论文标题
超临界区域中相互作用颗粒的二元不对称混合物的行为
Behavior of a binary asymmetric mixture of interacting particles in the supercritical region
论文作者
论文摘要
我们提出了一种描述由两种粒子组成的系统的相行为的方法。每个物种的相互作用都通过包含排斥和有吸引力的成分的相互作用势来描述。每种相互作用势的不同值确保了不对称性。在零模式近似中计算二进制混合物的宏伟分区函数，临界点线（对应于组件的不同比例），计算出相互作用电位参数的特定值。我们获得了将引入的混合参数X与流体浓度相关联的方程式。二进制混合物压力的明确表达是根据相对温度和混合参数x的函数得出的，以绘制widom线。已经确定，对于此参数的边界值（x = 0和x = 1），混合物的状态方程变成了其独立物种的状态方程。
We propose a method for describing a phase behavior of a system consisting of particles of two sorts. The interaction of each species is described by interaction potentials containing the repulsive and attractive components. Asymmetry is ensured by different values of the interaction potentials of each sort. The grand partition function of a binary mixture is calculated in the zero-mode approximation A line of critical points, which correspond to different proportions of the components, is calculated for specific values of parameters of the interaction potential. We have obtained an equation that relates the introduced mixing parameter x with the concentration of the fluid. An explicit expression of the pressure of the binary mixture is derived as a function of relative temperature and mixing parameter x to plot the Widom line. It is established that for boundary values of this parameter (x = 0 and x = 1), the equation of state of a mixture turns into equations of state of its separate species.
