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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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 = 5. 500 m/s). The evaluation and post processing of the PIV recordings run fully automatical on workstation.
|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|
|Journal or Publication Title:||Proceedings Second International Conference on Experimental Fluid Mechanics (I.C.E.F.M. 94), 4.-8. Juli 1994, Torino, Italien|
|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:||L - no assignement|
|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:||elib DLR-Beauftragter|
|Deposited On:||03 Apr 2006|
|Last Modified:||27 Apr 2009 10:08|
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