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Natural by-pass boundary layer transition
KTH, School of Engineering Sciences (SCI), Mechanics.
KTH, School of Engineering Sciences (SCI), Mechanics. (SGCE)ORCID iD: 0000-0002-3251-8328
2011 (English)Conference paper, Published paper (Other academic)
Abstract [en]

The present measurement campaign on the free-stream turbulence induced boundary layer transition scenario has provided a unique set of experimental data, with potential to enhance the understanding of the effect of the free-stream turbulence characteristic length scales on the transition location and not only the turbulence intensity, which has been the focus in most previous studies. Recent investigations where the turbulence intensity has been kept essentially constant, while the integral length scale has been changed, show that the transition location is advanced for increasing length scale. However, the present data show that the integral length scale has a relatively small influence on the transition location as compared to the turbulence intensity and data analyses are now directed towards enhanced understanding of how the different parts of the incoming energy spectrum affects the energy growth inside the boundary layer.

Place, publisher, year, edition, pages
2011.
National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
URN: urn:nbn:se:kth:diva-85921OAI: oai:DiVA.org:kth-85921DiVA: diva2:500194
Conference
American Physical Society, 64th Annual meeting of the APS Div. Fluid Dyn., Nov. 20-22, Baltimore, Maryland
Note
QC 20120411Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2012-04-11Bibliographically approved

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Fransson, Jens H. M.

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