By Topic

Energy and hydrodynamic analyses of coalescence-induced jumping droplets

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Nam, Youngsuk ; Kyung Hee University, Yongin 446-701, South Korea ; Kim, Hyunsik ; Shin, Seungwon

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.4825273 

We report our dynamic analysis of coalescence-induced jumping on superhydrophobic surfaces with a full 3D numerical model supported with experiments. The analysis shows that approximately half (40%–60%) of the released surface energy during the coalescence is converted to kinetic energy before the detachment starts. The rapid increase in the kinetic energy at the beginning is initiated from low pressure associated with the high negative curvature of a liquid bridge. The asymmetric nature of the droplet evolution with a superhydrophobic wall generates high pressure at the bottom, which provides driving force to make the merged droplet spontaneously jump from the wall.

Published in:

Applied Physics Letters  (Volume:103 ,  Issue: 16 )