Fluid Dynamics in a Continuous Pump-Mixer

The fluid dynamic (flow rates) and hydrodynamic behavior (local droplet size distributions local holdup) of a continuous DN300 pump-mixer were investigated using water as the phase paraffin oil dispersed phase. influence impeller speed (N = 375 to 425 rpm), feed ratio (φF 10 30 vol.-%), flow rate (V˙tot ≈ 0.5 2.3 L/min) by measuring pumping height, holdup disperse phase, distribution (DSD). latter one was measured at three different vessel positions an image-based telecentric shadowgraphic technique. diameters extracted from acquired images neural network. Sauter mean calculated DSD correlated with extended model based on Doulah (1975), considering speed, ratio, additionally rate. new correlation can describe extensive database containing 155 experiments within 15% error range.