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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, 2014-06-16 - 2014-06-20, Atlanta, Georgia, USA. doi: 10.2514/6.2014-2879.
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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/ | ||||||||||||||||||||
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| 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: |
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| Date: | 2014 | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| DOI: | 10.2514/6.2014-2879 | ||||||||||||||||||||
| 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 Start Date: | 16 June 2014 | ||||||||||||||||||||
| Event End Date: | 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 (old) | ||||||||||||||||||||
| 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: | 24 Apr 2024 19:51 |
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