Visualizations of Flow Behavior, Mixing Process and Dispersion Phenomena in Multiphase Fluids in a Stirred Vessel

(Using Computational Fluid Dynamics and Electrical Resistance Tomography Methods)

Abstract

It is very difficult or impossible to apply optical measuring methods to multiphase fluids, such as solid-liquid, gas-liquid and liquid-liquid systems, in order to clarify their flow behavior, mixing process, and dispersion state in a stirred vessel, due to the opacity of such systems. Computational fluid dynamics (CFD) and the electrical resistance tomography method (ERT), which are introduced in this article, are very powerful and useful for analyzing such systems. Investigation results using both methods are also discussed.