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Directional motion of dielectric droplets on polymer-coated conductor driven by electric corona discharge

Li, Guoliang and Pan, Junheng and Zheng, Huai and Liu, Sheng and Tang, Jau (2019) Directional motion of dielectric droplets on polymer-coated conductor driven by electric corona discharge. Applied Physics Letters, 114 (14). Art. No. 143701. ISSN 0003-6951. https://resolver.caltech.edu/CaltechAUTHORS:20190502-100852495

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Abstract

Achieving better control of liquid droplet movement is an important subject for academic research and industrial applications. In this study, we investigate the use of electric corona discharge to drive and control oil droplet movement. For a fully covered polymer-coated copper plate, all droplets on the surface were found to move outward in the same direction. Interestingly, for a polymer coating a hole directly beneath a needle biased with a high DC voltage, we observed the existence of a zone boundary at which all of the droplets within the boundary move inward, whereas droplets outside the boundary move outward. The boundary appeared to depend on the hole size and the voltage bias. Our model simulations reasonably agree well with the experimental measurements of these peculiar phenomena.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1063/1.5089296DOIArticle
ORCID:
AuthorORCID
Li, Guoliang0000-0003-0063-1585
Liu, Sheng0000-0001-6033-078X
Tang, Jau0000-0003-2078-1513
Additional Information:© 2019 Published under license by AIP Publishing. Submitted: 18 January 2019; Accepted: 26 March 2019; Published Online: 10 April 2019. This work was financially supported by the National Natural Science Foundation of China (Northwest Key Scientific Facility, Grant No. 51727901).
Funders:
Funding AgencyGrant Number
National Natural Science Foundation of China51727901
Issue or Number:14
Record Number:CaltechAUTHORS:20190502-100852495
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190502-100852495
Official Citation:Directional motion of dielectric droplets on polymer-coated conductor driven by electric corona discharge. Guoliang Li, Junheng Pan, Huai Zheng, Sheng Liu, and Jau Tang. Applied Physics Letters 2019 114:14; doi: 10.1063/1.5089296
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95168
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 May 2019 17:19
Last Modified:02 Apr 2020 16:24

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