Performance of Helical Screw Impellers for Mixing of Viscous Liquids in Cylindrical Reactors

摘要

The efficiency of helical screw impellers for mixing viscous fluids in cylindrical reactors is determined in the present paper. The working media has a Newtonian behavior (the glycerol solution C3H8O3). Our main purpose is to provide a threedimensional numerical study of the influence of geometrical conditions on the mixing characteristics of helical screw impellers. It concerns the shaft eccentricity, the blade number and the blade length. The obtained results show that these parameters have a great influence on the energy consumption, flow structures and well-mixed region size.