CFD Modeling of Active Volume Creation in a Non-Newtonian Fluid Agitated by Submerged Recirculating Jets

Wu, B, Kennedy, S, Eshtiaghi, N and Parthasarathy, R 2018, 'CFD Modeling of Active Volume Creation in a Non-Newtonian Fluid Agitated by Submerged Recirculating Jets', Chemical Engineering and Technology, vol. 41, no. 7, pp. 1441-1447.


Document type: Journal Article
Collection: Journal Articles

Title CFD Modeling of Active Volume Creation in a Non-Newtonian Fluid Agitated by Submerged Recirculating Jets
Author(s) Wu, B
Kennedy, S
Eshtiaghi, N
Parthasarathy, R
Year 2018
Journal name Chemical Engineering and Technology
Volume number 41
Issue number 7
Start page 1441
End page 1447
Total pages 7
Publisher Wiley-VCH Verlag
Abstract Computational fluid dynamics (CFD) models were employed to investigate flow conditions inside a model reactor in which yield stress non-Newtonian liquid is mobilized using submerged recirculating jets. The simulation results agree well with the experimental results of active volume in the reactor obtained using flow visualization by the authors in a previous study. The models developed are capable of predicting a critical jet velocity (vc) that determines the extent of active volume obtained due to jet mixing. The vc values are influenced both by the rheological properties of the liquid and the nozzle orientation. The liquid with higher effective viscosity leads to higher vc for a downward facing injection nozzle. However, an upward facing injection nozzle along with a downward facing suction nozzle generates enhanced complementary flow fields which overcome the rheological constraints of the liquid and lead to lower vc. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Subject Chemical Engineering Design
Rheology
Keyword(s) Cavern formation
Computational fluid dynamics
Iso-surface
Jet mixing
Non-Newtonian liquid
DOI - identifier 10.1002/ceat.201700323
Copyright notice © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN 0930-7516
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