Experimental Analysis of Oscillatory Vortex Generators in Wind Turbine Blade

Hector G. Parra (), Hernan D. Ceron, William Gomez and Elvis E. Gaona
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Hector G. Parra: Faculty of Engineering, Universidad Distrital Francisco José de Caldas, Bogotá 110231, Colombia
Hernan D. Ceron: Escola de Engenharia de São Carlos, Universidade de São Paulo, São Carlos 13566-590, Brazil
William Gomez: Ingeniería Mecánica, Universidad Militar Nueva Granada, Bogotá 110111, Colombia
Elvis E. Gaona: Faculty of Engineering, Universidad Distrital Francisco José de Caldas, Bogotá 110231, Colombia

Energies, 2023, vol. 16, issue 11, 1-14

Abstract: Vortex generators are devices that modify the wind behavior near the surface of wind turbine blades. Their use allows the boundary layer shedding transition zone to be varied. Bio-inspired design has been used to improve the efficiency of aerodynamic and hydrodynamic systems by creating devices that use shapes present in animals and plants. In this work, an experimental methodology is proposed to study the effect of bio-inspired vortex generators and their effect on the structural vibration of a blade. In addition, the wind wake generated by the blade with oscillating vortex generators at different oscillation frequencies is analyzed by means of a hot wire anemometer, obtaining appreciable vibration reduction results in the measured 3D acceleration signals for wind velocities between 10 and 15 m/s. Values of the spectral components of the wake velocity measured at higher tunnel wind velocities increase. Spectral variance is reduced at higher tunnel wind velocities. The system analyzed in this paper can contribute in the future to the construction of actuators for vibration compensation systems in wind turbines.

Keywords: wind turbine; peregrine falcon; bioinspired; wind tunnel; active vortex generators (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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