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Transition models from the quenched to ignited states for flows of inertial particles suspended in a simple sheared viscous fluid

Parmentier, Jean-François and Simonin, Olivier Transition models from the quenched to ignited states for flows of inertial particles suspended in a simple sheared viscous fluid. (2012) Journal of Fluid Mechanics, 711. 147-160. ISSN 0022-1120

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Official URL: http://dx.doi.org/10.1017/jfm.2012.381

Abstract

A review of existing theories for flows of inertial particles suspended in an unbounded sheared viscous fluid is presented first. A comparison between theoretical predictions and numerical simulation results is made for Stokes numbers from 1 to 10 in dilute and dense flows. Both particle agitation and anisotropy coefficients are examined, showing that neither of them is able to give satisfactory results in dense flows. A more precise calculation of collisional contributions to the balance law of the particle stress tensor is presented. Results of the corresponding theory are in very good agreement with numerical simulations both in dilute and dense flows.

Item Type:Article
Additional Information:Thanks to Cambridge University Press editor. The definitive version is available at http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8735708
HAL Id:hal-00936863
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Olivier SIMONIN
Deposited On:27 Jan 2014 14:11

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