[ehecboy]

Hello,


I am trying to simulate a 3 phase (steam, water and air) case in Fluent.

I am using the Euler-Euler model and the lee-model for the phase change.


Since the Euler-Euler-Model does not have a partial-pressure I am a bit confused.


At the beginning my domain has 100 % air in it and steam is injected. The walls are cold so the steam will condensate.



So should I consider the total-pressure for calculating the saturation temperature or the partial pressure of steam to calculate it? The partial pressure would be the volume fraction*total pressure.