Influence of Turbulence Model for Wind Turbine Simulation in Low Reynolds Number
In designing a wind turbine, the validation of the mathematical model’s result is normally carried out by comparison with wind tunnel experiment data. However, the Reynolds number of the wind tunnel experiment is low, and the flow does not match fully developed turbulence on the leading edge of a wi...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2016/8072078 |
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| author | Masami Suzuki |
| author_facet | Masami Suzuki |
| author_sort | Masami Suzuki |
| collection | DOAJ |
| description | In designing a wind turbine, the validation of the mathematical model’s result is normally carried out by comparison with wind tunnel experiment data. However, the Reynolds number of the wind tunnel experiment is low, and the flow does not match fully developed turbulence on the leading edge of a wind turbine blade. Therefore, the transition area from laminar to turbulent flow becomes wide under these conditions, and the separation point is difficult to predict using turbulence models. The prediction precision decreases dramatically when working with tip speed ratios less than the maximum power point. This study carries out a steadiness calculation with turbulence model and an unsteadiness calculation with laminar model for a three-blade horizontal axis wind turbine. The validation of the calculations is performed by comparing with experimental results. The power coefficients calculated without turbulence models are in agreement with the experimental data for a tip speed ratio greater than 5. |
| format | Article |
| id | doaj-art-4b06c45f667a4827935ceeb416606355 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-4b06c45f667a4827935ceeb4166063552025-02-03T05:46:21ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342016-01-01201610.1155/2016/80720788072078Influence of Turbulence Model for Wind Turbine Simulation in Low Reynolds NumberMasami Suzuki0Department of Mechanical Systems, University of the Ryukyus, Okinawa, JapanIn designing a wind turbine, the validation of the mathematical model’s result is normally carried out by comparison with wind tunnel experiment data. However, the Reynolds number of the wind tunnel experiment is low, and the flow does not match fully developed turbulence on the leading edge of a wind turbine blade. Therefore, the transition area from laminar to turbulent flow becomes wide under these conditions, and the separation point is difficult to predict using turbulence models. The prediction precision decreases dramatically when working with tip speed ratios less than the maximum power point. This study carries out a steadiness calculation with turbulence model and an unsteadiness calculation with laminar model for a three-blade horizontal axis wind turbine. The validation of the calculations is performed by comparing with experimental results. The power coefficients calculated without turbulence models are in agreement with the experimental data for a tip speed ratio greater than 5.http://dx.doi.org/10.1155/2016/8072078 |
| spellingShingle | Masami Suzuki Influence of Turbulence Model for Wind Turbine Simulation in Low Reynolds Number International Journal of Rotating Machinery |
| title | Influence of Turbulence Model for Wind Turbine Simulation in Low Reynolds Number |
| title_full | Influence of Turbulence Model for Wind Turbine Simulation in Low Reynolds Number |
| title_fullStr | Influence of Turbulence Model for Wind Turbine Simulation in Low Reynolds Number |
| title_full_unstemmed | Influence of Turbulence Model for Wind Turbine Simulation in Low Reynolds Number |
| title_short | Influence of Turbulence Model for Wind Turbine Simulation in Low Reynolds Number |
| title_sort | influence of turbulence model for wind turbine simulation in low reynolds number |
| url | http://dx.doi.org/10.1155/2016/8072078 |
| work_keys_str_mv | AT masamisuzuki influenceofturbulencemodelforwindturbinesimulationinlowreynoldsnumber |