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PIV investigations of the flow field over a NACA 0012 airfoil pitching under deep dynamic stall conditions

Raffel, M. and Kompenhans, J. and Wernert, P. (1995) PIV investigations of the flow field over a NACA 0012 airfoil pitching under deep dynamic stall conditions. Experiments in Fluids, Vol. 19, pp. 103-111.

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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 measurements. The results show the characteristic features of the dynamic stall process: formation and development of an organized vortex structure for increasing incidences, subsequent separation and complex flow behaviour during the downstroke regime. Furthermore, small-scale structures could be obtained in the separated flowfield and even within the dynamic stall vortex. These results can be considered to be a good data basis for the validation of numerical codes.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=1994,
Title:PIV investigations of the flow field over a NACA 0012 airfoil pitching under deep dynamic stall conditions
Authors:
AuthorsInstitution or Email of Authors
Raffel, M.UNSPECIFIED
Kompenhans, J.UNSPECIFIED
Wernert, P.ISL
Date:1995
Journal or Publication Title:Experiments in Fluids
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:Vol. 19
Page Range:pp. 103-111
Status:Published
Keywords:PIV dynamic stall, NACA 0012, Particle Image Velocimetry, pitching airfoil
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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