Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study of Characteristics of Water Droplets on Various Nanoscale Structures Using Molecular Dynamics

분자동역학을 이용한 다양한 구조물 위의 수액적의 특성에 대한 연구

  • Lee, Kwang Ho (School of Mechanical Engineering, Pusan Nation University) ;
  • Kwon, Tae Woo (School of Mechanical Engineering, Pusan Nation University) ;
  • Ha, Man Yeong (School of Mechanical Engineering, Pusan Nation University)
  • Received : 2017.07.14
  • Accepted : 2017.11.17
  • Published : 2018.01.10
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Abstract

This study numerically investigated statistic and dynamic behaviors of the water droplet on plate with or without various structured-pillars at nano-scale by molecular dynamics simulation. This study considered smooth plate, plate with the rectangular-structured pillar, and the plate with dual-structured pillar under various characteristic energy conditions. The static behavior of water droplet depending on the plate shape, plate surface energy, and the pillar characteristics were examined. After the water droplet reaches its steady state, this study investigated the dynamic behavior of the water droplet by applying a constant force. Finally, this study investigated the static and dynamic behaviors of the water droplet by measuring its contact angle and contact angle hysteresis. As a result, we found that the structure was more hydrophobic.

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References

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