[Mojtaba.a]

Hello everyone.
I am trying to simulate a room with some inlets located on the top walls and some outlets on the side walls. Air has a velocity of 1 m/s at inlet patch. and some stuff are located inside the room. in other words i am trying to simulate an HVAC application. first I am using pisoFoam solver in order to have a reasonable pressure and velocity field. after that i will try to implement energy equation in order to solve for temperature field as well. But unfortunately i have stuck at first.
I am comparing my results with Fluent results. there is some problems with pressure field. Fluent results show that pressure varies from 0.9 to about 1.3 pa, but my values are much more less than that. they are at the range of 0 to 0.3 pa.
I have used zeroGradient for inlet and walls, and fixed value 0 for outlet.

Any suggestions would be appreciated ~
Mojtaba ~