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Statistics of particle accumulation in spatially developing turbulent boundary layers
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, Centres, SeRC - Swedish e-Science Research Centre.ORCID iD: 0000-0002-9172-6311
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, Centres, SeRC - Swedish e-Science Research Centre.ORCID iD: 0000-0001-9627-5903
KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW. KTH, Centres, SeRC - Swedish e-Science Research Centre.ORCID iD: 0000-0002-4346-4732
Department of Mechanics and Aeronautics, "Sapienza" University of Rome, Via Eudossiana 18, 00184 Rome, Italy.
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2012 (English)In: Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer, 2012, p. 1715-1723Conference paper, Published paper (Refereed)
Abstract [en]

A Direct Numerical Simulation of a particle-laden spatially developing turbulent boundary layer up to Reθ = 2500 has been performed. The peculiar feature of a boundary layer flow seeded with heavy particles is the variation of the local dimensionless parameters defining the fluid-particle interactions along the streamwise direction. An inner and an outer Stokes number can be defined using inner and outer flow units. These two parameters show different decay rates in the streamwise direction so that it is possible to find a decoupled particle dynamics between the inner and the outer region of the boundary layer. Preferential near-wall particle accumulation is similar to that observed in turbulent channel flow, while a self-similar behavior characterizes the outer region.

Place, publisher, year, edition, pages
2012. p. 1715-1723
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-268340DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.1750ISI: 000442136800174Scopus ID: 2-s2.0-85073485450OAI: oai:DiVA.org:kth-268340DiVA, id: diva2:1413264
Conference
Seventh International Symposium On Turbulence Heat and Mass Transfer 2012, 24-27 September, Palermo, Italy
Note

QC 20200310

Available from: 2020-03-10 Created: 2020-03-10 Last updated: 2020-03-16Bibliographically approved

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Publisher's full textScopushttp://www.dl.begellhouse.com/references/1bb331655c289a0a,7c69ce3452e09525,0e81c6867f5e836d.html

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Sardina, GaetanoSchlatter, PhilippBrandt, LucaHenningson, Dan S.

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Sardina, GaetanoSchlatter, PhilippBrandt, LucaHenningson, Dan S.
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Linné Flow Center, FLOWSeRC - Swedish e-Science Research CentreMechanics
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