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Abstract

Preliminary to mass transfer studies, studies of bubble shape and area during formation and of velocity of rise after formation were made for nitrogen bubbles in water and two hydrocarbon oils.

Bubble profiles were found to fit an empirical equation of the form rnθ = 1 where r and θ are polar coordinates.

Quantative studies of bubble volume and area as a function of time are reported.

A limited correlation for the velocity of rise of a chain of bubbles in a viscous oil is presented.