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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:
AuthorsInstitution or Email of Authors
Heine, BenjaminUNSPECIFIED
Mulleners, KarenUNSPECIFIED
Gardner, AnthonyUNSPECIFIED
Mai, HolgerUNSPECIFIED
Date:October 2009
Refereed publication: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: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:12 Dec 2013 20:42

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