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PIV Measurements and Laser-Sheet Visualization of the Unsteady Flowfield Over an Airfoil Pitching in Dynamic Stall Conditions

Wernert, P. and Koerber, G. and Wietrich, F. and Raffel, M. and Kompenhans, J. (1995) PIV Measurements and Laser-Sheet Visualization of the Unsteady Flowfield Over an Airfoil Pitching in Dynamic Stall Conditions. 7th International Symposium on Flow Visualization, Seattle, Washington, USA, September 11-14. 1995.

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Abstract

The unsteady flowfield above a NACA 0012 airfoil pitching under deep dynamic stall conditions has been investigated in a low-speed wind tunnel by means of Particle Image Velocimetry (PIV) mesurements and laser-sheet visualizations. The PIV results have beenfound to be of high quality, although velocity data were missing in some critical flow regions. A correct estimation of vortex distribution and out-of-plane velocity gradients could be determined.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1995,
Title:PIV Measurements and Laser-Sheet Visualization of the Unsteady Flowfield Over an Airfoil Pitching in Dynamic Stall Conditions
Authors:
AuthorsInstitution or Email of Authors
Wernert, P.Institut Franco-Allemand de Recherches de Saint-Louis, ISL
Koerber, G.ISL
Wietrich, F.ISL
Raffel, M.UNSPECIFIED
Kompenhans, J.UNSPECIFIED
Date:1995
Page Range:pp. 660-665
Status:Published
Keywords:NACA 0012, dynamic stall, Particle Image Velocimetry (PIV), laser-sheet visualizations
Event Title:7th International Symposium on Flow Visualization, Seattle, Washington, USA, September 11-14. 1995
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L DT - Drehflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:08

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