Hammache, M. and Gharib, M. (1989) A novel method to promote parallel vortex shedding in the wake of circular cylinders. Physics of Fluids A, 1 (10). pp. 1611-1614. ISSN 0899-8213. doi:10.1063/1.857306. https://resolver.caltech.edu/CaltechAUTHORS:20130918-111143210
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Abstract
Slanted vortex shedding dominates the wake of circular cylinders of finite aspect ratio in the Reynolds number range of 72–158. Parallel vortex shedding can be induced in the wake of a circular cylinder by imposing a symmetric pressure boundary condition at the two ends of the cylinder. This condition can be achieved by positioning two upstream circular cylinders of larger diameter normal to it. The resulting Strouhal–Reynolds number curve shows no discontinuity. Also, the turbulent transition in the wake of a circular cylinder could be delayed by using this technique.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1989 American Institute of Physics. Received 15 May 1989; accepted 30 June 1989. The authors would like to acknowledge that the importance of the pressure boundary condition was brought to their attention by Paul Dimotakis and are thankful to Anatol Roshko and Charles Williamson for many stimulating discussions. This work was supported by a grant from DARPA/ URI program Contract No. N00014-86-K-0758. | |||||||||
| Group: | GALCIT | |||||||||
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| Subject Keywords: | CYLINDERS, WAKES, VORTICES, ASPECT RATIO, REYNOLDS NUMBER, PRESSURE, BOUNDARY CONDITIONS, TURBULENCE, CALCULATION METHODS | |||||||||
| Issue or Number: | 10 | |||||||||
| Classification Code: | PACS: 47.27.W-; 47.32.Ef; 47.27.Cn | |||||||||
| DOI: | 10.1063/1.857306 | |||||||||
| Record Number: | CaltechAUTHORS:20130918-111143210 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20130918-111143210 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 41384 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 18 Sep 2013 20:00 | |||||||||
| Last Modified: | 10 Nov 2021 04:29 |
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