2005•Journal of Thermal Science and TechnologyRequires access
Bubble formation from submerged orifice in viscous liquid
Hong Liu
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Abstract
The continuous emission process of gas bubbles under a constant gas flow rate through a single orifice immersed in a quiescent viscous liquid is studied. Based on the overall force balance acting on the bubble a semi empirical model for the spherical bubble growth is presented to predict the bubble size evolution at the detachment stage. The predicted bubble size are in good agreement with experimental results. The effects of surface tension force, gas flow rate, orifice diameter and property of liquid are analyzed.