Determining actual phase velocity for flow hydrodynamics modeling in centrifugal apparatus packing

Abstract

This paper presents the results of a performance study of nozzle centrifuges designed to optimize mass transfer processes under centrifugal field conditions. The study includes an analysis of the design features of the apparatus, such as the geometry of the nozzles and rotors, and their influence on the efficiency of phase separation. A theoretical framework based on the Bernoulli equation and similarity criteria (Froude, Reynolds and Weber) is presented and adapted to describe the hydrodynamics of two-phase flows. Experimental data show that the use of X-shaped and wave-shaped nozzles helps to reduce phase slippage and increase apparatus performance. The developed dependencies for calculating the actual circumferential flow velocity can be used for numerical simulation and further optimization of centrifugal apparatus design.