Aerodynamic Investigation of a Horizontal Axis Wind Turbine with Split Winglet Using Computational Fluid Dynamics
Wind energy is one of the fastest growing renewable energy sources, and the most developed energy extraction device that harnesses this energy is the Horizontal Axis Wind Turbine (HAWT). Increasing the efficiency of HAWTs is one important topic in current research with multiple aspects to look at su...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/18/4983 |
| _version_ | 1797552940627525632 |
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| author | Miguel Sumait Sy Binoe Eugenio Abuan Louis Angelo Macapili Danao |
| author_facet | Miguel Sumait Sy Binoe Eugenio Abuan Louis Angelo Macapili Danao |
| author_sort | Miguel Sumait Sy |
| collection | DOAJ |
| description | Wind energy is one of the fastest growing renewable energy sources, and the most developed energy extraction device that harnesses this energy is the Horizontal Axis Wind Turbine (HAWT). Increasing the efficiency of HAWTs is one important topic in current research with multiple aspects to look at such as blade design and rotor array optimization. This study looked at the effect of wingtip devices, a split winglet, in particular, to reduce the drag induced by the wind vortices at the blade tip, hence increasing performance. Split winglet implementation was done using computational fluid dynamics (CFD) on the National Renewable Energy Lab (NREL) Phase VI sequence H. In total, there are four (4) blade configurations that are simulated, the base NREL Phase VI sequence H blade, an extended version of the previous blade to equalize length of the blades, the base blade with a winglet and the base blade with split winglet. Results at wind speeds of 7 m/s to 15 m/s show that adding a winglet increased the power generation, on an average, by 1.23%, whereas adding a split winglet increased it by 2.53% in comparison to the extended blade. The study also shows that the increase is achieved by reducing the drag at the blade tip and because of the fact that the winglet and split winglet generating lift themselves. This, however, comes at a cost, i.e., an increase in thrust of 0.83% and 2.05% for the blades with winglet and split winglet, respectively, in comparison to the extended blade. |
| first_indexed | 2024-03-10T16:08:17Z |
| format | Article |
| id | doaj.art-ff5ed7c59da14d2ab30545de8a3857bd |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T16:08:17Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-ff5ed7c59da14d2ab30545de8a3857bd2023-11-20T14:43:18ZengMDPI AGEnergies1996-10732020-09-011318498310.3390/en13184983Aerodynamic Investigation of a Horizontal Axis Wind Turbine with Split Winglet Using Computational Fluid DynamicsMiguel Sumait Sy0Binoe Eugenio Abuan1Louis Angelo Macapili Danao2Energy Engineering Graduate Program, University of the Philippines, Diliman 1101, PhilippinesDepartment of Mechanical Engineering, University of the Philippines, Diliman 1101, PhilippinesDepartment of Mechanical Engineering, University of the Philippines, Diliman 1101, PhilippinesWind energy is one of the fastest growing renewable energy sources, and the most developed energy extraction device that harnesses this energy is the Horizontal Axis Wind Turbine (HAWT). Increasing the efficiency of HAWTs is one important topic in current research with multiple aspects to look at such as blade design and rotor array optimization. This study looked at the effect of wingtip devices, a split winglet, in particular, to reduce the drag induced by the wind vortices at the blade tip, hence increasing performance. Split winglet implementation was done using computational fluid dynamics (CFD) on the National Renewable Energy Lab (NREL) Phase VI sequence H. In total, there are four (4) blade configurations that are simulated, the base NREL Phase VI sequence H blade, an extended version of the previous blade to equalize length of the blades, the base blade with a winglet and the base blade with split winglet. Results at wind speeds of 7 m/s to 15 m/s show that adding a winglet increased the power generation, on an average, by 1.23%, whereas adding a split winglet increased it by 2.53% in comparison to the extended blade. The study also shows that the increase is achieved by reducing the drag at the blade tip and because of the fact that the winglet and split winglet generating lift themselves. This, however, comes at a cost, i.e., an increase in thrust of 0.83% and 2.05% for the blades with winglet and split winglet, respectively, in comparison to the extended blade.https://www.mdpi.com/1996-1073/13/18/4983wingletcomputational fluid dynamics (CFD), wind energyrenewable energyrotor bladetip vortices |
| spellingShingle | Miguel Sumait Sy Binoe Eugenio Abuan Louis Angelo Macapili Danao Aerodynamic Investigation of a Horizontal Axis Wind Turbine with Split Winglet Using Computational Fluid Dynamics Energies winglet computational fluid dynamics (CFD), wind energy renewable energy rotor blade tip vortices |
| title | Aerodynamic Investigation of a Horizontal Axis Wind Turbine with Split Winglet Using Computational Fluid Dynamics |
| title_full | Aerodynamic Investigation of a Horizontal Axis Wind Turbine with Split Winglet Using Computational Fluid Dynamics |
| title_fullStr | Aerodynamic Investigation of a Horizontal Axis Wind Turbine with Split Winglet Using Computational Fluid Dynamics |
| title_full_unstemmed | Aerodynamic Investigation of a Horizontal Axis Wind Turbine with Split Winglet Using Computational Fluid Dynamics |
| title_short | Aerodynamic Investigation of a Horizontal Axis Wind Turbine with Split Winglet Using Computational Fluid Dynamics |
| title_sort | aerodynamic investigation of a horizontal axis wind turbine with split winglet using computational fluid dynamics |
| topic | winglet computational fluid dynamics (CFD), wind energy renewable energy rotor blade tip vortices |
| url | https://www.mdpi.com/1996-1073/13/18/4983 |
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