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Numerical Analysis of Dust Emission by Powder Discharge and Jet Expansion

Audard, François and Fede, Pascal and Simonin, Olivier and Belut, Emmanuel Numerical Analysis of Dust Emission by Powder Discharge and Jet Expansion. (2015) In: ASME/JSME/KSME 2015 Joint Fluids Engineering Conference, 26 July 2015 - 31 July 2015 (Seoul, Korea, Republic Of).

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Official URL: http://dx.doi.org/10.1115/AJKFluids2015-32120

Abstract

The paper deals with the Euler-Euler numerical simulation of an experimental study (Ansart et al., 2009 [1]) of freely falling granular jet for investigating the dispersion of dust. The configuration is a bunker, where quasi-static particulate flow takes place, and a free-fall chamber. As a first step, a frictional viscosity model developed by Srivastava and Sundaresan (2003) [2] is implemented to take into account the frictional effects occurring in the quasi-static particulate flows. Without the frictional model for the viscosity, the numerical simulations overpredict the solid mass flow rate at the outlet of the bunker. When using the frictional viscosity, the solid mass flow rate is in better accordance with the experimental value. However, the solid velocity is overestimated in numerical simulations.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to the American Society of Mechanical Engineers. This paper appears in : Proceedings of the ASME-JSME-KSME Joint Fluids Engineering Conference 2015. Volume 1: Symposia. ISBN : 978-0-7918-5721-2 The definitive version is available at http://asmedigitalcollection.asme.org The original PDF of the paper can be found at : http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2473294
Audience (conference):International conference proceedings
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 de Recherche et Sécurité - INRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:12 May 2016 16:56

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