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Experiments in Fluids
Erschienen in: Experiments in Fluids 2/2003

01.08.2003 | Original Paper

Investigation of the secondary corner vortex in a benchmark turbulent backward-facing step using cross-correlation particle imaging velocimetry

verfasst von: S. D. Hall, M. Behnia, C. A. J. Fletcher, G. L. Morrison

Erschienen in: Experiments in Fluids | Ausgabe 2/2003

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Abstract

An experimental study of a turbulent backward-facing step (BFS) was undertaken to investigate the vortex structures behind the step. Attention was given to the secondary vortex because of its poor representation in literature and its potential for evaluating computational turbulence models. A 2D, cross-correlation particle image velocimeter (PIV) was developed, which allowed measurement of the highly turbulent, reversing step flow. Global, high resolution data was obtained for the cross-sectional plane of the BFS and for several other planes parallel to it. Measurement planes across the step revealed the 3D nature of the secondary vortex and an unexpected flow structure was identified. The secondary vortex was found to traverse across the flow, from the cross-sectional plane towards the step edge–sidewall corner.
Vorheriger Artikel X-ray measurements within unsteady cavitation
Nächster Artikel Ultrasound thermometry in transparent and opaque fluids

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Metadaten
Titel
Investigation of the secondary corner vortex in a benchmark turbulent backward-facing step using cross-correlation particle imaging velocimetry
verfasst von
S. D. Hall
M. Behnia
C. A. J. Fletcher
G. L. Morrison
Publikationsdatum
01.08.2003
Verlag
Springer-Verlag
Erschienen in
Experiments in Fluids / Ausgabe 2/2003
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-003-0626-9

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