Experimental Analysis of Bio-Inspired Vortex Generators on a Blade with S822 Airfoil
Vortex generators are used in aircraft wings and wind turbine blades. These devices allow them to maintain a stable turbulent behavior in the wind wake. Vortex generators, or VGs, improve the transition from laminar to turbulent boundary layer regime, avoiding abrupt shedding. HAWT wind turbines hav...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/16/12/4538 |
| _version_ | 1827737588910260224 |
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| author | Hector G. Parra Hernan D. Ceron William Gomez Elvis E. Gaona |
| author_facet | Hector G. Parra Hernan D. Ceron William Gomez Elvis E. Gaona |
| author_sort | Hector G. Parra |
| collection | DOAJ |
| description | Vortex generators are used in aircraft wings and wind turbine blades. These devices allow them to maintain a stable turbulent behavior in the wind wake. Vortex generators, or VGs, improve the transition from laminar to turbulent boundary layer regime, avoiding abrupt shedding. HAWT wind turbines have high rotational velocity. Currently, HAWT turbines are being redesigned with fixed vortex generators, achieving higher energy production. This paper presents a wind tunnel analysis of a fixed-wire blade with S822 airfoil and active VGs bio-inspired by the flight-stabilizing feathers of the peregrine falcon. Vibrations measured on the blade show a reduction in intensity at wind velocities close to 15 m/s. The measured wake velocities show fluctuations at higher tunnel wind velocities. An FFT spectral analysis of the wind wake velocities showed differences between the spectral components. When activating the VGs in oscillation at a constant frequency, a reduction of the vibrations on the blade was observed for wind velocities around 20 m/s. |
| first_indexed | 2024-03-11T02:31:51Z |
| format | Article |
| id | doaj.art-8f17c30bb6d34a468d2fdb023a369d7d |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T02:31:51Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-8f17c30bb6d34a468d2fdb023a369d7d2023-11-18T10:10:44ZengMDPI AGEnergies1996-10732023-06-011612453810.3390/en16124538Experimental Analysis of Bio-Inspired Vortex Generators on a Blade with S822 AirfoilHector G. Parra0Hernan D. Ceron1William Gomez2Elvis E. Gaona3Faculty of Engineering, Universidad Distrital Francisco José de Caldas, Bogotá 110231, ColombiaEscola de Engenharia de São Carlos, Universidade de São Paulo, São Carlos 13566590, BrazilFaculty of Engineering, Universidad Militar Nueva Granada, Bogotá 110231, ColombiaFaculty of Engineering, Universidad Distrital Francisco José de Caldas, Bogotá 110231, ColombiaVortex generators are used in aircraft wings and wind turbine blades. These devices allow them to maintain a stable turbulent behavior in the wind wake. Vortex generators, or VGs, improve the transition from laminar to turbulent boundary layer regime, avoiding abrupt shedding. HAWT wind turbines have high rotational velocity. Currently, HAWT turbines are being redesigned with fixed vortex generators, achieving higher energy production. This paper presents a wind tunnel analysis of a fixed-wire blade with S822 airfoil and active VGs bio-inspired by the flight-stabilizing feathers of the peregrine falcon. Vibrations measured on the blade show a reduction in intensity at wind velocities close to 15 m/s. The measured wake velocities show fluctuations at higher tunnel wind velocities. An FFT spectral analysis of the wind wake velocities showed differences between the spectral components. When activating the VGs in oscillation at a constant frequency, a reduction of the vibrations on the blade was observed for wind velocities around 20 m/s.https://www.mdpi.com/1996-1073/16/12/4538S822vortex generatorsbio-inspiredwind tunnelvibrationCFD |
| spellingShingle | Hector G. Parra Hernan D. Ceron William Gomez Elvis E. Gaona Experimental Analysis of Bio-Inspired Vortex Generators on a Blade with S822 Airfoil Energies S822 vortex generators bio-inspired wind tunnel vibration CFD |
| title | Experimental Analysis of Bio-Inspired Vortex Generators on a Blade with S822 Airfoil |
| title_full | Experimental Analysis of Bio-Inspired Vortex Generators on a Blade with S822 Airfoil |
| title_fullStr | Experimental Analysis of Bio-Inspired Vortex Generators on a Blade with S822 Airfoil |
| title_full_unstemmed | Experimental Analysis of Bio-Inspired Vortex Generators on a Blade with S822 Airfoil |
| title_short | Experimental Analysis of Bio-Inspired Vortex Generators on a Blade with S822 Airfoil |
| title_sort | experimental analysis of bio inspired vortex generators on a blade with s822 airfoil |
| topic | S822 vortex generators bio-inspired wind tunnel vibration CFD |
| url | https://www.mdpi.com/1996-1073/16/12/4538 |
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