NDLI: Near-Wake Turbulence Properties in the High Reynolds Number Incompressible Flow Around a Circular Cylinder Measured by Two- and Three-Component PIV

Content Provider	Springer Nature Link
Author	Perrin, R. Braza, M. Cid, E. Cazin, S. Moradei, F. Barthet, A. Sevrain, A. Hoarau, Y.
Copyright Year	2006
Abstract	The main objective of the present experimental study is to analyse the turbulence properties in unsteady flows around bluff body wakes and to provide a database for improvement and validation of turbulence models, concerning the present class of non-equilibrium flows. The flow around a circular cylinder with a low aspect ratio ( $L/D=4.8$ ) and a high blockage coefficient ( $D/H=0.208$ ) is investigated. This confined environment is used in order to allow direct comparisons with realisable 3D Navier–Stokes computations avoiding ‘infinite’ conditions. The flow is investigated in the critical regime at Reynolds number 140,000. A cartography of the velocity fields in the near wake of the cylinder is obtained by PIV and Stereoscopic PIV techniques. Statistical means and phase-averaged quantities are determined. Furthermore, POD analysis is performed on the data set in order to extract coherent structures of the flow and to compare the results with those obtained by the conditional sampling technique. The Reynolds stresses, the strain-rate and vorticity fields as well as the turbulence production terms are determined.
Starting Page	185
Ending Page	204
Page Count	20
File Format	PDF
ISSN	13866184
Journal	Flow, Turbulence and Combustion
Volume Number	77
Issue Number	1-4
e-ISSN	15731987
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-09-22
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	detached turbulent flow PIV stereoscopic PIV organised motion phase averaging POD Automotive and Aerospace Engineering, Traffic Mechanics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Physical and Theoretical Chemistry Chemical Engineering

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Near-Wake Turbulence Properties around a Circular Cylinder at High Reynolds Number

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Near-Wake Turbulence Properties in the High Reynolds Number Incompressible Flow Around a Circular Cylinder Measured by Two- and Three-Component PIV

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