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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. 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.

Item URL in elib:https://elib.dlr.de/58694/
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 AuthorsAuthor's ORCID iD
Boiko, AndreyITAM NovosibirskUNSPECIFIED
Dovgal, AlexanderITAM NovosibirskUNSPECIFIED
Henning, ArneTU-BerlinUNSPECIFIED
Journal or Publication Title:Experiments in Fluids
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Volume:Vol. 50
DOI :10.1007/s00348-010-0887-z
Page Range:pp. 13-21
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 (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Hein, Dr.-Ing. Stefan
Deposited On:09 Jun 2010 10:46
Last Modified:06 Sep 2019 15:25

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