Effect of Surface Roughness on Aerodynamic Performance of Symmetric NACA 0012
Roughness in a wind turbine blade surface has a large effect on its aerodynamic performance. The current research concentrates on the various effects of the surface roughness upon the aerodynamics of a symmetrical NACA 0012 airfoil. In this respect, six kinds of different grit sizes of sandpaper we...
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| Language: | English |
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Tikrit University
2025-02-01
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| Series: | Tikrit Journal of Pure Science |
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| Online Access: | https://tjpsj.org/index.php/tjps/article/view/1715 |
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| author | Hussein K. Mohammad |
| author_facet | Hussein K. Mohammad |
| author_sort | Hussein K. Mohammad |
| collection | DOAJ |
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Roughness in a wind turbine blade surface has a large effect on its aerodynamic performance. The current research concentrates on the various effects of the surface roughness upon the aerodynamics of a symmetrical NACA 0012 airfoil. In this respect, six kinds of different grit sizes of sandpaper were used: P500, P1000, P1500, P2000, P2500, and P3000, to provide a range of roughened surfaces for the study. In this experiment, the lift and drag coefficients were measured at three angles of attack (5, 10, and 15 degrees), and at three flow speeds of (5, 10, and 15 m/s). It was realized that an increase in surface roughness significantly impairs the aerodynamic efficiency, depicted by a reduction in the lift coefficient and an augmenting coefficient of drag. These changes lead to a reduced lift-to-drag ratio and reflect the importance of smoothness of the surface of wind turbine blades to maintain optimal performance. Comparisons with previous studies corroborate these findings, proving that surface roughness generates increased turbulence and skin friction, causing deterrents in boundary layer development around the airfoil.
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| format | Article |
| id | doaj-art-3a8520f11ec14674ac53ab2ffd88ca7d |
| institution | Kabale University |
| issn | 1813-1662 2415-1726 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Tikrit University |
| record_format | Article |
| series | Tikrit Journal of Pure Science |
| spelling | doaj-art-3a8520f11ec14674ac53ab2ffd88ca7d2025-08-20T03:28:59ZengTikrit UniversityTikrit Journal of Pure Science1813-16622415-17262025-02-0130110.25130/tjps.v30i1.1715 Effect of Surface Roughness on Aerodynamic Performance of Symmetric NACA 0012 Hussein K. Mohammad0Department of Physics, College of Science University of Tikrit, Tikrit, Iraq Roughness in a wind turbine blade surface has a large effect on its aerodynamic performance. The current research concentrates on the various effects of the surface roughness upon the aerodynamics of a symmetrical NACA 0012 airfoil. In this respect, six kinds of different grit sizes of sandpaper were used: P500, P1000, P1500, P2000, P2500, and P3000, to provide a range of roughened surfaces for the study. In this experiment, the lift and drag coefficients were measured at three angles of attack (5, 10, and 15 degrees), and at three flow speeds of (5, 10, and 15 m/s). It was realized that an increase in surface roughness significantly impairs the aerodynamic efficiency, depicted by a reduction in the lift coefficient and an augmenting coefficient of drag. These changes lead to a reduced lift-to-drag ratio and reflect the importance of smoothness of the surface of wind turbine blades to maintain optimal performance. Comparisons with previous studies corroborate these findings, proving that surface roughness generates increased turbulence and skin friction, causing deterrents in boundary layer development around the airfoil. https://tjpsj.org/index.php/tjps/article/view/1715Surface roughness Aerodynamic performance NACA0012 airfoil Lift coefficientDrag coefficient |
| spellingShingle | Hussein K. Mohammad Effect of Surface Roughness on Aerodynamic Performance of Symmetric NACA 0012 Tikrit Journal of Pure Science Surface roughness Aerodynamic performance NACA0012 airfoil Lift coefficient Drag coefficient |
| title | Effect of Surface Roughness on Aerodynamic Performance of Symmetric NACA 0012 |
| title_full | Effect of Surface Roughness on Aerodynamic Performance of Symmetric NACA 0012 |
| title_fullStr | Effect of Surface Roughness on Aerodynamic Performance of Symmetric NACA 0012 |
| title_full_unstemmed | Effect of Surface Roughness on Aerodynamic Performance of Symmetric NACA 0012 |
| title_short | Effect of Surface Roughness on Aerodynamic Performance of Symmetric NACA 0012 |
| title_sort | effect of surface roughness on aerodynamic performance of symmetric naca 0012 |
| topic | Surface roughness Aerodynamic performance NACA0012 airfoil Lift coefficient Drag coefficient |
| url | https://tjpsj.org/index.php/tjps/article/view/1715 |
| work_keys_str_mv | AT husseinkmohammad effectofsurfaceroughnessonaerodynamicperformanceofsymmetricnaca0012 |