[ShaneDowney]

Hello Everyone,

I trying to run a simulation within fluent involving an enclosure regulated to 3%RH at 23oC. On the enclosure are two openings to a ambient room with 30%RH at 18oC. Inside the enclosure (3%RH) I have included a velocity inlet on the roof of diameter 100mm and an entrance velocity which will vary.

What I am trying to simulated is a positive pressure environment with a measure on the amount of 30%RH ingress from the atmosphere into the enclosure. ideally so I can determine the best flow rate of 3%RH to use and the optimal positioning of inlet duct on the enclosure and also the leakage rate of pressure to the room.

I have modelled it currently using a 2 phase VOF with species transport. phase1 being 30%RH at 18oC and phase2 being 3%RH at 23oC0, the determined mass fraction of water vapour are 0.00386 and 0.00052 respectively.
I am unsure with how to model the two ambient room openings (phase1), would this be as another two velocity inlet? or would it be as a pressure outlet?