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A semi-implicit immersed boundary method and its application to viscous mixing

Bruno Blais, Manon Lassaigne, Christoph Goniva, Louis Fradette and François Bertrand

Article (2016)

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Cite this document: Blais, B., Lassaigne, M., Goniva, C., Fradette, L. & Bertrand, F. (2016). A semi-implicit immersed boundary method and its application to viscous mixing. Computer & Chemical Engineering, 85, p. 136-146. doi:10.1016/j.compchemeng.2015.10.019
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Computational fluid dynamics (CFD) simulations in the context of single-phase mixing remain challenging notably due the presence of a complex rotating geometry within the domain. In this work, we develop a parallel semi-implicit immersed boundary method based on Open∇FOAM, which is applicable to unstructured meshes. This method is first verified on academic test cases before it is applied to single phase mixing. It is then applied to baffled and unbaffled stirred tanks equipped with a pitched blade impeller. The results obtained are compared to experimental data and those predicted with the single rotating frame and sliding mesh techniques. The proposed method is found to be of comparable accuracy in predicting the flow patterns and the torque values while being straightforwardly applicable to complex systems with multiples impellers for which the swept volumes overlap.

Uncontrolled Keywords

Computational fluid dynamics; Immersed boundary method; Single rotating frame technique; Sliding mesh technique; MixingOpen∇FOAM

Open Access document in PolyPublie
Subjects: 1800 Génie chimique > 1800 Génie chimique
Department: Département de génie chimique
Research Center: URPEI - Unité de recherche en procédés d'écoulements industriels
Funders: CRSNG/NSERC, CRSNG/NSERC - Vanier Scholarship, Canada Foundation for Innovation (CFI), Ministère de l’Économie, de l’Innovation et des Exportations du Québec (MEIE), RMGA, Fonds de recherche du Québec – Nature et technologies (FRQ-NT)
Date Deposited: 11 Aug 2021 17:31
Last Modified: 22 Oct 2021 16:46
PolyPublie URL: https://publications.polymtl.ca/9064/
Document issued by the official publisher
Journal Title: Computer & Chemical Engineering (vol. 85)
Publisher: Elsevier
Official URL: https://doi.org/10.1016/j.compchemeng.2015.10.019


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