Articles | Volume 8, issue 9
Research article
12 Sep 2023
Research article |  | 12 Sep 2023

Towards smart blades for vertical axis wind turbines: different airfoil shapes and tip speed ratios

Mohammad Rasoul Tirandaz, Abdolrahim Rezaeiha, and Daniel Micallef

Related subject area

Thematic area: Fluid mechanics | Topic: Wind turbine aerodynamics
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Cited articles

Ajaj, R. M., Parancheerivilakkathil, M. S., Amoozgar, M., Friswell, M. I., and Cantwell, W. J.: Recent developments in the aeroelasticity of morphing aircraft, Prog. Aerosp. Sci., 120, 100682,, 2021. 
Amet, E., Maitre, T., Pellone, C., and Achard, J.-L.: 2D Numerical simulations of blade-vortex interaction in a Darrieus turbine, J. Fluids Eng., 131, 1–15,, 2009. 
Balduzzi, F., Bianchini, A., Ferrara, G., and Ferrari, L.: Dimensionless numbers for the assessment of mesh and timestep requirements in CFD simulations of Darrieus wind turbines, Energy, 97, 246–261,, 2016a. 
Balduzzi, F., Bianchini, A., Maleci, R., Ferrara, G., and Ferrari, L.: Critical issues in the CFD simulation of Darrieus wind turbines, Renew. Energy, 85, 419–435,, 2016b. 
Barbarino, S., Bilgen, O., Ajaj, R. M., Friswell, M. I., and Inman, D. J.: A Review of Morphing Aircraft, J. Intel. Mater. Syst. Struct., 22, 823–877,, 2011. 
Short summary
Vertical axis wind turbines experience a variation of torque and power throughout their rotation. Traditional non-morphing blades are intrinsically not able to respond to this variation, resulting in a turbine which has suboptimal performance. In principle, it is possible to have a morphing blade that adapts to the blade's rotation and changes its geometry in such a way as to optimise the performance of the turbine. This paper addresses the question of how such blade should morph as it rotates.
Final-revised paper