Turbulence modification in the vicinity of a solid particle

Aurore Naso*, Andrea Prosperetti

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The turbulent transport of material particles is a very general phenomenon, occuring in many natural (dust storms, pollutants in the atmosphere, plankton in the ocean, …) and industrial (fluidized beds, chemical reactors, …) systems. The dynamics of particles suspended in a turbulent flow depends on their size and on their mass density. Very small neutrally buoyant particles behave as passive tracers, co-moving with the fluid, whereas inertial and finite-size effects are expected to occur for larger objects which are buoyant or denser than the fluid. The dynamics of very small heavy particles has been studied by modeling the hydrodynamic forces acting on them as the sum of a (possibly corrected) Stokes drag, added mass, and other forces; in this way it has been possible to simulate the dynamics of millions of particles (see e.g. [1]).

Original languageEnglish
Title of host publicationAdvances in Turbulence XII - Proceedings of the 12th EUROMECH European Turbulence Conference, 2009
EditorsBruno Eckhardt
PublisherSpringer Science + Business Media
Pages509-512
Number of pages4
ISBN (Print)9783642030840
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event12th EUROMECH European Turbulence Conference, ETC 2009 - Marburg, Germany
Duration: 7 Sep 200910 Sep 2009
Conference number: 12

Publication series

NameSpringer Proceedings in Physics
Volume132
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

Conference12th EUROMECH European Turbulence Conference, ETC 2009
Abbreviated titleETC
Country/TerritoryGermany
CityMarburg
Period7/09/0910/09/09

Keywords

  • Computational Domain
  • Dust Storm
  • Hydrodynamic Force
  • Particle Volume Fraction
  • Spherical Shell

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