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Experiments in Fluids

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01.11.2004 | Original

Wake structure of a finite circular cylinder of small aspect ratio

verfasst von: D. Sumner, J. L. Heseltine, O. J. P. Dansereau

Erschienen in: Experiments in Fluids | Ausgabe 5/2004

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Abstract

The wake of a finite circular cylinder of small aspect ratio was studied with a seven-hole probe and thermal anemometry. The cylinder was mounted normal to a ground plane and was partially immersed in a turbulent boundary layer. The time-averaged velocity and streamwise vorticity fields showed the development of the tip vortex structures, the extent of the near-wake recirculation zone, the downwash phenomenon and base vortex structures within the boundary layer. The wake structure and power spectra were similar for cylinder aspect ratios of 5 to 9, but a distinctly different behaviour was observed for an aspect ratio of 3.

Vorheriger Artikel Flow and heat transfer in the wake of a surface-mounted rib with a slit

Nächster Artikel Microbubble drag reduction in rough walled turbulent boundary layers with comparison against polymer drag reduction

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Titel: Wake structure of a finite circular cylinder of small aspect ratio
verfasst von: D. Sumner
J. L. Heseltine
O. J. P. Dansereau
Publikationsdatum: 01.11.2004
Verlag: Springer-Verlag
Erschienen in: Experiments in Fluids / Ausgabe 5/2004
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI: https://doi.org/10.1007/s00348-004-0862-7

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