Axisymmetric bubble pinch-Off at high reynolds numbers
Abstract
Analytical considerations and potential-flow numerical simulations of the pinch-off of bubbles at high Reynolds numbers reveal that the bubble minimum radius, rn, decreases as τrn2-lnrn2, where τ is the time to break up, when the local shape of the bubble near the singularity is symmetric. However, if the gas convective terms in the momentum equation become of the order of those of the liquid, the bubble shape is no longer symmetric and the evolution of the neck changes to a rnτ1/3 power law. These findings are verified experimentally. © 2005 The American Physical Society.
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Depósito de investigación de la Universidad de Sevilla https://idus.us.es/ "This document is the Accepted Manuscript version of a Published Work that appeared in final form in Physical Review copyright © American Physical Society after peer review and technical editing by the publisher. To access the final edited and published work see 10.1103/PhysRevLett.98.144503.