Self-Propulsion of Boiling Droplets on Thin Heated Oil Films
Name
PhysRevLett.127.074502.pdf
Description
Published version
Size
865.15 KB
Format
Unknown
Checksum (MD5)
6f637235aa6029599439ed87b238d4d8
Author(s)
Leon, Victor Julio
Varanasi, Kripa K
Date Issued
August 2021
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Leon, Victor Julio and Varanasi, Kripa K. 2021. "Self-Propulsion of Boiling Droplets on Thin Heated Oil Films." Physical Review Letters, 127 (7).
Version
Final published version
Abstract
We report on the self-propulsion of boiling droplets which, despite their contact with viscous, immiscible oil films, attain high velocities comparable to those of levitating Leidenfrost droplets. Experiments and model reveal that droplet propulsion originates from a coupling between seemingly disparate short and long timescale phenomena due to microsecond fluctuations induced by boiling events at the droplet-oil interface. This interplay of phenomena leads to continuous asymmetric vapor release and momentum transfer for high droplet velocities.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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.127.074502
