D132 Numerical Simulation of Phase Separation Behavior in a Binary Fluid Mixture Layer Subjected to Vertical Temperature and Concentration Gradients

Abstract

A mathematical model for phase separation of a binary mixture layer subjected to a vertical temperature gradient spanning the critical temperature and initially a vertical concentration gradient was developed in this study. Then, the effects of their gradients and convection driven by chemical potential gradient-induced capillary force on the phase separation structures were numerically investigated. As a result, it was shown that a stripe, a droplet, a bicontinuous or a horizontal two-layer structure appears depending on the magnitudes of the temperature and concentration gradients and convection.