Hi, I am trying to simulate condensation of water in air.
I am using the shan-chen multi-phase multi-component model in order to achieve this. The goal ultimately is to study the effect of condensation in fuel cell membranes.
I am struggling a bit with some physical concepts.
Modelling water/vapour makes sense to me and I have successfully used the single-component multi-phase model to simulate condensation of water bubbles in vapour.
Taking air into consideration it becomes a bit more difficult. Basically the air contains vapour so the air is actually random gases + vapour so these are two components. The vapour itself consists of two phases vapour and liquid. Ultimately I want to show how condensation causes water droplets to form. However due to the nature of the multi-component model all I seem to get is separation of the two components (basically fluid-fluid separation). How do I within the H20 fluid distinguish between vapour and liquid?