CaltechAUTHORS
  A Caltech Library Service

Three-dimensional structure of ordered and chaotic vortex streets behind circular cylinders at low Reynolds numbers

Van Atta, C. W. and Gharib, M. and Hammache, M. (1988) Three-dimensional structure of ordered and chaotic vortex streets behind circular cylinders at low Reynolds numbers. Fluid Dynamics Research, 3 (1-4). pp. 127-132. ISSN 1873-7005. http://resolver.caltech.edu/CaltechAUTHORS:20131024-085544182

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20131024-085544182

Abstract

We have investigated the spatial and temporal structure of certain cases of chaotic and organized vortex shedding in self-excited cylinder wakes at low Reynolds number (40–200) by extending hot-wire measurements to much larger downstream locations than our earlier measurements (Van Atta and Gharib, 1987) and performing concurrent smoke-wire flow visualizations. We describe here results for two cases in which chaotic vortex shedding is observed. The first is the single-vibration frequency locked-in case, in which the most highly disturbed regions of the vortex street, which produce chaotic spectra, are confined to compact spanwise-periodic propagating disturbed regions. The second is the multiple-vibration frequency case in which chaotic velocity spectra are observed at all spanwise locations.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://www.sciencedirect.com/science/article/pii/016959838890055XPublisherArticle
Additional Information:© 1988 Published by Elsevier B.V. This work was supported by ACMP/DARPA, under the University Research Initiative “Program on Research and Education in Chaotic and Turbulent Fluid Dynamics”, in the DARPA Applied and Computational Mathematics Program, Grant # N00014-86-K-0758.
Group:GALCIT
Funders:
Funding AgencyGrant Number
DARPA/ACMPN00014-86-K-0758
Record Number:CaltechAUTHORS:20131024-085544182
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20131024-085544182
Official Citation:C.W. Van Atta, M. Gharib, M. Hammache, Three-dimensional structure of ordered and chaotic vortex streets behind circular cylinders at low Reynolds numbers, Fluid Dynamics Research, Volume 3, Issues 1–4, 1 September 1988, Pages 127-132, ISSN 0169-5983, http://dx.doi.org/10.1016/0169-5983(88)90055-X. (http://www.sciencedirect.com/science/article/pii/016959838890055X)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42033
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:24 Oct 2013 22:22
Last Modified:30 Sep 2016 17:35

Repository Staff Only: item control page