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Investigation of Unsteady Flow Fields in Wind Tunnels at High Flow Velocities by Means of Particle Image Velocimetry

Kompenhans, J. and Raffel, M. and Vogt, A. and Fischer, M. and Bretthauer, B. and Vollmers, H. and Stasicki, B. (1994) Investigation of Unsteady Flow Fields in Wind Tunnels at High Flow Velocities by Means of Particle Image Velocimetry. In: Proceedings Second International Conference on Experimental Fluid Mechanics (I.C.E.F.M. 94), 4.-8. Juli 1994, Torino, Italien.

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Abstract

Particle Image Velocimetry (PIV) is increasingly used to investigate unsteady velocity fields instantaneously. For the first time the PIV technique allows the recording of a complete velocity field in a plane of the flow within microseconds. This does not only give information about unsteady flow fields otherwise not obtainable but also helps to save operational time in the wind tunnel. At DLR a set up for PIV has been developed which can be operated under the rough environmental conditions (noise, vibrations) of a large wind tunnel. This system has been successfully applied to low speed as well as to high speed flows (U &#61 5. 500 m/s). The evaluation and post processing of the PIV recordings run fully automatical on workstation.

Item URL in elib:https://elib.dlr.de/37218/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1994, pages=12,
Title:Investigation of Unsteady Flow Fields in Wind Tunnels at High Flow Velocities by Means of Particle Image Velocimetry
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kompenhans, J.UNSPECIFIEDUNSPECIFIED
Raffel, M.UNSPECIFIEDUNSPECIFIED
Vogt, A.UNSPECIFIEDUNSPECIFIED
Fischer, M.UNSPECIFIEDUNSPECIFIED
Bretthauer, B.UNSPECIFIEDUNSPECIFIED
Vollmers, H.UNSPECIFIEDUNSPECIFIED
Stasicki, B.UNSPECIFIEDUNSPECIFIED
Date:1994
Journal or Publication Title:Proceedings Second International Conference on Experimental Fluid Mechanics (I.C.E.F.M. 94), 4.-8. Juli 1994, Torino, Italien
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Particle Image Velocimetry, wind tunnels, grid turbulence, boundary layer instabilities, pitching airfoil, transonic flow
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L SI - Versuchs- und Simulationstechniken
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: DLR-Beauftragter, elib
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:08

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