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A novel method to promote parallel vortex shedding in the wake of circular cylinders

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. 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
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.857306 DOIArticle
http://pof.aip.org/resource/1/pfadeb/v1/i10/p1611_s1PublisherArticle
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
Funders:
Funding AgencyGrant Number
DARPA/URIN00014-86-K-0758
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
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:03 Oct 2019 05:48

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