Stability Limit of Electrified Droplets
Name
PhysRevLett.122.244501.pdf
Description
Published version
Size
311.66 KB
Format
Adobe PDF
Checksum (MD5)
ad5d4d25192e2ab7b503c41540244924
Author(s)
Beroz, J.
Hart, A. J.
Bush, John W. M.
Date Issued
June 2019
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Beroz, J. et al. "Stability limit of electrified droplets." Physical Review Letters 122, 24 (June 2019): 244501 © 2019 American Physical Society
Version
Final published version
Abstract
In many physical processes, including cloud electrification, electrospray, and demulsification, droplets and bubbles are exposed to electric fields and may either remain whole or burst in response to electrical stresses. Determining the stability limit of a droplet exposed to an external electric field has been a long-standing mathematical challenge, and the only analytical treatment to date is an approximate calculation for the particular case of a free-floating droplet. Here we demonstrate, experimentally and theoretically, that the stability limit of a conducting droplet or bubble exposed to an external electric field is described by a power law with broad generality that, in practice, applies to the cases in which the droplet or bubble is pinned or sliding on a conducting surface or free floating. This power law can facilitate the design of devices for liquid manipulation via a simple formula that captures the parameter range of bubbles and droplets that can be supported on electrified surfaces. Keywords: drop & bubble phenomena; drop breakup; wetting; drops & bubbles
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Mathematics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/physrevlett.122.244501
