A Comparative Study of Two Mechanical Agitated System in Case of Non-Newtonian Fluids


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Abstract


In this work the characterization of hydrodynamic fields of incompressible yield stress fluid with regularization model of Bercovier and Engelman in a cylindrical vessel not chicaned equipped with circular anchor stirrer was undertaken by means of numerical simulation using computational fluid dynamics. Simulations flow of a Bingham fluid agitated by straights blades anchor was used to validate the rheological model implemented of the fluid treated. The flow structures, and especially the effect of inertia, the plasticity and the yield stress, are discussed. We have analyzed also the influence of rheological parameters on the hydrodynamic flow behaviours, such as the velocity components and the global characteristic like power consumption.
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Keywords


Mixing; Stirred Vessel; Anchor Impeller; Yield Stress; Computational Fluid Dynamics (CFD)

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References


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