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Gas-solid fluidized bed simulations using the filtered approach: Validation against pilot-scale experiments

Yu, Wenchao and Fede, Pascal and Yazdanpanah, Mahdi and Amblard, Benjamin and Euzenat, Florian and Simonin, Olivier Gas-solid fluidized bed simulations using the filtered approach: Validation against pilot-scale experiments. (2020) Chemical Engineering Science, 217. ISSN 0009-2509

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Official URL: https://doi.org/10.1016/j.ces.2020.115472

Abstract

Numerical simulations of large-scale fluidized beds still remain challenging due to the computational limitation and experimental validation. In the present work, a CFD study of a large-scale fluidized bed is investigated using the NEPTUNE_CFD code based on an Eulerian n-fluid modeling approach. A SubGrid Scale (SGS) drag model based on the filtered approach is used to take into account the effect of very small solid structures unresolved with the coarse mesh. The numerical results are compared with the experimental data carried out in a pilot-scale cold-flow fluidized bed unit and provided by Particulate Solid Research Inc (PSRI). By applying the SGS drag model without any specific or empirical tuning, reasonably good grid-independence is achieved. The flow regimes inside the fluidized bed are well predicted for all the superficial gas velocities studied here. The bed density profiles and the solid entrainment fluxes are also in good agreement with the experimental measurement.

Item Type:Article
Additional Information:Article n°115472
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)
French research institutions > IFP Energies Nouvelles - IFPEN (FRANCE)
Other partners > Total (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Funders:
HPC resources from CALMIP - CINES Occigen
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Deposited On:16 Oct 2020 06:46

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