Extension of a Helicoidal Vortex Model to Account for Blade Flexibility and Tower InterferenceSource: Journal of Solar Energy Engineering:;2006:;volume( 128 ):;issue: 004::page 455Author:Jean-Jacques Chattot
DOI: 10.1115/1.2349546Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The unsteady vortex method has been extended to account for blade flexibility and tower interference. These are two potential sources of unsteadiness of the flow past a wind turbine blade. The cases presented correspond to an incoming flow speed V=5m∕s and low yaw angles and V=8, 10, and 12m∕s and zero yaw. Comparisons of the root flap bending moments predicted by the model with the National Renewable Energy Laboratory (NREL) experimental data indicate that the NREL blades designed for the wind tunnel campaigns are quite rigid and that the tower interference is responsible for unsteadiness that is well captured by the model for zero yaw as well as for yaw of 5, 10 and 20deg.
keyword(s): Vortices , Blades , Yaw AND Plasticity ,
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| contributor author | Jean-Jacques Chattot | |
| date accessioned | 2017-05-09T00:21:29Z | |
| date available | 2017-05-09T00:21:29Z | |
| date copyright | November, 2006 | |
| date issued | 2006 | |
| identifier issn | 0199-6231 | |
| identifier other | JSEEDO-28399#455_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/134576 | |
| description abstract | The unsteady vortex method has been extended to account for blade flexibility and tower interference. These are two potential sources of unsteadiness of the flow past a wind turbine blade. The cases presented correspond to an incoming flow speed V=5m∕s and low yaw angles and V=8, 10, and 12m∕s and zero yaw. Comparisons of the root flap bending moments predicted by the model with the National Renewable Energy Laboratory (NREL) experimental data indicate that the NREL blades designed for the wind tunnel campaigns are quite rigid and that the tower interference is responsible for unsteadiness that is well captured by the model for zero yaw as well as for yaw of 5, 10 and 20deg. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Extension of a Helicoidal Vortex Model to Account for Blade Flexibility and Tower Interference | |
| type | Journal Paper | |
| journal volume | 128 | |
| journal issue | 4 | |
| journal title | Journal of Solar Energy Engineering | |
| identifier doi | 10.1115/1.2349546 | |
| journal fristpage | 455 | |
| journal lastpage | 460 | |
| identifier eissn | 1528-8986 | |
| keywords | Vortices | |
| keywords | Blades | |
| keywords | Yaw AND Plasticity | |
| tree | Journal of Solar Energy Engineering:;2006:;volume( 128 ):;issue: 004 | |
| contenttype | Fulltext |