[Steve Fraser]

My problem is to examine how air pollution from an underground car park will affect occupants of the building above.

So, I've created a simulation in CFX 5 with two domains, one for the garage and one above ground, with two interfaces: one (pathway in) is the domain interface between the above ground and the garage; and the second pathway out. These are shown in the pdf attached. The flow is meant to be drawn through the open door down through the car park by four fans and exhausting from a chimney structure with brick vents on the outer wall.

The solver reports that there are 6 isolated regions. The error message suggests that the problem may lie with the domain interface setup, but I've checked and rechecked the setup. The model runs when the expert parameter for checking for isolated regions is set to f, but the solution is incorrect.

I'm totally stuck! and be grateful for help in getting the model to run correctly.

[rohansharmafree]

I can resolve your setup issue. Please contact me at rohansharmafree@gmail.com