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Numerical modelling of finite-size particle collisions in a viscous fluid

Brandle de Motta, Jorge and Breugem, Wim-Paul and Gazanion, Bertrand and Estivalezes, Jean-Luc and Vincent, Stéphane and Climent, Éric Numerical modelling of finite-size particle collisions in a viscous fluid. (2013) Physics of Fluids, vol. 25. pp. 1-9. ISSN 1070-6631

(Document in English)

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Official URL: http://dx.doi.org/10.1063/1.4817382


A general model is presented for short-range hydrodynamic interactions and headon particle-particle/wall collisions. The model has been embedded in two distinct numerical methods for fully resolved simulation of finite-size particles in a viscous fluid. It accounts for the material properties of the particles and lubrication effects prior to collision that cannot be fully resolved on a fixed grid. We demonstrate that the model is able to reproduce experimental data for the coefficient of restitution of particle-wall collisions over a wide range of Stokes number based on the particle impact velocity. The set of model parameters we selected and more generally the modelling approach we propose can be efficiently used for fully resolved simulations of moderately dense solid-liquid suspensions.

Item Type:Article
Additional Information:Thanks to AIP editor. The definitive version is available at http://scitation.aip.org The original PDF can be found at http://scitation.aip.org/content/aip/journal/pof2/25/8/10.1063/1.4817382
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Arts et Métiers ParisTech (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Other partners > Université de Bordeaux 1 (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Delft University of Technology - TU Delft (NETHERLANDS)
Laboratory name:
Deposited By: Eric CLIMENT
Deposited On:17 Oct 2013 08:15

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