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de Tavernier, D.A.M. (author), Simao Ferreira, C. (author), van Bussel, G.J.W. (author)
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...
journal article 2019
document
de Tavernier, D.A.M. (author), Simao Ferreira, C. (author)
In this paper, the actuator-in-actuator cylinder (AC-squared) model is presented. This model is an extension of the original actuator cylinder model of Madsen and is capable of modelling the effect of a two concentric actuation surfaces in 2D. The induced velocity at every point in the 2D field is affected by the force field acting on the two...
journal article 2019
document
de Tavernier, D.A.M. (author), Simao Ferreira, C. (author), Li, A. (author), Paulsen, U. S. (author), Aagaard Madsen, H (author)
Vertical-axis wind turbines (VAWTs) in double-rotor configuration, meaning two rotors in close proximity, have the ability to enhance the power performance. In this study, we work towards the understanding of vertical-axis wind turbines in double-rotor configuration. Numerical simulations are performed to gain insight in the physics behind...
journal article 2018
document
Baldacchino, D. (author), Simao Ferreira, C. (author), de Tavernier, D.A.M. (author), Timmer, W.A. (author), van Bussel, G.J.W. (author)
Passive vane-type vortex generators (VGs) are commonly used on wind turbine blades to mitigate the effects of flow separation. However, significant uncertainty surrounds VG design guidelines. Understanding the influence of VG parameters on airfoil performance requires a systematic approach targeting wind energy-specific airfoils. Thus, the 30...
journal article 2018
document
de Tavernier, D.A.M. (author), Baldacchino, D. (author), Simao Ferreira, C. (author)
To assess and optimize vortex generators (VGs) for flow separation control, the effect of these devices should be modelled in a cost and time efficient way. Therefore, it is of interest to extend integral boundary layer models to analyse the effect of VGs on airfoil performance. In this work, the turbulent boundary layer formulation is...
journal article 2018
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