Contact Angle for Spherical Nanodroplet in Cylindrical Cavity with Quadratic Curve Generatrix
- Ai-Jun Hu
- Bao-Zhan Lv
Wetting of a spherical nanodroplet in smooth and homogeneous cylinder surface rotated by quadratic curve was studied by methods of thermodynamics. The solid-liquid-vapor system was separated into six parts using Gibbs method of dividing surface. The system free energy was calculated. A generalized Young equation for the equilibrium contact angle is proposed taking the line tension effects into consideration. On the basis of some assumptions, this generalized Young equation is the same as the classical Young’s equation.
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