Ejection of Droplets from a Bursting Bubble on a Free Liquid Surface—A Dimensionless Criterion for “Jet” Droplets
2018
Mead-Hunter, Ryan | Gumulya, Monica M. | King, Andrew J. C. | Mullins, Benjamin J.
This work examines the ejection of droplets from a bursting gas bubble on a free liquid surface, both experimentally and numerically. We explore the physical processes which govern the bursting of bubbles and the subsequent formation of “jet” droplets. We present new relationships regarding the dependence of jet drop formation on bubble diameter. Furthermore, we propose a new dimensionless parameter to describe the region of properties where “jet” drops will occur. This parameter, termed the droplet number (Dn), complements existing parameters defining jet drop formation, namely, a maximum Ohnesorge number and a maximum Bond number.
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