Abstract
There has been little research on the effect of turbulence on the performance of airfoil sections near stall, and some of the results have been contradictory. Wind turbines operate in the turbulent natural wind but their rotation will limit the turbulence levels the blades experience. This study looked at the effect of small intensities of turbulence on the performance of a thick, cambered airfoil section, such as those used at the base of a wind turbine blade. Two rows of pressure taps were placed a chord length either side of the tunnel centre line. They showed different results during stall due to different positions relative to the stall cells. All levels of turbulence investigated affected the stall characteristics of the airfoil. The higher intensities of 3% and 5% significantly altered the stall characteristics.
| Original language | English |
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| Title of host publication | Collection of ASME Wind Energy Symposium Technical Papers AIAA Aerospace Sciences Meeting and Exhibit |
| Pages | 281-290 |
| Number of pages | 10 |
| Publication status | Published - 29 Jul 2004 |
| Event | Collection of the 2004 ASME Wind Energy Symposium Technical Papers at the 42nd AIAA Aerospace Sciences Meeting and Exhibit - Reno, United States of America Duration: 5 Jan 2004 → 8 Jan 2004 |
Conference
| Conference | Collection of the 2004 ASME Wind Energy Symposium Technical Papers at the 42nd AIAA Aerospace Sciences Meeting and Exhibit |
|---|---|
| Country/Territory | United States of America |
| City | Reno |
| Period | 5/01/04 → 8/01/04 |