Measurements of the flow over a low-aspect-ratio cylinder mounted on a ground plane
Pattenden, R.J., Turnock, S.R. and Zhang, X. (2005) Measurements of the flow over a low-aspect-ratio cylinder mounted on a ground plane. Experiments in Fluids, 39, (1), 10-21. (doi:10.1007/s00348-005-0949-9)
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Official URL: http://dx.doi.org/10.1007/s00348-005-0949-9
Description/Abstract
The flow over a finite-height cylinder of aspect ratio 1, with one end mounted on a ground plane and the other end free, has been studied by means of surface flow visualisation, particle image velocimetry (PIV) and surface pressure measurements. The diameter-based Reynolds number was 200,000. The mean flow topology has been identified in three areas: the horseshoe vortex system, the separated flow over the free-end and the wake region. Evidence is shown for the existence of a three-horseshoe vortex system, while the mean flow over the free-end consists of an arch vortex with its bases on the forward half of the free-end. There are two tip vortices coming off the free-end. The wake region is found to be highly unsteady, with considerable variation from the mean flow.
| Item Type: | Article |
|---|---|
| ISSN: | 0723-4864 (print) |
| Related URLs: | http://dx.doi.org/10.1007/s003...005-0949-9 |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences |
| ePrint ID: | 23507 |
| Deposited On: | 20 Mar 2006 |
| Last Modified: | 01 Jun 2011 12:12 |
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