Measurement of Behavior of Bubbles Blown from Bottom of a Cylindrical Water Bath

Abstract

The technique of the quantitative flow visualization is applied to measure the behaviors of bubbles in a cylindrical bath which is agitated by a bottom blown bubbling jet. Rising velocities of bubbles, distributions of bubbles, flow directions around a bubble and distributions of gas-holdups etc. are measured. Without the technique, measurements of those quantities would be rather difficult, or some are impossible.