Modelling Large Indoor Spaces to get Granular Temperature Distribution

[prateek_patankar]

Hello everyone,

My problem is in essence simple. I want to model a large building(~ 100*60*30 m). It is highly glazed (~ 42% of outside area). It is completely empty from the inside. But because of the large size of the building, I would like to know the temperature of specific parts of the building, so I have created rooms, with all their internal adjacencies set as 100 % holes.
I am modelling the HVAC system as a simple ApSys system, as I am only interested in the conditions within the building, and not the energy requirements.
Unfortunately, in reality, the inlets and outlets for my HVAC system will be located at positions in the building, which in my simulation will be located in different rooms.
Moreover, I would like to also be able to model the thermal stratification, for which I also need to split the building into rooms with 100 % holes, as I have done.
How can I model this system, such that I can provide HVAC air supply to one room, and it also affects all the other rooms in its vicinity, as there are no walls in between? Currently when I do this, it shows a very large temperature difference between adjacent rooms, which does not seem plausible