The present research article presents numerical simulations of rotating of Newtonian fluid mixing flows in a cylindrical container through single rotating stirrer with agitator, where stirrer is located on the lid of container in concentric position. For this purpose a Quasi 3D (Three-Dimensional) FEA (Finite Element Algorithm) has been developed. The numerical algorithm is based on fractional stages semiimplicit Taylor-Galerkin/Pressure-Correction scheme. The simulation has been carried out to analyze the effects of agitator on mixing behavior. The numerical results show that Quasi 3D FEA is an accurate mathematical tool and able to achieve good results for flow structure in laminar regime. Finite Element Method, Newtonian Fluid. T he mixing behavior of Newtonian fluid has been investigated in a cylindrical container which is relevant to industrial applications. Industrial problems are very complex to handle, mainly related to the manufacturing of good homogenized mixture. For instance, granular mixing processes [1-2], mixing of toothpaste in industries [3], mixing of dough in food processing industries [4-5], manufacturing of paper by mixing of paper-pulp in paper producing industries [6] and many other mixing processes like paints [7] are very difficult problems in industries. An agitator is an apparatus attached with stirrer to bring fluid into motion by stirring. The use of agitator ensures optimal mixingand homogenization of fluids. The present study investigates this behavior through predicting the flow structure, velocity gradient and pressure differential. 1.
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