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Blending of Newtonian and Shear-Thinning Fluids in a Tank Stirred with a Helical Screw Agitator

Aubin, Joelle and Naude, Isabelle and Bertrand, Joël and Xuereb, Catherine Blending of Newtonian and Shear-Thinning Fluids in a Tank Stirred with a Helical Screw Agitator. (2000) Chemical Engineering Research and Design, vol. 7 (n°8). pp. 1105-1114. ISSN 0263-8762

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Official URL: http://dx.doi.org/10.1205/026387600528382

Abstract

Newtonian and non-Newtonian laminar fluid flow has been simulated using Computational Fluid Dynamics for a cylindrical vessel stirred by a helical screw agitator. Simulations have been performed for a vessel geometry with and without a draft tube. Simulated flow patterns in the vessel have been examined and compared with the experimental work of previous authors. The power number and the circulation number have been evaluated, and interpreted in a similar manner to other works. The PO.Re constant, A, has been determined to be 295 for the geometry with the draft tube and 150 for that without the draft tube. These results are in the same range as previously reported values. The Metzner and Otto constant, k, has been evaluated to be 16.23 which is in excellent agreement with experimental results reported in the literature.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com Chemical Engineering Research and Design homepage : http://www.elsevier.com/wps/find/journaldescription.cws_home/713871/description#description
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratory name:
Laboratoire de Génie Chimique - LGC (Toulouse, France) - Réaction, mélange & séparation (RMS)
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Deposited By: Joelle Aubin-cano
Deposited On:03 Feb 2009 11:41

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