The stress in a non-uniform suspension of heavy particles

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Abstract

The ensemble averaged stress system in a non-uniform suspension of equal spheres subject to external forces or torques is considered. It is found that, as a consequence of the spatial non-uniformity of the system, new terms arise both in the symmetric and antisymmetric parts of the bulk stress. In particular, a new antisymmetric contribution is found even in the absence of external torques. All these terms depend on the particle volume fraction but are independent of the particle size. At low concentrations these results are established by a new formulation of the renormalization technique while, at finite concentrations, a combination of ensemble averaging and numerical simulation is used.
Original languageEnglish
Publication statusPublished - 20 Nov 2005
Event58th Annual Meeting of the APS Division of Fluid Dynamics, APS-DFD 2005 - Chicago, United States
Duration: 20 Nov 200522 Nov 2005
Conference number: 58

Conference

Conference58th Annual Meeting of the APS Division of Fluid Dynamics, APS-DFD 2005
Abbreviated titleAPS-DFD
CountryUnited States
CityChicago
Period20/11/0522/11/05

Keywords

  • METIS-229492

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