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Transport of inertial particles in turbulent boundary layers
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0002-9172-6311
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0002-4346-4732
KTH, School of Engineering Sciences (SCI), Mechanics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0001-9627-5903
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2011 (English)In: 13th  European Turbulence Conference (ETC13): Particles In Turbulence, Transport Processes And Mixing, Institute of Physics Publishing (IOPP), 2011, 052020- p.Conference paper, Published paper (Refereed)
Abstract [en]

A direct numerical simulations (DNS) of a spatially evolving particle-laden turbulent boundary layer has been performed to study turbophoresis effects in presence of changing local Stokes number. The data show a preferential particle localization near the wall at the streamwise position where the local Stokes number St(+) assumes a value close to 25, similarly to that found in channel flow. Note that a complete steady state will never been reached for the particle concentration in this kind of flow. The effects of the seeding and of preferential sampling of the fluid velocity will be described as well.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2011. 052020- p.
Series
Journal of Physics Conference Series, ISSN 1742-6588 ; 318
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-93028DOI: 10.1088/1742-6596/318/5/052020ISI: 000301293000020Scopus ID: 2-s2.0-84856351832OAI: oai:DiVA.org:kth-93028DiVA: diva2:514619
Conference
13th European Turbulence Conference (ETC) SEP 12-15, 2011 Warsaw, Poland
Note
QC 20120410Available from: 2012-04-10 Created: 2012-04-10 Last updated: 2012-04-10Bibliographically approved

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Sardina, GaetanoBrandt, LucaSchlatter, PhilippHenningson, Dan S.

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