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Enhanced attraction between drops carrying fluctuating charge distributions

Ambaum, M. ORCID:, Auerswald, T., Eaves, R. and Harrison, G. (2021) Enhanced attraction between drops carrying fluctuating charge distributions. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. ISSN 1364-5021 (In Press)

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To link to this item DOI: 10.1098/rspa.2021.0714.R1


The electrostatic force between conductive spheres is always attractive at small separations, irrespective of their mean charge, when the charge on the spheres is constant. In many situations, the charge may not be fixed, such as for water drops in the natural atmosphere which vary in size and charge. We show that the attractive force between charged conductive spheres increases with increasing charge variance. The importance of this unrecognized electrostatic effect between water drops is evaluated for its potential to enhance rain formation.

Item Type:Article
Divisions:Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
ID Code:102191
Publisher:Royal Society Publishing

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