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CFD-DEM simulations of solid-liquid flow in stirred tanks using a non-inertial frame of reference

Bastien Delacroix, Juliane Rastoueix, Louis Fradette, François Bertrand and Bruno Blais

Article (2021)

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Mixing applications operating in the laminar regime are used in numerous industrial processes in the pharmaceutical, chemical, and food industries. The aim of this paper is to introduce a numerical model adapted to solid-liquid mixing situations in stirred tanks. The method presented herein is based on a Euler-Lagrange approach using the CFD-DEM method. This method couples computational fluid dynamics (CFD) for the fluid with the discrete element method (DEM) for the solid particles. We introduce a rotating frame of reference approach, which is the first of its kind for CFD-DEM. In this paper we discuss the main issues related to the modeling of complex rotating impeller geometries, we explain the various issues involved in conducting a CFD-DEM simulation in a non-inertial frame, we compare our model with experimental results obtained with a pitched blade turbine and, lastly, we use our model to study solid-liquid mixing with a double helical ribbon.

Uncontrolled Keywords

CFD-DEM, Multiphase flows, Non-inertial frame, Single reference frame, Solid-liquid mixing, Close-clearance impeller

Subjects: 1800 Chemical engineering > 1800 Chemical engineering
Department: Department of Chemical Engineering
Research Center: URPEI - Research Center in Industrial Flow Processes
PolyPublie URL: https://publications.polymtl.ca/9149/
Journal Title: Chemical Engineering Science (vol. 230)
Publisher: Elsevier
DOI: 10.1016/j.ces.2020.116137
Official URL: https://doi.org/10.1016/j.ces.2020.116137
Date Deposited: 10 Sep 2021 13:43
Last Modified: 01 Sep 2023 09:57
Cite in APA 7: Delacroix, B., Rastoueix, J., Fradette, L., Bertrand, F., & Blais, B. (2021). CFD-DEM simulations of solid-liquid flow in stirred tanks using a non-inertial frame of reference. Chemical Engineering Science, 230. https://doi.org/10.1016/j.ces.2020.116137


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