Effects of interface contamination on mass transfer into a spherical bubble
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2015-01-01
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Abstract
A numerical study has been conducted to investigate the effects of contamination on mass transfer into a spherical bubble. The influence of the contamination on the mass transfer inside the bubble was studied for different ranges of dispersed phase Reynolds numbers (0.1 < Red < 10), Schmidt numbers (0.7<Sc <5) and different values of the polar angle cap ?, characterizing the extent of a rigidΘ cap at the rear of the bubble (Θ cap = 0°, 30°, 60°, 90°, 120°, 150° and 180°). The results show that the flow and the concentration profiles are strongly dependent on the Reynolds number, the Schmidt number and the stagnantΘ cap angle (Θ cap).