Experimental identification of the flow vortex structures generated in the agitated vessels

摘要

Mixing is a very important operation in chemical industry and process engineering because more than sixty percent of all processes are represented by mixing. The knowledge of the flow inside the agitated vessel is also the background for better understanding of the mixing processes, scale-up modelling, and geometry improvement. Here we present results obtained by TR PIV measurements focused on detailed flow analysis in two different regions in the context of impeller movement and processed with POD and OPD algorithms as well as flow development analysis. The agitated vessel fitted with standard Rushton turbine impeller was running in fully turbulent regime in water. Investigated areas were chosen according to the knowledge of the mean flow that should be examined under high frequency analysis to uncover fast moving flow structures.