Modelling Of Microbubble Coalescence
Author(s)
Y. Yonemoto & T. Kunugi
Abstract
The mechanism of bubble coalescence/repulsion is still unclear and is a key issue
when it comes to numerical research on multiphase flows. Experimental studies
have revealed that not only the concentration of the electrolytes dissolved in
water but also the existence of ion pairs play an important role in bubble
coalescence, which indicates that the contamination at the interface has an
important effect on bubble interaction. In the present study, a coalescence model
is developed; it is based on the conventional nucleation theory correlated with
the electric conductivity originating due to the contamination of the liquid.
Simple microbubble interactions are simulated using the coalescence model.
Finally, we succeed in simulating the duration of contact before the coalescence
of two microbubbles.
Keywords: multiphase flow, interfacial phenomena, microbubble, nucleation
theory, coalescence.
Keywords
Keywords: multiphase flow, interfacial phenomena, microbubble, nucleation
theory, coalescence.
Related Book
Other papers in this volume
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