Jump to main content
Jump to site search

Issue 43, 2016, Issue in Progress
Previous Article Next Article

Droplet migration during condensation on chemically patterned micropillars

Author affiliations

Abstract

We demonstrate the migration of small water droplets from the side wall of a micropillar onto its top surface during dropwise condensation without application of an external force. The observed droplet migration occurs due to the difference in wettability between the hydrophobic sides and hydrophilic top surfaces of the micropillars imposed by a novel fabrication process. The movement of condensate from the pillars' side walls onto their tops is suggested as a method for shifting condensate from a Wenzel to a Cassie-Baxter state to promote droplet detachment. In this communication, we also emphasize the use of combined surface texturing and wettability patterning to prompt the migration of condensate on pillars for the effective design of surfaces for high condensation heat transfer performance.

Graphical abstract: Droplet migration during condensation on chemically patterned micropillars

Back to tab navigation

Supplementary files

Publication details

The article was received on 11 Feb 2016, accepted on 04 Apr 2016 and first published on 06 Apr 2016


Article type: Communication
DOI: 10.1039/C6RA03862J
Citation: RSC Adv., 2016,6, 36698-36704
  •   Request permissions

    Droplet migration during condensation on chemically patterned micropillars

    D. Orejon, O. Shardt, P. R. Waghmare, N. S. Kumar Gunda, Y. Takata and S. K. Mitra, RSC Adv., 2016, 6, 36698
    DOI: 10.1039/C6RA03862J

Search articles by author

Spotlight

Advertisements