Effect of Column Diameter on the Volume of Bubble Formed from a Submerged Single Orifice

Abstract

The effect of column diameter on the volume of bubble formed from a submerged single orifice in the presence of pressure fluctuations in the gas chamber is investigated experimentally and it is found that the wall effect on bubble volume depends on gas chamber volume. By considering the inertia of liquid caused by the upward movement of liquid, the two-stage model of bubble formation accompanied by pressure fluctuations in the gas chamber proposed by the authors is extended to the model of bubble formation with wall effect. The calculated bubble volume by this extended model coincide qualitatively well with the experimental results.
It is clarified that the smaller the column diameter, the more markedly is bubble volume influenced by liquid height.