The axial plane of the tank, which is being modelled, is divided into small control volumes, which collectively is referred to as the mesh, or grid. This work presents a detailed computational fluid dynamics (CFD) approach to study the behaviour of stirred vessels using anchor impellers. Since this range of viscosity describe highly viscous flows, the reactions for anchor agitated systems are normally carried out under laminar flow. The viscosity is normally in the range 1000-10000 cp. Anchor impellers are used specially for highly viscous flow, typical of polymer reactions. The great majority refers to turbine impellers, specially Rushton turbines, under turbulent flow. Despite its importance in chemical industries, there are few works which studies anchor type impellers and only a fraction of the works investigate these systems under a computational approach.
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