Journal article · Conference paper
Development of new tip-loss corrections based on vortex theory and vortex methods
In
Journal of Physics: Conference Series (online)
—
2014, Volume 555, pp. 012012
Abstract
A new analytical formulation of the tip-loss factor is established based on helical vortex lament solutions. The derived tip-loss factor can be applied to wind-turbines, propellers or other rotary wings. Similar numerical formulations are used to assess the influence of wake expansion on tip-losses.
Theodorsen's theory is successfully applied for the first time to assess the wake expansion behind a wind turbine. The tip-loss corrections obtained are compared with the ones from Prandtl and Glauert and implemented within a new Blade Element Momentum(BEM) code. Wake expansion is seen to reduce tip-losses and have a greater influence than wake distortion.
| Language: | English |
|---|---|
| Publisher: | IOP Publishing |
| Year: | 2014 |
| Pages: | 012012 |
| Proceedings: | The science of Making Torque from Wind 2012European Academy of Wind Energy : The Science of Making Torque from Wind |
| ISSN: | 17426596 and 17426588 |
| Types: | Journal article and Conference paper |
| DOI: | 10.1088/1742-6596/555/1/012012 |
| ORCIDs: | Branlard, Emmanuel Simon Pierre and Gaunaa, Mac |
