Bubble formation in cocurrently upward flowing liquid

The effects of liquid velocity, nozzle diameter, gas chamber volume and gas flow rate on volumes, shapes and growth curves of bubbles formed at a nozz le submerged in a cocurrently upward flowing liquid in a bubble column were experimentally investigated. The bubble volume decreases with, increasing liquid flow velocity. The effect of liquid flow velocity on the volume of b ubble increases with an increase in the gas flow rate. To simulate bubble f ormation at a nozzle submerged in cocurrently upward flowing liquid, a revi sed non-spherical bubble formation model was proposed. Bubble volumes, bubb le growth curves and shapes experimentally obtained in this study, as well as;in previous experimental studies, are well predicted by the present mode l.