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Instantaneous Flow Field Measurements on Pitching Airfoils by Means of Particle Image Velocimetry

Kompenhans, J. and Raffel, M. and Wernert, P. and Schäfer, H.J. (1994) Instantaneous Flow Field Measurements on Pitching Airfoils by Means of Particle Image Velocimetry. In: Proc. Optical Methods and Data Processing in Heat and Fluid Flow, pp. 117-121. Optical Methods and Data Processing in Heat and Fluid Flow, 14.-15. April 1994, London.

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Abstract

SYNOPSIS The unsteady flow field above a NACA 0012 airfoil oscillating in pitch has been investigated at a Reynolds number of Re = 373.000 and a reduced frequency of omega * = 0.3 by means of Particle Image Velocimetry in the subsonic wind tunnel of the ISL. Instantaneous flow fields could be measured under dynamic stall conditions, due to the short measuring time of only a few microseconds as required by the PIV technique. The results show the strong unsteady behaviour of the flow above the airfoil, especially in the downstroke motion.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1994,
Title:Instantaneous Flow Field Measurements on Pitching Airfoils by Means of Particle Image Velocimetry
Authors:
AuthorsInstitution or Email of Authors
Kompenhans, J.UNSPECIFIED
Raffel, M.UNSPECIFIED
Wernert, P.UNSPECIFIED
Schäfer, H.J.UNSPECIFIED
Date:1994
Journal or Publication Title:Proc. Optical Methods and Data Processing in Heat and Fluid Flow
Page Range:pp. 117-121
Status:Published
Keywords:Particle Image Velocimetry, NACA 0012, Dynamic Stall, Oscillating Airfoil
Event Title:Optical Methods and Data Processing in Heat and Fluid Flow, 14.-15. April 1994, London
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 10:07

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