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Effect of conductivity on the mechanism of charge ejection in Rayleigh breakup of a charged drop
Journal
Journal of Electrostatics
ISSN
03043886
Date Issued
2022-05-01
Author(s)
Gawande, Neha
Mayya, Y. S.
Thaokar, Rochish
Abstract
A critically charged drop is known to undergo Rayleigh fission by forming oppositely directed symmetric jets, which further disintegrate into progeny droplets. In this work, we present numerical simulations based on the axisymmetric boundary integral method and show that the electrical conductivity of the droplet not only affects the characteristics of the progeny droplets but also modifies the mode of drop breakup. It is observed that, at higher conductivity, the droplet undergoes fission by jet detachment from the mother drop, losing higher charge, while at lower conductivity, the jet relaxes back after ejecting a few progeny droplets that carry a lower charge.
Subjects