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how to model natural convection in a room

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Old   September 5, 2012, 08:50
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Flavio
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Hi everybody,
I am modelling a room with a heat source: what about the property of the air? Should I use IDEAL GAS LAW (Incompressible) or piecewise linear (or polinomial)?
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Old   June 6, 2014, 07:25
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Hi everyone,

I am doing a similar study, the difference is that i have one door between the interior and the exterior of room.
In my case the temperatura inside the room is about 278,15K and outside the room is 298,15K.
I want to study the temperature change inside the room, as the door opens, due to the natural convection.
For the exterior i choosed the boundary conditions as Pressure Outlet and to the room were adiabatic walls.
But until now i can't obtain results, can somebody help me?
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