A Molecular Dynamics Study on Wetting Phenomena at a Solid Surface with a Nanometer-Scale Slit Pore

Abstract

Molecular dynamics simulations were conducted for the liquid wetting phenomena on a solid surface with a nanometer-scale slit pore using the Lennard-Jones potential. The objective was to investigate qualitatively how the width of the slit pore and the liquid–solid interactions influence the dynamic phenomena of the liquid molecules. The results showed that the intensity of the liquid molecule–solid atom interaction will determine whether or not the wetting phenomenon occurs (that is, whether the inside of the slit pore will be filled with liquid molecules within a definite period of time) and the characteristic time of the wetting phenomenon.

Keywords:

• molecular dynamics
• wetting phenomena

Acknowledgments

The author is grateful to Kozo Terashima, Toshimitsu Funayoshi, and Junichi Yoshida of Dainippon Screen Mfg. Co., Ltd., for supporting this work.