Particle image velocimetry of a low-Reynolds-number separation bubble
Boiko, Andrey and Dovgal, Alexander and Hein, Stefan and Henning, Arne (2011) Particle image velocimetry of a low-Reynolds-number separation bubble. Experiments in Fluids, Vol. 50 (1), pp. 13-21. Springer Heidelberg, Berlin. DOI: 10.1007/s00348-010-0887-z. ISSN 0723-4864 (Print), 1432-114 (Online).
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Boundary-layer separation at a backward-facing step of a flat plate has been investigated in a low-turbulence wind tunnel with Particle Image Velocimetry (PIV). The experiments focused on the flow pattern behind the step at the Reynolds number based on its height of about 1000. Under quiet environmental and low-Re-number conditions, laminar flow separation was observed behind the step subjected to a small amount of the shear-layer instability. Examination of natural and controlled velocity perturbations in the separation region indicated that the version of PIV used in the present study is an appropriate tool to deal with linear-instability details that is normally done through hotwire measurements.
|Additional Information:||Published online: 4 May 2010|
|Title:||Particle image velocimetry of a low-Reynolds-number separation bubble|
|Journal or Publication Title:||Experiments in Fluids|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 13-21|
|Publisher:||Springer Heidelberg, Berlin|
|ISSN:||0723-4864 (Print), 1432-114 (Online)|
|Keywords:||PIV, separation bubble, linear instability theory|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L AR - Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Flight Physics|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Helicopters|
Institute of Aerodynamics and Flow Technology > Experimental Methods
|Deposited By:||Dr.-Ing. Stefan Hein|
|Deposited On:||09 Jun 2010 10:46|
|Last Modified:||07 Feb 2013 20:12|
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