Abstract
Numerical simulations of solid-liquid mixing in a stirred tank with an improved Intermig impeller were performed by adopting standard κ-ε turbulence model coupled with Eulerian granular multiphase model. An unsteady sliding mesh approach was used to simulate the impeller rotation. The flow field, solids hold-up and power consumptions were investigated in the solid-liquid mixing system. Compared to the standard Intermig impeller, the improved Intermig impeller coupled with the special sloped baffle could promote the fluid circulation, creating better solid suspension and consuming lesser power.
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