and Philippe Bournot

Publications

1 CFD Study of Turbine Submergence Effects on Aeration of a Stirred Tank

Authors: Hatem Mhiri, Achouri Ryma, Hatem Dhaouadi, and Philippe Bournot

Abstract:

For many chemical and biological processes, the understanding of the mixing phenomenon and flow behavior in a stirred tank is of major importance. A three-dimensional numerical study was performed using the software Fluent, to study the flow field in a stirred tank with a Rushton turbine. In this work, we first studied the flow generated in the tank with a Rushton turbine. Then, we studied the effect of the variation of turbine’s submergence on the thermodynamic quantities defining the flow field. For that, four submergences were considered, while maintaining the same rotational speed (N =250rpm). This work intends to optimize the aeration performances of a Rushton turbine in a stirred tank.

Keywords: CFD, Mixing, Submergence, aeration, Rushton Turbine

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