Molecular dynamics simulation of film water thickness and properties at different interfaces in partially saturated frozen soil systems.

ABSTRACT: The film water, with an exceptional capacity to maintain a premelting, liquid-like state even under subzero conditions, provides a potential dynamic conduit for the movement of water in frozen soils. However, the distinctive structural and dynamic characteristics of film water have not been comprehensively elucidated. In this study, molecular dynamics (MD) simulations were conducted to examine the freezing of a system containing ice, water, silica, and gas. The simulations revealed that as the temperature approaches the melting point, the air-water interface tends to possess a thicker layer of unfrozen water, characterized by a higher diffusion coefficient and lower viscosity. In contrast, the film water near the silica-water interface tends to be thinner and remains relatively unaffected

SUBMITTER: Ji S 

PROVIDER: S-EPMC11742411 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature