Statistics of particle accumulation in spatially developing turbulent boundary layers

Sardina G, Schlatter P, Brandt L, Picano F, Casciola CM, Henningson DS (2012)

Publication Type: Conference contribution

Publication year: 2012

Publisher: Begell House Inc.

Book Volume: 2012-September

Pages Range: 1715-1723

Conference Proceedings Title: Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer

Event location: Palermo, ITA

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.1750

Abstract

A Direct Numerical Simulation of a particle-laden spatially developing turbulent boundary layer up to Re? = 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.

Authors with CRIS profile

Philipp Schlatter

Involved external institutions

Kore University of Enna / Università degli Studi di Enna Kore IT Italy (IT) Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH) SE Sweden (SE) Università degli studi "La Sapienza" IT Italy (IT)

How to cite

APA:

Sardina, G., Schlatter, P., Brandt, L., Picano, F., Casciola, C.M., & Henningson, D.S. (2012). Statistics of particle accumulation in spatially developing turbulent boundary layers. In Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer (pp. 1715-1723). Palermo, ITA: Begell House Inc..

MLA:

Sardina, Gaetano, et al. "Statistics of particle accumulation in spatially developing turbulent boundary layers." Proceedings of the 7th International Symposium On Turbulence, Heat and Mass Transfer, THMT 2012, Palermo, ITA Begell House Inc., 2012. 1715-1723.

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