Coalescence of bubbles and drops in an outer fluid View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2014-01-24

AUTHORS

Joseph D. Paulsen, Rémi Carmigniani, Anerudh Kannan, Justin C. Burton, Sidney R. Nagel

ABSTRACT

When two liquid drops touch, a microscopic connecting liquid bridge forms and rapidly grows as the two drops merge into one. Whereas coalescence has been thoroughly studied when drops coalesce in vacuum or air, many important situations involve coalescence in a dense surrounding fluid, such as oil coalescence in brine. Here we study the merging of gas bubbles and liquid drops in an external fluid. Our data indicate that the flows occur over much larger length scales in the outer fluid than inside the drops themselves. Thus, we find that the asymptotic early regime is always dominated by the viscosity of the drops, independent of the external fluid. A phase diagram showing the crossovers into the different possible late-time dynamics identifies a dimensionless number that signifies when the external viscosity can be important. More... »

PAGES

3182

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/ncomms4182

DOI

http://dx.doi.org/10.1038/ncomms4182

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1042948336

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/24458225


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