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https://doi.org/10.3938/NPSM.67.1124
Lattice Boltzmann Study on Droplet Behavior
New Physics: Sae Mulli 2017; 67: 1124~1128
Published online September 29, 2017;  https://doi.org/10.3938/NPSM.67.1124
© 2017 New Physics: Sae Mulli.

Kiduk KIM, Kisang BYUN, Joonkyung JANG*

Department of Nanoenergy Engineering, Pusan National University, Busan 46241, Korea
Correspondence to: jkjang@pusan.ac.kr
Received July 31, 2017; Revised August 25, 2017; Accepted August 25, 2017.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The lattice Boltzmann method (LBM) allows various fluid behaviors such as phase separation, evaporation, condensation, heat transfer, and surface-liquid interactions to be modeled. LBM is useful in fluid computations because it can easily construct porous materials and complex structures to calculate the flow of a fluid in the system and has many other advantages. In this study, we investigated the contact angles and the sliding angle of water for varying surface energies on the substrate. We also investigated the formation of a water meniscus between the probe and the substrate, which is relevant to dip-pen nanolithography. In the contact angle and the sliding angle investigations, the contact angle depended on the surface energy, and a very low sliding angle was observed. We also observed that a water meniscus formed between the probe and the substrate.
PACS numbers: 05.20.Dd, 68.08.Bc, 66.20.Cy, 61.20.-p, 68.08.-p
Keywords: Lattice Boltzmann method, Superhydrophobic, Water meniscus, Sliding angle, Contact angle


September 2017, 67 (9)