Study of blades inclination influence of gate impeller with a non-Newtonian fluid of Bingham

Study of blades inclination influence of gate impeller with a non-Newtonian fluid of Bingham

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A large number of chemical operations, biochemical or petrochemical industry is very depending on the rheological fluids nature.In this work, we study the case of highly viscous of viscoplastic fluids in a MARSHMALLOWS SMALL classical system of agitation: a cylindrical tank with plate bottom without obstacles agitated by gate impeller agitator.We are interested to the laminar, incompressible and isothermal flows.We devote to a numerical approach carried out using an industrial code CFD Fluent 6.3.

26 based on the method of finites volumes discretization of Navier - Stokes equations formulated in variables (U.V.P).The Full Sleigh Bed w/Storage threshold of flow related to the viscoplastic behavior is modeled by a theoretical law of Bingham.The results obtained are used to compare between the five configurations suggested of power consumption.

We study the influence of inertia by the variation of Reynolds number.