Title:
POROUS SURFACES FOR DROPLET ACTUATION AND MOBILITY MANIPULATION USING BACKPRESSURE
Languages of Item:
English
Abstract:
In this study we explore the underlying mechanisms of droplet actuation and mobility manipulation, when backpressure is applied through a porous medium under a sessile pinned droplet. Momentum conservation and continuity equations along with the Cahn-Hilliard phase-field equations in a 2D computational domain are used to shed light on the on the droplet actuation and movement mechanisms. The droplet actuation mechanism entails depinning of the receding contact line and movement, by means of a forward wave propagation reaching on the front of the droplet. Eventually, the droplet is skipping forward.
Authors:
N. Vourdas
G. Pashos
G. Kokkoris
A.G. Boudouvis
V.N. Stathopoulos
Publisher:
University of Ioannina
Conference title:
7th Panhellenic Symposium on Porous Materials
Keywords:
wetting, droplet, porous, hydrophobic
Main subject category:
Science
