A Study on Liquid-liquid Mixing in a Stirred Tank with a 6-Blade Rushton Turbine

Zadghaffari, R.; Moghaddas, J.S.; Revstedt, J.

A Study on Liquid-liquid Mixing in a Stirred Tank with a 6-Blade Rushton Turbine

Document Type : Full article

Authors

R. Zadghaffari ¹

J.S. Moghaddas ¹

J. Revstedt ²

¹ Transport Phenomena Research Center, Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran.

² Faculty of Engineering, Lund University Division of Fluid Mechanics, Lund, Sweden.

Abstract

The turbulent flow field generated in a baffled stirred tank was computed by large eddy simulation (LED) and the flow field was developed using the Sliding Mesh (SM) approach. In this CFD study, mixing times and power number have been determined for a vessel agitated by a 6-blade Rushton turbine. The predicted results were compared with the published experimental data. The satisfactory results of comparisons indicate the potential usefulness of this approach as a computational tool for designing stirred reactors.

Keywords

CFD

Stirred tank

Mixing time

Power

LES

MRF