Williams-Stuber, K. and Gharib, M. (1989) Study of the origin of three dimensional structures and chaos in an externally forced free shear layer. AIAA Papers, 89-1021. American Institute of Aeronautics and Astronautics , New York. https://resolver.caltech.edu/CaltechAUTHORS:20130920-095600412
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Abstract
Experiments on an externally forced free shear layer are performed which study the origin of three-dimensional structures and chaos in shear flows. Transition routes between the laminar two-dimensional stages of shear flows and their final complex three-dimensional stages are examined. Two avenues of investigation are pursued. First, the general idea of a multi-frequency route to chaos is examined which treats the shear flow as an open dynamical system. An attempt is made to apply concepts from nonlinear dynamics to these systems. Secondly, a new approach to generating three-dimensional structures in shear flows which involves the creation of a spatial shear in the frequency of external perturbations is presented. In these experiments, a variety of vortex reconnection behaviors is observed at the discontinuity.
| Item Type: | Report or Paper (Report) | ||||||
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| Additional Information: | © 1989 by K. Williams-Stuber and M. Gharib. Published by the American Institute of Aeronautics and Astronautics, Inc. with permission. The work presented here was sponsored by AFOSR under contract number AFOSR-87-0330. | ||||||
| Group: | GALCIT | ||||||
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| Series Name: | AIAA Papers | ||||||
| Issue or Number: | 89-1021 | ||||||
| DOI: | 10.2514/6.1989-1021 | ||||||
| Record Number: | CaltechAUTHORS:20130920-095600412 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20130920-095600412 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 41438 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 20 Sep 2013 19:28 | ||||||
| Last Modified: | 10 Nov 2021 04:30 |
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