Abstract

An approach is formulated that allows calculation of three types of surface and linear tensions in the region of contact angles of a three-aggregate system. A molecular theory for three-aggregate systems based on the lattice gas model (LGM) is used to calculate surface tension (ST) and linear tension (LT). It provides a uniform description of molecular distributions of mixture components inside three bulk phases in different aggregate states and three types of their interfaces. The calculations are based on the Gibbs definition of STs and LTs, derived by calculating the excess free energy determined from interfaces of the mentioned phases, and experimental data on the relaxation times of mass and momentum transfer processes. For simplicity of description, a general approach is formulated for interfaces with ideal geometry: planar and spherical. Under real conditions, solid phases are typically nonequilibrium because of hindered redistribution of components. Non-equilibrium analogs of equilibrium potentials must be developed to describe these. Diffusion-type kinetic equations for unary and pair distribution functions must be used to calculate their evolution. Distributions of components of mobile vapor and liquid phases adapt to the distribution of components in solid phases. Problems in calculating STs and LTs are discussed using the example of vapor–liquid phases in a solid-phase porous matrix.

中文翻译：

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三体系统接触角区域的线性和表面张力与松弛时间

摘要

制定了一种方法，该方法可以计算三聚合系统的接触角区域中的三种类型的表面张力和线性张力。基于晶格气体模型（LGM）的三聚集体系统分子理论用于计算表面张力（ST）和线性张力（LT）。它提供了对三个体相中不同聚集态及其界面类型的混合物成分的分子分布的统一描述。这些计算基于ST和LT的Gibbs定义，该定义是通过计算从所述相的界面确定的过量自由能以及有关质量和动量传递过程的弛豫时间的实验数据得出的。为了简化描述，为具有理想几何形状（平面和球形）的界面制定了一种通用方法。在实际条件下，由于组分的再分配受阻，固相通常不平衡。必须开发平衡电位的非平衡类似物来描述这些。一元和对分布函数的扩散型动力学方程必须用于计算其演化。流动气相和液相的组分分布适应固相中的组分分布。以固相多孔基质中的汽液相为例，讨论了计算ST和LT的问题。一元和对分布函数的扩散型动力学方程必须用于计算其演化。流动气相和液相的组分分布适应固相中组分的分布。以固相多孔基质中的汽液相为例，讨论了计算ST和LT的问题。一元和对分布函数的扩散型动力学方程必须用于计算其演化。流动气相和液相的组分分布适应固相中的组分分布。以固相多孔基质中的汽液相为例，讨论了计算ST和LT的问题。