moisture flow in wall assembly
Hello, I am trying to study heat and moisture flow in a wall assembly with an insulated cavity. I'm using the species model, and setting the mixture as air and H2O. I know I have to provide a moisture mass fraction for the inlet, but I don't know how to do that. I don't have an inlet. My boundary conditions are an exterior and an interior surfaces with set temperature (set as walls). The only place where I can set the mass fraction is in the insulation cavity, but I want to see how the moisture coming in distributes in the insulation cavity, so it doesn't make sense to give initial conditions there. Any help with this is appreciated...
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