Comparison of aerodynamic models for Vertical Axis Wind Turbines

Ferreira, Carlos; Madsen, Helge Aagaard; Barone, Matthew Franklin; Roscher, Björn; Deglaire, Paul; Arduin, I.

doi:10.1088/1742-6596/524/1/012125

Cited by 83 publications

(58 citation statements)

References 3 publications

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“…Despite this, the difference in power coefficient predicted by the AC, U2DiVA, and PW2DiVA remains small. These findings are in agreement with previous studies of Ferreira et al 30 Note that U2DiVA does take into account the dynamic effects while the other codes do not. The discontinuities in the vortex-model results (mainly downstream) are due to the interaction of the blades with the wake.…”

Section: Simulation Of the 2d Vawtsupporting

confidence: 93%

Airfoil optimisation for vertical‐axis wind turbines with variable pitch

2019

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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.

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Section: Simulation Of the 2d Vawtsupporting

confidence: 93%

Airfoil optimisation for vertical‐axis wind turbines with variable pitch

2019

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“…However, some discrepancies appear, for instance the vortex method does not show the bump around 270 o . Few aerodynamic models for VAWTs, such as the Actuator Cylinder flow model, predict this bump (see Ferreira et al, [12]). In addition, the stall model is the only one to reproduce the high increase of tangential forces at downwind positions.…”

Section: Coupled Lbm/alm Vertical Axis Wind Turbinementioning

confidence: 99%

Actuator-Line Model in a Lattice Boltzmann Framework for Wind Turbine Simulations

Rullaud

Blondel

Cathelain

2018

J. Phys.: Conf. Ser.

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“…Shi et al [78] used a 2D vortex type free wake aerodynamic model and solved a Poisson equation for the 'weak induced' pressure field to overcome the potential function for the wake vorticity field. A comparison between the Momentum, Vortex and Panel methods has been made by the Ferreira et al [79] in 2014. He claimed that the streamtube model deviate significantly from the other models, and results showed a good agreement between the Vortex and Panel methods.…”

Section: Direct Design Approachmentioning

confidence: 99%