Micro droplets generated on a rising bubble through an oppositely charged oil/water interface
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The mass transfer between immiscible two-liquid phases can be greatly enhanced by bubbling gas through a reactor. Numerous micro water droplets breaking out from a ruptured water film around a rising bubble through the oil (upper phase)/water (lower phase) interface were demonstrated in the preceding paper (Uemura et al. in Europhys Lett 92:34004, 2010). In this study, we attempt to oppositely charge the oil and water layers, taking into account the findings of the preliminary study (Uemura et al. in J Vis 13:85, 2010). As a result, this study successfully produces more and finer water droplets than the preceding experiments.
KeywordsBubble Immiscible two-liquid interface Ripple Electric field High-speed photography
Supplementary Movie 1 (2.62 Mb)
Supplementary Movie 2 (1.93 Mb)