Thickness distribution of molecularly thin liquid film over surface with two dimensional sinusoidal roughness by using molecular dynamics

Abstract

Using the molecular dynamics method has simulated three-dimensional molecule distribution and meniscus formation on surfaces having two-dimensional sinusoidal roughness. Argon molecules were selected both for liquid/gas molecules moving at a constant temperature of 84K or 99K and stationary solid molecules for solid surfaces. It is observed that molecules are apt to pile up around valley portion and molecule arrangement becomes weaker on the rough surface. The radius of curvature of meniscus cross section are found to vary with the interaction of solid surface molecules and liquid molecules indicating verification of the present simulation.