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Local dissipation properties and collision dynamics in a sustained homogeneous turbulent suspension composed of finite size particles

Brändle de Motta, Jorge César and Estivalezes, Jean-Luc and Climent, Éric and Vincent, Stéphane Local dissipation properties and collision dynamics in a sustained homogeneous turbulent suspension composed of finite size particles. (2016) International Journal of Multiphase Flow, 85. 369-379. ISSN 0301-9322

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Official URL: http://dx.doi.org/10.1016/j.ijmultiphaseflow.2016.07.003

Abstract

Particulate flows are present in many applications and the effect of particle size is still not well under- stood. The present paper describes three cases of sustained homogeneous turbulence interacting with particles. Simulations correspond to three particle-fluid density ratios and 3% volume fraction in zero gravity field. Fully resolved particle simulations are based on fictitious domain and penalty method. The local dissipation around particles is studied according to the density ratio. Spatial description of the averaged dissipation is provided. Collision statistics are also investigated. The inter collision time and the angle of collision are compared to the kinetic theory. The effect of the inter particle film drainage is highlighted by simulating the same configurations with and without lubrication model.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at http://www.sciencedirect.com/science/article/pii/S0301932216301951
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 - Toulouse INP (FRANCE)
Other partners > Institut National des Sciences Appliquées de Rouen - INSA (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Other partners > Université de Rouen - UR (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Université Paris-Est Marne-La-Vallée - UPEM (FRANCE)
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Funders:
CINES - CCRT
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Deposited On:11 Sep 2017 13:55

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