Scaling laws for drop impingement on porous films and papers
Name
Joung-2014-Scaling laws for drop.pdf
Size
2.34 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Buie, Cullen R.
Joung, Young soo
Date Issued
January 2014
Journal
Physical Review E
Publisher
American Physical Society
Citation
Joung, Young Soo, and Cullen R. Buie. “Scaling Laws for Drop Impingement on Porous Films and Papers.” Phys. Rev. E 89, no. 1 (January 2014). © 2014 American Physical Society
Version
Final published version
Abstract
This study investigates drop impingement on highly wetting porous films and papers. Experiments reveal previously unexplored impingement modes on porous surfaces designated as necking, spreading, and jetting. Dimensional analysis yields a nondimensional parameter, denoted the Washburn-Reynolds number, relating droplet kinetic energy and surface energy. The impingement modes correlate with Washburn-Reynolds number variations spanning four orders of magnitude and a corresponding energy conservation analysis for droplet spreading shows good agreement with the experimental results. The simple scaling laws presented will inform the investigation of dynamic interactions between porous surfaces and liquid drops.
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/PhysRevE.89.013015
