CFD Simulation of Solid-Liquid Stirred Tank with Rushton Turbine and Propeller Impeller

Stirred tanks have applications in many chemical processes where mixing is important for the overall performance of the system. In present work 5%v of the tank is filled by solid particles with diameter of 700 m that Rushton Turbine and Propeller impeller is used for stirring. An Eulerian-Eulerian Multi Fluid Model coupled and for modeling rotating of impeller, moving reference frame (MRF) technique was used and standard-k-
model was selected for turbulency. Flow field, radial velocity and axial distribution of solid for both of impellers was investigation and comparison. Comparisons of simulation results between Rushton Turbine and propeller impeller shows that final quality of solid-liquid slurry in different rotating speed for propeller impeller is better than the Rushton Turbine.

Authors:

• M. H. Pour
• V. M. Nansa
• M. Saberi
• A. M. Ghanadi
• A. Aghayari
• M. Mirzajanzadeh

Keywords:

• CFD
• Particle Velocity
• Propeller Impeller
• Rushton Turbine.

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