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Open Engineering

formerly Central European Journal of Engineering

Editor-in-Chief: Ritter, William

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CiteScore 2017: 0.70

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Hydrodynamics in a vessel stirred by simple and double helical ribbon impellers

Houari Ameur / Mohamed Bouzit / Abdellah Ghenaim
Published Online: 2012-12-29 | DOI: https://doi.org/10.2478/s13531-012-0045-x


The present paper treats the agitation of shear thinning fluids in a cylindrical unbaffled vessel with a flat-bottom. Two kinds of impellers have been used: simple and double helical ribbons. This work is achieved with the help of CFD package (CFX-12.0), which is based on the finite volume method to solve the continuity and momentum equations. The effect of impeller rotational speed, fluid rheology, impeller size, impeller clearance from the tank bottom on the flow fields and power consumption have been investigated. Finally, a comparison between the two impellers is made. It was found that the best performance is obtained with double helical ribbon impeller placed at the middle of the tank, with moderate blade size and operating at Re g > 20. Our results have been compared with those of other literatures and a satisfactory agreement is observed.

Keywords: Helical ribbon impeller; Shear thinning fluid; Numerical computation; Hydrodynamic; Power consumption; Stirred vessel

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About the article

Published Online: 2012-12-29

Published in Print: 2013-03-01

Citation Information: Open Engineering, Volume 3, Issue 1, Pages 87–98, ISSN (Online) 2391-5439, DOI: https://doi.org/10.2478/s13531-012-0045-x.

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© 2012 Versita Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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