Self-propulsion of small droplets on thin liquid films

Author(s)
Leon, Victor Julio.
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Massachusetts Institute of Technology. Department of Mechanical Engineering.
Advisor
Kripa K. Varanasi.
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Abstract
In this thesis, we investigate the self-propulsion of small droplets below the capillary length on thin liquid films. At film temperatures above the boiling point of the droplet and lower film viscosities, we observe that droplets can propel at velocities up to 16cm/s. We predict the droplet velocities using a model that scales thin oil film viscous friction to the momentum of the vapor ejected from beneath the boiling droplet.
Description
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2019
 
Page 48 plank. Cataloged from PDF version of thesis.
 
Includes bibliographical references (pages 44-47).
 
Date issued
2019
URI
https://hdl.handle.net/1721.1/123745
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Publisher
Massachusetts Institute of Technology
Keywords
Mechanical Engineering.
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