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Experiments in Fluids
Erschienen in: Experiments in Fluids 3/2009

01.03.2009 | Research Article

Vortex flows in open cylindrical-section cavities

verfasst von: Ralph Savelsberg, Ian Castro

Erschienen in: Experiments in Fluids | Ausgabe 3/2009

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Abstract

Flow within a large-aspect-ratio cylindrical vortex cell has been explored experimentally. The flow was driven by a shear layer above an opening in the cylinder circumference. Reynolds numbers, based on the length of the opening and the velocity just outside it, exceed 50,000. It is shown that the expected solid body rotation within the cell, with a constant velocity gradient across most of the core, is qualitatively present, but is significantly distorted by three-dimensional effects. Nonetheless, turbulence levels within the core are very low, only rising to levels similar to those in regular turbulent shear flows within the driving mixing layer itself and the cell-wall boundary layers.
Vorheriger Artikel Flow visualization using tobacco mosaic virus
Nächster Artikel Dissipation rate estimation from PIV in zero-mean isotropic turbulence

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Fußnoten
1
We are grateful to one of our EU contract partners, Prof. L. Zannetti of the Department of Aeronautical and Space Engineering (DIASP), Politecnico di Torino, for provision of this solution.
 
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Metadaten
Titel
Vortex flows in open cylindrical-section cavities
verfasst von
Ralph Savelsberg
Ian Castro
Publikationsdatum
01.03.2009
Verlag
Springer-Verlag
Erschienen in
Experiments in Fluids / Ausgabe 3/2009
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-008-0575-4

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