3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine
Three-dimensional numerical simulations have been performed to analyze the aerodynamic characteristics of a straight-bladed NACA0021 vertical axis wind turbine (VAWT). The unsteady flow CFD simulation was validated with the wind tunnel experiment data available in the literature. Sliding mesh method...
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Elsevier
2018
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| Online Access: | http://eprints.um.edu.my/20366/ https://doi.org/10.1016/j.renene.2018.05.085 |
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| author | Wong, Kok Hoe Chong, Wen Tong Poh, Sin Chew Shiah, Yui Chuin Sukiman, Nazatul Liana Wang, Chin Tsan |
| author_facet | Wong, Kok Hoe Chong, Wen Tong Poh, Sin Chew Shiah, Yui Chuin Sukiman, Nazatul Liana Wang, Chin Tsan |
| author_sort | Wong, Kok Hoe |
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| collection | Institutional Repository |
| content_provider | Universiti Malaya |
| content_source | UM Research Repository |
| continent | Asia |
| country | Malaysia |
| description | Three-dimensional numerical simulations have been performed to analyze the aerodynamic characteristics of a straight-bladed NACA0021 vertical axis wind turbine (VAWT). The unsteady flow CFD simulation was validated with the wind tunnel experiment data available in the literature. Sliding mesh method with the SST k-ω turbulence model was employed to simulate the rotational motion of the VAWT using ANSYS Fluent. The study showed a good agreement between the simulation and the wind tunnel testing. Further simulations were carried out to study the effects of a flat plate deflector being placed at the upwind of the VAWT by varying a few parameters including the position, the inclination angle and the length of the flat plate deflector. The simulations showed that the augmented flow occurred at the near wake region where the flow was accelerated and deflected by the deflector before impinging with the turbine; hence the coefficient of power (CP) of the VAWT improved significantly. However, the performance of the VAWT was highly dependent on the position of the deflector. From the simulation results, with the optimum parameters, the cycle-averaged coefficient of torque was increased about 47.10% higher compared to the VAWT without the deflector. |
| format | Article |
| id | my.um.eprints-20366 |
| institution | Universiti Malaya |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | eprints |
| spelling | my.um.eprints-203662019-02-18T04:23:52Z http://eprints.um.edu.my/20366/ 3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine Wong, Kok Hoe Chong, Wen Tong Poh, Sin Chew Shiah, Yui Chuin Sukiman, Nazatul Liana Wang, Chin Tsan TJ Mechanical engineering and machinery Three-dimensional numerical simulations have been performed to analyze the aerodynamic characteristics of a straight-bladed NACA0021 vertical axis wind turbine (VAWT). The unsteady flow CFD simulation was validated with the wind tunnel experiment data available in the literature. Sliding mesh method with the SST k-ω turbulence model was employed to simulate the rotational motion of the VAWT using ANSYS Fluent. The study showed a good agreement between the simulation and the wind tunnel testing. Further simulations were carried out to study the effects of a flat plate deflector being placed at the upwind of the VAWT by varying a few parameters including the position, the inclination angle and the length of the flat plate deflector. The simulations showed that the augmented flow occurred at the near wake region where the flow was accelerated and deflected by the deflector before impinging with the turbine; hence the coefficient of power (CP) of the VAWT improved significantly. However, the performance of the VAWT was highly dependent on the position of the deflector. From the simulation results, with the optimum parameters, the cycle-averaged coefficient of torque was increased about 47.10% higher compared to the VAWT without the deflector. Elsevier 2018 Article PeerReviewed Wong, Kok Hoe and Chong, Wen Tong and Poh, Sin Chew and Shiah, Yui Chuin and Sukiman, Nazatul Liana and Wang, Chin Tsan (2018) 3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine. Renewable Energy, 129 (Part A). pp. 32-55. ISSN 0960-1481, DOI https://doi.org/10.1016/j.renene.2018.05.085 <https://doi.org/10.1016/j.renene.2018.05.085>. https://doi.org/10.1016/j.renene.2018.05.085 doi:10.1016/j.renene.2018.05.085 |
| spellingShingle | TJ Mechanical engineering and machinery Wong, Kok Hoe Chong, Wen Tong Poh, Sin Chew Shiah, Yui Chuin Sukiman, Nazatul Liana Wang, Chin Tsan 3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine |
| title | 3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine |
| title_full | 3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine |
| title_fullStr | 3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine |
| title_full_unstemmed | 3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine |
| title_short | 3D CFD simulation and parametric study of a flat plate deflector for vertical axis wind turbine |
| title_sort | 3d cfd simulation and parametric study of a flat plate deflector for vertical axis wind turbine |
| topic | TJ Mechanical engineering and machinery |
| url | http://eprints.um.edu.my/20366/ https://doi.org/10.1016/j.renene.2018.05.085 |
| url_provider | http://eprints.um.edu.my/ |