Design optimization of a blunt trailing-edge airfoil for wind turbines under rime ice conditions
A new optimization method is developed for the design of a blunt trailing-edge airfoil for wind turbines under rime ice conditions. The parametric representation of the airfoil is given using the profile integration theory and B-spline function. The rime ice shape from wind tunnel tests is fitted us...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-02-01
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| Series: | Alexandria Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016822006482 |
| _version_ | 1811163520195100672 |
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| author | Xu Zhang Zheng Wang Wei Li Zituo Wang Mateusz Bocian |
| author_facet | Xu Zhang Zheng Wang Wei Li Zituo Wang Mateusz Bocian |
| author_sort | Xu Zhang |
| collection | DOAJ |
| description | A new optimization method is developed for the design of a blunt trailing-edge airfoil for wind turbines under rime ice conditions. The parametric representation of the airfoil is given using the profile integration theory and B-spline function. The rime ice shape from wind tunnel tests is fitted using a linear interpolation algorithm with equidistant and equiangular steps to preserve the same number of ice shape feature points. The blunt trailing-edge thickness and distribution ratio on the upper side of the middle arc are included in the design variables. The optimizer, based on the Bare-Bones Multi-Objective Particle Swarm Optimization (BB-MOPSO) algorithm integrated with ICEM-CFD and FLUENT software, seeks the solutions maximizing the lift coefficient and lift-drag ratio. A new airfoil NACA0012BT (with BT denoting the blunt trailing-edge) with the trailing-edge thickness of 2.2004 %c (with c denoting the chord length) and distribution ratio of 1:55.8482 is obtained, and the lift and drag coefficients, lift-drag ratios, pressure distributions, and flow characteristics are investigated using the Computational Fluid Dynamics (CFD) method. Significant improvements of the NACA0012 airfoil design are achieved in this process, confirming that the developed method constitutes a valuable tool for designing and optimizing the wind turbine airfoil operating in icing conditions. |
| first_indexed | 2024-04-10T15:06:31Z |
| format | Article |
| id | doaj.art-8bbefb8e8d6b4fe39273a16217d41b34 |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-04-10T15:06:31Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-8bbefb8e8d6b4fe39273a16217d41b342023-02-15T04:27:00ZengElsevierAlexandria Engineering Journal1110-01682023-02-0165887896Design optimization of a blunt trailing-edge airfoil for wind turbines under rime ice conditionsXu Zhang0Zheng Wang1Wei Li2Zituo Wang3Mateusz Bocian4Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology, Tiangong University, Tianjin 300387, China; Corresponding author.Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology, Tiangong University, Tianjin 300387, ChinaSchool of Energy and Safety Engineering, Tianjin Chengjian University, Tianjin 300384, ChinaTianjin Key Laboratory of Advanced Mechatronics Equipment Technology, Tiangong University, Tianjin 300387, ChinaSchool of Engineering, University of Leicester, Leicester LE1 7RH, UKA new optimization method is developed for the design of a blunt trailing-edge airfoil for wind turbines under rime ice conditions. The parametric representation of the airfoil is given using the profile integration theory and B-spline function. The rime ice shape from wind tunnel tests is fitted using a linear interpolation algorithm with equidistant and equiangular steps to preserve the same number of ice shape feature points. The blunt trailing-edge thickness and distribution ratio on the upper side of the middle arc are included in the design variables. The optimizer, based on the Bare-Bones Multi-Objective Particle Swarm Optimization (BB-MOPSO) algorithm integrated with ICEM-CFD and FLUENT software, seeks the solutions maximizing the lift coefficient and lift-drag ratio. A new airfoil NACA0012BT (with BT denoting the blunt trailing-edge) with the trailing-edge thickness of 2.2004 %c (with c denoting the chord length) and distribution ratio of 1:55.8482 is obtained, and the lift and drag coefficients, lift-drag ratios, pressure distributions, and flow characteristics are investigated using the Computational Fluid Dynamics (CFD) method. Significant improvements of the NACA0012 airfoil design are achieved in this process, confirming that the developed method constitutes a valuable tool for designing and optimizing the wind turbine airfoil operating in icing conditions.http://www.sciencedirect.com/science/article/pii/S1110016822006482Design optimizationBlunt trailing-edge airfoilWind turbineRime ice |
| spellingShingle | Xu Zhang Zheng Wang Wei Li Zituo Wang Mateusz Bocian Design optimization of a blunt trailing-edge airfoil for wind turbines under rime ice conditions Alexandria Engineering Journal Design optimization Blunt trailing-edge airfoil Wind turbine Rime ice |
| title | Design optimization of a blunt trailing-edge airfoil for wind turbines under rime ice conditions |
| title_full | Design optimization of a blunt trailing-edge airfoil for wind turbines under rime ice conditions |
| title_fullStr | Design optimization of a blunt trailing-edge airfoil for wind turbines under rime ice conditions |
| title_full_unstemmed | Design optimization of a blunt trailing-edge airfoil for wind turbines under rime ice conditions |
| title_short | Design optimization of a blunt trailing-edge airfoil for wind turbines under rime ice conditions |
| title_sort | design optimization of a blunt trailing edge airfoil for wind turbines under rime ice conditions |
| topic | Design optimization Blunt trailing-edge airfoil Wind turbine Rime ice |
| url | http://www.sciencedirect.com/science/article/pii/S1110016822006482 |
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