2005•Chinese Journal of Chemical EngineeringRequires access

CFD Simulation of Mixing in a Stirred Tank with Multiple Hydrofoil Impellers

Jian Min, Zhengming Gao, Litian Shi

Abstract

The mixing process in a stirred tank of 0.476m diameter with single, dual and triple 3-narrow blade hydrofoil CBY impellers was numerically simulated by using computational fluid dynamics (CFD) package FLUENT6.1. The multi-reference frame (MRF) and standard k-e turbulent model were used in the simulation. The shaft power and the mixing time predicted by CFD were in good agreement with the experiment. The effects of tracer feeding and detecting positions on mixing time were investigated. The results are of importance to the optimum design of industrial stirred tank/reactors.

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Key concepts: Computational fluid dynamics, Impeller, Mixing (physics), Mechanics, Continuous stirred-tank reactor, Turbulence, Computer simulation, Power (physics)