[StevenD]

I have no idea where to start and wondering if some kind soul could point me in some sort of direction.
I would like to model the vaporization/concentration of a liquid spilled in a hallway that has a known air exchange rate. (Example: spill 8 ounces of alcohol in a 10x10x100 foot hallway with a ventilation system recirculating air at 1200CFM).
I would like know the different vapor concentrations while modifying the volumes and air exchange rates.

I have looked into using OpenFOAM, but the software seems daunting (at this time I have not even figured which solver would be best). I am looking into tutorials that would help, but have not found one that remotely describes my situation.

Questions:
Is OpenFOAM overkill for this type of simulation?
Is there something simpler/better for my application?
What solver would be best?

I don't mind doing the work, I just can't find a starting point. Thanks for any help.

Steven