Surface tension analysis of clusters aggregation based on Eötvös rule
Yixiong Yang, Zhijie Han, Mingliang Xie, Song-tao Ji · Journal of Physics Conference Series · 2025
Abstract The Eötvös rule affords a quantitative description of the temperature-dependent surface tension. This study examines the surface tension of water clusters through the population balance equation, which is similar to the Eötvös rule. Molecular dynamics simulations were used to measure the correlation between surface tension and temperature in water clusters within two distinct systems: water-air and water-water. The Optimal Point Charge model for water molecules was employed to obtain a more accurate assessment of surface tension and surface free energy. Additionally, the statistical characteristics of the clusters were analyzed to clarify the complex interplay between the surface tension of the clusters and their fractal architecture and confirm the validity of the results.