[alex_gtz]

Hi everyone,

I am simulating airflows within a swimming pool building. I had some good results, with a air temperature of 27°C as desired.

Then, I decided to implement the humidity. --I have already done that previously and it worked fine -- I activate the Species Transport Equation, with volumetric reaction, eddy dissipation and mixture template as settings. Options : Inlet Diffusion.

For the BC I put the specific humidity as H2O mass fraction (inlet, pool interface and outlet).

After running the simulation, my air temperation has dropped and is now 15°C. I don't understand why the Species Transport is affecting the temperature.

Any help is very much appreciated