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On the effects of leading edge vortex generators on an OA209 airfoil
Heine, Benjamin and Mulleners, Karen and Gardner, Anthony and Mai, Holger (2009) On the effects of leading edge vortex generators on an OA209 airfoil. ODAS 2009 - 10th ONERA-DLR Aerospace Symposium, 6. Okt. - 8.Okt 2009, Berlin, Germany.
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Abstract
Leading edge vortex generators have been found to significantly increase the aerodynamic performance of an airfoil under dynamic stall conditions. However, the principle of operation of these devices is still unclear. Therefore static wind and water tunnel experiments as well as CFD simulations have been conducted on a rotary aircraft wing profile OA209. A POD analysis applied to the vector fields generated by PIV measurements showed that the vortex generators break larger flow structures into small scale formations. They are able to decrease the impact of the dynamic stall vortex and decrease the undesirable aerodynamic fluctuations associated with dynamic stall.
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Title: | On the effects of leading edge vortex generators on an OA209 airfoil | ||||||||||
| Authors: |
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| Date: | October 2009 | ||||||||||
| Refereed publication: | No | ||||||||||
| In SCOPUS: | No | ||||||||||
| In ISI Web of Science: | No | ||||||||||
| Page Range: | pp. 1-12 | ||||||||||
| Series Name: | Proceedings USB-Stick | ||||||||||
| Status: | Published | ||||||||||
| Keywords: | Vortex generators, dynamic stall, flow visualization, POD | ||||||||||
| Event Title: | ODAS 2009 - 10th ONERA-DLR Aerospace Symposium | ||||||||||
| Event Location: | Berlin, Germany | ||||||||||
| Event Type: | international Conference | ||||||||||
| Event Dates: | 6. Okt. - 8.Okt 2009 | ||||||||||
| Organizer: | DLR/ONERA | ||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||
| HGF - Program: | Aeronautics | ||||||||||
| HGF - Program Themes: | L AR - Aircraft Research | ||||||||||
| DLR - Research area: | Aeronautics | ||||||||||
| DLR - Program: | L AR - Aircraft Research | ||||||||||
| DLR - Research theme (Project): | L - Flight Physics | ||||||||||
| Location: | Göttingen | ||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Helicopters Institute of Aerodynamics and Flow Technology > High Speed Configurations Institute of Aeroelasticity > Aeroelastic Experiments | ||||||||||
| Deposited By: | Benjamin Heine | ||||||||||
| Deposited On: | 10 Oct 2011 11:06 | ||||||||||
| Last Modified: | 10 Oct 2011 11:06 |
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