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Active Control of Leading-Edge Separation within the German Flow Control Network

Scholz, Peter and Kähler, Christian and Radespiel, Rolf and Wild, Jochen and Wichmann, Georg (2009) Active Control of Leading-Edge Separation within the German Flow Control Network. In: 47th AIAA Aerospace Sciences Meeting (AIAA 2009-0529). AIAA. ASM 2009, 2009-01-05 - 2009-01-08, Orlando, FL (USA).

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The paper describes experiments with a 2D two-element high-lift airfoil with active flow control in a 2.8m windtunnel. The flow control system is integrated into the nose region of the airfoil to delay the onset of leading-edge stall, it consists of pulsed vortex generator jets that utilize compressed air. The results indicate that active flow control can be applied at a practical high-lift system. The pulsed vortex generator jets effectively delay the onset of separation at the main element and increase amax and cl,max respectively. However, the margin that can be gained is very dependent on the overall stall behavior of the airfoil.

Item URL in elib:https://elib.dlr.de/57263/
Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:AIAA 2009-0529
Title:Active Control of Leading-Edge Separation within the German Flow Control Network
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Scholz, PeterTU BraunschweigUNSPECIFIED
Kähler, ChristianTU BraunschweigUNSPECIFIED
Radespiel, RolfTU BraunschweigUNSPECIFIED
Date:January 2009
Journal or Publication Title:47th AIAA Aerospace Sciences Meeting
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:flow control, separation control, leading-edge, fluidic vortex generators, high-lift
Event Title:ASM 2009
Event Location:Orlando, FL (USA)
Event Type:international Conference
Event Dates:2009-01-05 - 2009-01-08
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Wild, Dr.-Ing. Jochen
Deposited On:30 Jan 2009
Last Modified:27 Apr 2009 15:42

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