%0 Journal Article %T CFD simulation of flow patterns in unbaffled stirred tank with CD-6 impeller %A Devi Tamphasana Thiyam %A Kumar Bimlesh %J Chemical Industry and Chemical Engineering Quarterly %D 2012 %I Association of the Chemical Engineers %R 10.2298/ciceq111130029d %X Understanding the flow in stirred vessels can be useful for a wide number of industrial applications. There is a wealth of numerical simulations of stirring vessels with standard impeller such as Rushton turbine and pitch blade turbine. Here, a CFD study has been performed to observe the spatial variations (angular, axial and radial) of hydrodynamics (velocity and turbulence field) in unbaffled stirred tank with Concave-bladed Disc turbine (CD-6) impeller. Three speeds (N=296, 638 & 844.6 rpm) have been considered for this study. The angular variations of hydrodynamics of stirred tank were found very less as compared to axial and radial variations. %K CFD %K CD-6 impeller %K power number %K radial velocity %K stirred tank %U http://www.doiserbia.nb.rs/img/doi/1451-9372/2012/1451-93721200029D.pdf