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Elutriation from Fluidized BEDS: Comparison between experimental measurements and 3D simulation results

Ansart, Renaud and Neau, Hervé and Accart, Philippe and De Ryck, Alain and Simonin, Olivier Elutriation from Fluidized BEDS: Comparison between experimental measurements and 3D simulation results. (2011) In: International Conference on Circulating Fluidized Beds and FluidiZed Bed Technology - CFB 10, 1-5 May 2011, Oregon, USA . (Unpublished)

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Abstract

This paper presents comparisons between experimental measurements and unsteady threedimensional numerical simulations performed by an unstructured parallelized CFD multiphase flow code of elutriation and transport of mono-dispersed glass beads type B and A/B in a fluidized bed. These comparisons show a satisfactory agreement between experimental measurements and numerical predictions. The numerical results also show a strong dependence on the mesh size, especially for fine particles. A model accounting for influences of mesoscales structures on overall bed hydrodynamics, which are not resolved by coarse mesh simulations, is applied. Results obtained with the model show improvements for the dense fluidized bed and even for a transport step.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
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Deposited By: Renaud ANSART
Deposited On:15 Mar 2013 12:14

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