Mitigating jitter in droplet stream by uniform charging

Monodisperse droplets induced by Plateau–Rayleigh instability of liquid jet are widely applied. Due to spatial jitter, the spacing between droplets becomes uneven as the working distance increases. We found that the jitter can be ameliorated by uniformly charging the droplets. Under the electrostati...

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Bibliographic Details
Published inPhysics of fluids (1994) Vol. 34; no. 11
Main Authors She, Lei, Fang, Yanshen, Hu, Liang, Su, Rui, Fu, Xin
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.11.2022
Subjects
Charging
Droplets
Vibration
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Summary:Monodisperse droplets induced by Plateau–Rayleigh instability of liquid jet are widely applied. Due to spatial jitter, the spacing between droplets becomes uneven as the working distance increases. We found that the jitter can be ameliorated by uniformly charging the droplets. Under the electrostatic forces, the droplets align at uniform spacing over a long distance. Nevertheless, radial jitter emerges when the charging voltage is too high. The effect of charging on the jitter was modeled and validated by experiments. A recommended charging parameters configuration is given considering a trade-off between axial and radial jitter to obtain evenly distributed droplets.
ISSN:1070-6631
1089-7666
DOI:10.1063/5.0129057