Wetting characteristics of a water droplet on solid surfaces with various pillar surface fractions under different conditions

A numerical study was carried out using a molecular dynamics program to examine the wetting characteristics of nano-sized water droplets on surfaces with various pillar surface fractions under different conditions. Square-shaped pillars had surface fractions that increased from 11.1 % to 69.4 %. The...

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Bibliographic Details
Published in:Journal of mechanical science and technology 2018, 32(4), , pp.1593-1600
Main Authors: Yoo, Min Jung, Ambrosia, Matthew Stanley, Kwon, Tae Woo, Jang, Joonkyung, Ha, Man Yeong
Format: Article
Language:English
Subjects:
Attraction
Contact angle
Control
Dynamical Systems
Engineering
Industrial and Production Engineering
Mechanical Engineering
Molecular dynamics
Solid surfaces
Surface energy
Vibration
Water chemistry
Water drops
Wetting
기계공학
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Summary:A numerical study was carried out using a molecular dynamics program to examine the wetting characteristics of nano-sized water droplets on surfaces with various pillar surface fractions under different conditions. Square-shaped pillars had surface fractions that increased from 11.1 % to 69.4 %. The pillars had 4 different heights and 3 different surface energies. When the pillar surface fraction changed, the contact angle of a water droplet also changed due to the attraction between the droplet and the pillar surface or the inner attraction of the water molecules. The pillar height also has different effects on the water droplet depending on the magnitude of surface energy.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-018-0314-6