Issue 19, 2011
From the journal:

Soft Matter

Three dimensional aspects of droplet coalescence during dropwise condensation on superhydrophobic surfaces†

Konrad Rykaczewski,*a   John Henry J. Scott,a   Sukumar Rajauria,bc   Jeff Chinn,d   Amy M. Chinnd  and  Wanda Jonesd  

* Corresponding authors

a Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, USA
E-mail: konrad.rykaczewki@nist.gov

b Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD, USA

c Maryland Nanocenter, University of Maryland, College Park, MD, USA

d Integrated Surface Technologies, Inc., 1455 Adams Dr , Ste 1125, Menlo Park, CA, USA

Abstract

We report formation of nano-to-microscale satellite droplets in the geometrical shadow of high contact angle primary drops during dropwise water condensation on a nanostructured superhydrophobic surface (SHS). The primary drops contribute to the heat transfer process by sweeping up satellite droplets without covering their nucleation site and thus allow for rapid condensation of multiple droplets from the same site.

Graphical abstract: Three dimensional aspects of droplet coalescence during dropwise condensation on superhydrophobic surfaces

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Article information

DOI
https://doi.org/10.1039/C1SM06219K
Article type
Communication
Submitted
29 Jun 2011
Accepted
05 Aug 2011
First published
24 Aug 2011

Soft Matter, 2011,7, 8749-8752

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Three dimensional aspects of droplet coalescence during dropwise condensation on superhydrophobic surfaces

K. Rykaczewski, J. H. J. Scott, S. Rajauria, J. Chinn, A. M. Chinn and W. Jones, Soft Matter, 2011, 7, 8749 DOI: 10.1039/C1SM06219K

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