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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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Official URL: http://www.springerlink.com/content/xw6m843148ut2478/?print=true


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.

Document Type:Article
Additional Information:Published online: 4 May 2010
Title:Particle image velocimetry of a low-Reynolds-number separation bubble
AuthorsInstitution or Email of Authors
Boiko, AndreyITAM Novosibirsk
Dovgal, AlexanderITAM Novosibirsk
Henning, ArneTU-Berlin
Journal or Publication Title:Experiments in Fluids
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:Vol. 50
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:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
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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