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Received October 22, 2010
Accepted December 17, 2010
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Experimental and computational fluid dynamics modeling of mixing by Visco-jet impellers
CFD Research Center, Chemical Engineering Department, Razi University, Kermanshah, Iran 1Faculty of Mechanical Engineering, College of Engineering and Petroleum, Kuwait University, Kuwait
Korean Journal of Chemical Engineering, June 2011, 28(6), 1372-1379(8), 10.1007/s11814-010-0522-y
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Abstract
This paper reports experimental and computational frluid dynamics (CFD) studies on an impeller called Visco-jet with the aim of finding the effect of two side diameters ratio of its blade, which has a semi-conical shape, on drawdown process of floating polymericparticles into high viscosity glycerin solution. Nine different geometries were examined experimentally, and there were significant differences in their performance. The results reveal that when diameter of smaller side of semi-cone impeller is half of the other side, mixing was performed in a more efficient way. The CFD-predicted results have been used for explaining the experimental observation. The CFD-predicted hydrodynamics parameters confirm superiority of this geometry compared with the other ones.
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References
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