Jacobi, I. and Guala, M. and McKeon, B. J. (2010) Characteristics of a turbulent boundary layer perturbed by spatially-impulsive dynamic roughness. In: 40th Fluid Dynamics Conference and Exhibit, 28 June-1 July 2010, Chicago, IL. https://resolver.caltech.edu/CaltechAUTHORS:20150226-094906075
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Abstract
Statistical and spectral analyses of the manipulation of a canonical zero pressure gradient turbulent boundary layer using static roughness and low-frequency dynamic roughness patches are presented. A shift of spectral energy away from the wall downstream of the roughness patch is observed. The dynamic roughness is shown to disrupt the structure of the boundary layer, while embedding its periodic signature in an extensive stretch of the downstream flow field.
| Item Type: | Conference or Workshop Item (Paper) | |||||||||
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| Additional Information: | © 2010 The Authors. This work is supported by the Air Force Office of Scientific Research Hypersonics and Turbulence portfolio, under grant #FA9550-08-1-0049 (Program manager John Schmisseur). | |||||||||
| Group: | GALCIT | |||||||||
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| DOI: | 10.2514/6.2010-4475 | |||||||||
| Record Number: | CaltechAUTHORS:20150226-094906075 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150226-094906075 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 55244 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Jamie Sei | |||||||||
| Deposited On: | 26 Feb 2015 19:31 | |||||||||
| Last Modified: | 10 Nov 2021 20:43 |
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