Fragmentation instabilities of a liquid drop falling in a miscible fluid
Authors: Buah-Bassuah P.K., Residori S., Arecchi F.T.
Autors Affiliation: Laser and Fibre Optics Centre, Department of Physics, University of Cape Coast, Cape Coast, Ghana; Institut Non Linéaire de Nice, 1361 Route des Lucioles, Valbonne-Sophia Antipolis, France; Physics Department, University of Florence, CNR-Istituto Nazionale di Ottica Applicata, Largo Enrico Fermi 6, Florence, Italy
Abstract: We report a set of experimental investigations on the break-up of a liquid drop when falling in a miscible solvent, with the density difference being positive, or negative, or zero. Non-dimensional numbers, derived from the characteristic times of the drop evolution, account for the hydrodynamic instabilities and the self-similar character of the fragmentation process. The role of the initial surface tension at the air-drop interface is explored, leading to scaling laws for the drop volume V and the various height h reached by the drop before it fragments into smaller droplets. From the first break-up to the onset of diffusion, the fragmentation process is shown to have a fractal structure, which is associated to universal power laws for h and V during the dynamical processes associated to the break-up phenomena.
Journal/Review: AFRICAN REVIEW OF PHYSICS
Volume: 9 Pages from: 53 to: 61
KeyWords: Technology; Steel; Vortex ringsCitations: 1data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2019-09-15References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here