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Fragment formation in the break up of a drop falling in a miscible liquid
Authors: Arecchi, F.T. (F.T.)
Buah-Bassuah, P.K. (P.K.)
Perez-Garcia, C. (C.)
Keywords: Materias Investigacion::Física
Issue Date: 1991
Publisher: European Physical Society
ISSN: 0295-5075
Citation: Europhys Lett, 15 (4), pp. 429-434
When falling in a lighter miscible solvent, a drop of liquid deforms to a torus which then breaks up into several fragments or just disappears by diffusion. By using liquids of different compositions we show the universal behaviour of the phenomenon, and its dependence on two nondimensional numbers, the fragmentation number F, and the Schmidt number S. While F marks the transition from diffusion to splitting, here we show the role of S in controlling the number of horizontal fragments after the first break-up. The process is explained in terms of competitions of different time scales.
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