A low order model for vertical axis wind turbines
A new computational model for initial sizing and performance prediction of vertical axis wind turbines is presented. The model uses a 2D hybrid dynamic vortex and blade element momentum approach. Each airfoil is modeled as a single vortex of time varying strength with an analytical model for the i...
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| Format: | Article |
| Language: | en_US |
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American Institute of Aeronautics and Astronautics
2010
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| Online Access: | http://hdl.handle.net/1721.1/59430 https://orcid.org/0000-0002-3912-1753 https://orcid.org/0000-0002-8556-685X |
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| author | Asher, Isaac M. Drela, Mark Peraire, Jaime |
| author2 | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics |
| author_facet | Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Asher, Isaac M. Drela, Mark Peraire, Jaime |
| author_sort | Asher, Isaac M. |
| collection | MIT |
| description | A new computational model for initial sizing and performance prediction of vertical axis wind turbines
is presented. The model uses a 2D hybrid dynamic vortex and blade element momentum approach. Each
airfoil is modeled as a single vortex of time varying strength with an analytical model for the influence of the
shed vorticity. The vortex strengths are calculated by imposing a flow tangency condition at the three-quarter
chord location on each airfoil, modified in the case of stall. The total blade forces and the momentum-based
streamtube deceleration are then obtained using pre-computed c[subscript d] and c[subscript m] 2D blade profile characteristics.
Model fidelity is improved over previous models because flow curvature, dynamic vortices, blade interactions,
static stall, and streamtube changes are all taken into account. Fast convergence is obtained for a large range
of solidity and tip speed ratio, which allows optimization of various parameters, including blade pitch angle
variation. |
| first_indexed | 2024-09-23T14:57:57Z |
| format | Article |
| id | mit-1721.1/59430 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:57:57Z |
| publishDate | 2010 |
| publisher | American Institute of Aeronautics and Astronautics |
| record_format | dspace |
| spelling | mit-1721.1/594302022-10-01T23:37:41Z A low order model for vertical axis wind turbines Asher, Isaac M. Drela, Mark Peraire, Jaime Massachusetts Institute of Technology. Department of Aeronautics and Astronautics Drela, Mark Drela, Mark Asher, Isaac M. Peraire, Jaime A new computational model for initial sizing and performance prediction of vertical axis wind turbines is presented. The model uses a 2D hybrid dynamic vortex and blade element momentum approach. Each airfoil is modeled as a single vortex of time varying strength with an analytical model for the influence of the shed vorticity. The vortex strengths are calculated by imposing a flow tangency condition at the three-quarter chord location on each airfoil, modified in the case of stall. The total blade forces and the momentum-based streamtube deceleration are then obtained using pre-computed c[subscript d] and c[subscript m] 2D blade profile characteristics. Model fidelity is improved over previous models because flow curvature, dynamic vortices, blade interactions, static stall, and streamtube changes are all taken into account. Fast convergence is obtained for a large range of solidity and tip speed ratio, which allows optimization of various parameters, including blade pitch angle variation. 2010-10-20T18:38:49Z 2010-10-20T18:38:49Z 2010-06 Article http://purl.org/eprint/type/ConferencePaper AIAA 2010-4401 http://hdl.handle.net/1721.1/59430 Asher, Isaac M., Mark Drela and Jaime Peraire. "A Low Order Model for Vertical Axis Wind Turbines." in Proceedings of the 28th AIAA Applied Aerodynamics Conference 28 June-1 July 2010, Chicago, Illinois. https://orcid.org/0000-0002-3912-1753 https://orcid.org/0000-0002-8556-685X en_US 28th AIAA Applied Aerodynamics Conference Attribution-Noncommercial-Share Alike 3.0 Unported http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf American Institute of Aeronautics and Astronautics MIT web domain |
| spellingShingle | Asher, Isaac M. Drela, Mark Peraire, Jaime A low order model for vertical axis wind turbines |
| title | A low order model for vertical axis wind turbines |
| title_full | A low order model for vertical axis wind turbines |
| title_fullStr | A low order model for vertical axis wind turbines |
| title_full_unstemmed | A low order model for vertical axis wind turbines |
| title_short | A low order model for vertical axis wind turbines |
| title_sort | low order model for vertical axis wind turbines |
| url | http://hdl.handle.net/1721.1/59430 https://orcid.org/0000-0002-3912-1753 https://orcid.org/0000-0002-8556-685X |
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