Numerical Simulation of Particle Mixing Feature for a Gas-Liquid-Solid Three Phase Flow in an Impeller-Driven Stirred Vessel

In this work, numerical simulations have been conducted to investigate the particle mixing feature in a stirred vessel driven by an impeller. The Eulerian multi-fluid model has been employed along with the standard k–ε turbulence model to simulate the gas-liquid-solid three-phase flow in the stirred vessel. The effects of impeller speed and immersion depth of impeller on the particle distribution are discussed. The results show that the particle volume fractions nearby the vessel bottom are large on the vicinity of the side walls of the vessel and small in the vessel middle region at different impeller speeds and immersion depths.