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3D Flow Field Investigations on Flapping Wing Aerodynamics

Ehlers, Hauke and Konrath, Robert and Wokoeck, Ralf and Radespiel, Rolf (2014) 3D Flow Field Investigations on Flapping Wing Aerodynamics. American Institute of Aeronautics and Astronautics. AIAA Aviation 2014, 16. - 20. June 2014, Atlanta, Georgia, USA.

Full text not available from this repository.

Official URL: http://arc.aiaa.org | DOI: 10.2514/6.2014-2879

Abstract

Three-dimensional, unsteady flow fields of a flapping low aspect ratio wing are investigated by means of tomographic PIV (Tomo-PIV) measurements and computational fluid dynamics (CFD). Furthermore force measurements have been done. Tomo-PIV was applied to the flow above the flat-plate-wing during the down-stroke. A high spatial resolution and a large volume thickness could be achieved by using sensitive sCMOS cameras and a traversable set-up. The CFD calculations cover the complete period of motion. Analyzing the vortex dominated flow fields provides a deeper understanding of vortex interaction and three-dimensionality of low Reynolds number (Re = 18,000 and Re = 36,000) flows. Two different Strouhal numbers (St = 0.06 and St = 0.13) are considered and their effects on the development of a leading edge and tip vortex are discussed.

Item URL in elib:https://elib.dlr.de/85458/
Document Type:Conference or Workshop Item (Speech)
Additional Information:AIAA 2014-2879, 32nd AIAA Applied Aerodynamics Conference, DOI: 10.2514/6.2014-2879
Title:3D Flow Field Investigations on Flapping Wing Aerodynamics
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ehlers, Haukehauke.ehlers (at) dlr.deUNSPECIFIED
Konrath, Robertrobert.konrath (at) dlr.deUNSPECIFIED
Wokoeck, RalfTU-BraunschweigUNSPECIFIED
Radespiel, RolfTU BraunschweigUNSPECIFIED
Date:2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-20
Publisher:American Institute of Aeronautics and Astronautics
Series Name:Conderence Proceedings online
Status:Published
Keywords:Micro Air Vehicle, MAV, Flapping Wing Kinematics, Low Reynolds Number, Low Aspect Ratio, Vortex dynamics, Vortex Interaction, Tomographic PIV, CFD
Event Title:AIAA Aviation 2014
Event Location:Atlanta, Georgia, USA
Event Type:international Conference
Event Dates:16. - 20. June 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:17 Jul 2014 10:06
Last Modified:06 Jun 2016 09:57

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