Quantifying Turbulence-Induced Segregation of Inertial Particles

E. Calzavarini, Massimo Cencini, Detlef Lohse, F. Toschi

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Abstract

Particles with different density from the advecting turbulent fluids cluster due to the different response of light and heavy particles to turbulent fluctuations. This study focuses on the quantitative characterization of the segregation of dilute polydisperse inertial particles evolving in turbulent flow, as obtained from direct numerical simulation of homogeneous isotropic turbulence. We introduce an indicator of segregation amongst particles of different inertia and/or size, from which a length scale rseg, quantifying the segregation degree between two particle types, is deduced.
Original languageUndefined
Pages (from-to)084504-1-084504-4
Number of pages4
JournalPhysical review letters
Volume101
Issue number8
DOIs
Publication statusPublished - 2008

Keywords

  • IR-59280
  • METIS-249232

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