Journal
COMPUTERS & CHEMICAL ENGINEERING
Volume 85, Issue -, Pages 136-146Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compchemeng.2015.10.019
Keywords
Computational fluid dynamics; Immersed boundary method; Single rotating frame technique; Sliding mesh technique; Mixing; Open del FOAM
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
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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. (C) 2015 Elsevier Ltd. All rights reserved.
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