4), 547-562 Part of collection Institutional Repository Document type journal article Rights © 2019 D. De Tavernier, Carlos Ferreira, G.J.W. van Bussel Files PDF Tavernier_et_al_2019_Wind ... Energy.pdf 2.09 MB Close viewer /islandora/object/uuid:8487075a-5070-4a0d-b655-8ead0951eb07/datastream/OBJ/view