Published June 2010
| Published
Conference Paper
Open
Characteristics of a turbulent boundary layer perturbed by spatially-impulsive dynamic roughness
- Creators
- Jacobi, I.
- Guala, M.
-
McKeon, B. J.
Chicago
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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.
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).Attached Files
Published - AIAA-2010-4475-378.pdf
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AIAA-2010-4475-378.pdf
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Additional details
- Eprint ID
- 55244
- Resolver ID
- CaltechAUTHORS:20150226-094906075
- Air Force Office of Scientific Research (AFOSR)
- FA9550-08-1-0049
- Created
-
2015-02-26Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- GALCIT
- Other Numbering System Name
- AIAA Paper
- Other Numbering System Identifier
- 2010-4475