Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
166307 | Chinese Journal of Chemical Engineering | 2016 | 9 Pages |
In this paper, the numerical predictions of 3D hydrodynamics and power consumption in a vessel stirred by multiple eccentrically located impellers are presented. The vessel is a flat-bottomed cylindrical one equipped with six-curved bladed impellers. Aqueous solutions of xanthan gum are used, which have a shear thinning behavior with yield stress. The influence of several parameters on the mixing efficiency has been investigated, namely: the stirring rate, fluid rheology, impeller number and impeller clearance from the tank bottom. Our predicted results are compared with other experimental data and a satisfactory agreement is found.
Graphical abstractFigure: Flow fields for Rey = 2000, No. 2 solution.Figure optionsDownload full-size imageDownload as PowerPoint slide