Open AccessOn Influence of Liquids Viscosity on Drops Formation Regularities During Realization of Electrohydrodynamic Instability
Author(s) -
Anatoly I. Grigoriev,
S. O. Shiryaeva
Publication year - 2022
Publication title -
èlektronnaâ obrabotka materialov
Language(s) - English
Resource type - Journals
eISSN - 2345-1718
pISSN - 0013-5739
DOI - 10.52577/eom.2022.58.1.30
Subject(s) - electrohydrodynamics , drop (telecommunication) , corona discharge , viscosity , mechanics , capillary action , glow discharge , instability , meniscus , chemistry , plasma , thermodynamics , physics , optics , electrode , electrical engineering , incidence (geometry) , quantum mechanics , engineering
In a theoretical analytical way, the peculiarities of the influence of the viscosity of a liquid on its electro-dispersion, from the end of the capillary, through which the liquid is supplied to the discharge system, or during the decay of a strongly charged drop, were investigated. It was shown that when a low-viscosity liquid was electrodispersed, it emited highly charged small droplets, initially unstable with respect to its own charge, breaking up into a couple of ahundred even smaller and highly charged ones, around which a corona discharge wasignited. As a result, a fan-shaped glow appeared at the top of the meniscus of the liquid at the end of the capillary or at the top of the decaying charged drop. For a viscous fluid, a series of successive decays of charged daughter droplets were immediately interrupted due to the damping effect of viscosity after a single split in half and the formation of self-charge-resistant droplets, and no corona discharge flare was formed.