Abstract:

he turbulent flow field generated in a baffled stirred tank with a Rushton turbine was computed by large eddy simulation（LES）.The dynamic subgrid model was used to model the unresolved scalesThe spatial discretization of the governing equations was performed on a cylindrical staggered gridThe momentum and continuity equations were discretized by the finite difference method with a third order QUICK scheme for the convective termsThe interaction between rotating impeller and static baffles was accounted for through the improved innerouter iterative algorithmThe phaseresolved predictions were compared with the experimental data of references and good agreement was observed both for mean resolved fields and turbulence quantities.