Abstract

As mixing is an essential operation in many engineering fields a mixing system is designed using agitated vessels in which it is difficult to obtain accurate information on induced turbulence by the impeller where CFD can provide detailed understanding of such systems. Here the impeller is designed and tested in both single phase &multiphase. Here specifically incompressible flow is used and Multiple reference frame is used to model the motion of the impeller zone. Hence, we study the flow characteristics by comparing the velocity and temperature contour of three different rotating speed of the impeller and predict the percentage increase and decrease for varying boundary conditions.

Highlights

  • Mixing is an essential operation in many engineering fields

  • Naeeni and Pakzad [2] performed experiments in a droplet size distribution and mixing hydrodynamics in a liquid–liquid stirred tank by computational fluid dynamics (CFD) modelling they absorbed that in many industries mixing tank plays a leading role in liquid dispersion, in which simulation of mixing of water in crude oils in a mixing tank is equipped with Rushton turbine

  • The turbulent flow characteristics are understood by the information that is obtained

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Summary

Introduction

Mixing is an essential operation in many engineering fields. It has central significance in food processing, pharmaceutical production, chemical engineering, biotechnology, paint manufacturing, water purification among countless other applications. The mixing tank place a vital role in these applications for producing a homogenous mixing operation. Naeeni and Pakzad [2] performed experiments in a droplet size distribution and mixing hydrodynamics in a liquid–liquid stirred tank by CFD modelling they absorbed that in many industries mixing tank plays a leading role in liquid dispersion, in which simulation of mixing of water in crude oils in a mixing tank is equipped with Rushton turbine. The computational fluid dynamics (CFD) is coupled with population balance model (PBM) which is used to calculate the gas bubble size distribution

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