[xavi]

Hi,
I have a transient simulation which has two volumes separated by a wall (door) which at some point of the simulation open and let the air pass through them from one domain to the other. The problem is that when I run the simulation with the doors closed (surfaces as walls) there are 2 volumes each one with one velocity inlet and pressure outlet, and the mass balance is unstable and doesn’t converge. When doors are open so then there is only one domain the convergence is excellent. Does anyone knows if FLUENT can operate with two domains at the same time? Any solutions? Many thanx