Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published June 2010 | Published
Conference Paper Open

Characteristics of a turbulent boundary layer perturbed by spatially-impulsive dynamic roughness


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


Files (1.2 MB)
Name Size Download all
1.2 MB Preview Download

Additional details

August 19, 2023
October 20, 2023