Abstract
A mathematical model is developed to describe the bubble formation from a gas outflowing through microholes into a liquid. The model is valid over wide ranges of gas-flow rates, gas/liquid pressure drops, and the thermophysical properties of the liquid. The calculated results agree well with the observed data. A model is proposed to characterize the hydrodynamics of and mass transfer in laminar liquid flow in a coaxial mass-transfer apparatus with a gas-permeable inner tube. Numerical data are reported for the effect of the operating parameters of the mass-transfer apparatus with a specified matrix (inner tube) microstructure on the bubble- size distribution and the volume concentration of bubbles in the liquid.
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