Self-propelled sweeping removal of dropwise condensate [electronic resource].
- Washington, D.C. : United States. Dept. of Energy. Office of Science, 2015. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- Article numbers 221,601 : digital, PDF file
- Additional Creators:
- Oak Ridge National Laboratory, United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Dropwise condensation can be enhanced by superhydrophobic surfaces, on which the condensate drops spontaneously jump upon coalescence. However, the self-propelled jumping in prior reports is mostly perpendicular to the substrate. Here, we propose a substrate design with regularly spaced micropillars. Coalescence on the sidewalls of the micropillars leads to self-propelled jumping in a direction nearly orthogonal to the pillars and therefore parallel to the substrate. This in- plane motion in turn produces sweeping removal of multiple neighboring drops. The spontaneous sweeping mechanism may greatly enhance dropwise condensation in a self-sustained manner.
- Published through SciTech Connect., 06/02/2015., "KC0403040", "ERKCZ01", Applied Physics Letters 160 22 ISSN 0003-6951 AM, and Xiaopeng Qu; Jonathan Boreyko; Fangjie Liu; Rebecca L. Agapov; Nickolay V. Lavrik; Scott T. Retterer; Feng, James [University of British Columbia, Vancouver]; Pat Collier; Chuan-Hua Chen.
- Funding Information:
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