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

I. Jacobi, M. Guala, B. J. McKeon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish (US)
Title of host publication40th AIAA Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781617389221
DOIs
StatePublished - 2010

Publication series

Name40th AIAA Fluid Dynamics Conference
Volume1

Fingerprint Dive into the research topics of 'Characteristics of a turbulent boundary layer perturbed by spatially-impulsive dynamic roughness'. Together they form a unique fingerprint.

Cite this