Abstract
Bubbles are an essential mass and energy transport mechanism found in many industrial systems. The size of a bubble and time required for it to form impacts the efficiency of many systems. It has been observed that a surfactant added to an ebullient flow field reduces the departure size of the bubble and the formation time. Experiments and numerical simulations have been conducted to capture bubble growth with and without surfactants in an isothermal system. The results indicate that necking occurs more rapidly with a surfactant present. Final calculations have shown that the tangential velocity causes an increase in total pressure on the neck of the bubble. This additional force causes the neck to collapse more rapidly.
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