摘要
Based on statistical mechanics for classical fluids, the general expressions for the elastic moduli of inhomogeneous fluid are derived and expressed as functionals of density functions. Within the framework of classical density functional theory, the bulk modulus of confined argon in slit pore is calculated under different conditions. The effects of vapor pressure, temperature, and pore width on modulus are calculated and investigated. Obvious confinement-induced effect has been observed in the confined argon. In addition, the solvation pressure dependence of the bulk modulus is also investigated,and the results suggest that the Tait–Murnaghan equation is still valid for the confined fluids.
Based on statistical mechanics for classical fluids, the general expressions for the elastic moduli of inhomogeneous fluid are derived and expressed as functionals of density functions. Within the framework of classical density functional theory, the bulk modulus of confined argon in slit pore is calculated under different conditions. The effects of vapor pressure, temperature, and pore width on modulus are calculated and investigated. Obvious confinement-induced effect has been observed in the confined argon. In addition, the solvation pressure dependence of the bulk modulus is also investigated,and the results suggest that the Tait–Murnaghan equation is still valid for the confined fluids.
作者
Zong-Li Sun
Yan-Shuang Kang
Yan-Mei Kang
孙宗利;康艳霜;康艳梅(Science and Technology College,North China Electric Power University;College of Science,Hebei Agricultural University;University of International Relations)
基金
supported by the National Natural Science Foundation of China(Grant No.21503077)
the Fundamental Research Fund for the Central Universities of China(Grant No.2016MS156)
the Research Project from Hebei Education Department,China(Grant No.QN2018119)
