Hydrodynamic Comparative Study on the Pumping Effects of a Square Tank Equipped with Single-Stage and Bi-Stage Impellers

Abstract A computational fluid dynamics simulation is done for comparative study from the pumping effect on four surfaces of stirred tank. The flow field generated by one-stage and bi-stage six-bladed Rushton turbine in unbaffled square tank was studied. Reynolds-averaged Navier-Stokes equation with steady-state multi-reference frame approach (MRF) used to simulate hydrodynamic turbulent viscosity, kinetic energy mean velocity distributions obtained vertical horizontal plans are analyzed discussed. We can deduce that additional upper part improves quality mixture.