Using MixSim, mixing tank analysis is made easier. MixSim accepts the input of the tank dimensions, baffle number and dimensions, a number of the internals, including coils, draft tubes, and a choice of impeller from an extensive library of equipment vendor mixers and data from the BHR Groups FMP data . These brief examples of stirred tank configurations were setup in MixSim. The impeller geometries are courtesy of Chemineer Inc. and Lightnin Inc . The axial velocity contours are displayed below the impeller.
Red indicates upward flow while blue indicates downward flow.
Pathlines released from the impeller-swept surface immediately below the impeller are shown, colored by velocity magnitude. CFD illustrates the regions of poor mixing Axial velocity contours in the mid-baffle plane. CFD analysis identifies regions of vigorous mixing and weak or poor mixing. As shown in the graphics, contour and vector plots, and particle animation can be used to visualize the gross mixing patterns in the stirred tanks. Quantitative analysis of the power draw, thrust, pumping rate, mixing time, circulation and residence time distributions , and more can be obtained from the CFD solution.