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Experimental study of the stabilization of Tollmien-Schlichting waves by finite amplitude streaks
KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0002-3251-8328
KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0002-4346-4732
KTH, School of Engineering Sciences (SCI), Mechanics.
2006 (English)In: Sixth IUTAM Symposium on Laminar-Turbulent Transition / [ed] Govindarajan, R, DORDRECHT: SPRINGER , 2006, Vol. 78, 299-304 p.Conference paper (Refereed)
Abstract [en]

The stabilization of Tollmien-Schlichting (TS) waves in a spanwise modulated Blasius boundary layer has been experimentally verified in the MTL wind tunnel at KTH. The alternating high and low speed streaks were created by regularly spaced cylindrical roughness elements mounted on the flat plate. It is shown that the larger the streak amplitude the larger is the damping effect of the TS-waves, which is in agreement with recent theoretical work.

Place, publisher, year, edition, pages
DORDRECHT: SPRINGER , 2006. Vol. 78, 299-304 p.
Keyword [en]
boundary-layer, streamwise vortices, transition
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-42093DOI: 10.1007/1-4020-4159-4_41ISI: 000236905600041ScopusID: 2-s2.0-84859832748ISBN: 1-4020-3459-8OAI: diva2:446103
th IUTAM Symposium on Laminar-Turbulent Transition. Bangalore, INDIA. DEC 13-17, 2004
QC 20111006Available from: 2011-10-06 Created: 2011-10-05 Last updated: 2012-02-21Bibliographically approved

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Fransson, Jens H MBrandt, LucaTalamelli, AlessandroCossu, Carlo
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