Hi all:

Below are some situations always puzzle me:

1. If you modify the Floor's Z-axis coordinate like this , you
will find the 2 floors has been separated, but the calculation result
didn't show any different.

2. As above, you can also move some wall like this, there is still
no different.

3. But , if you directly delete this wall, the result show
different.

The questions are :

1. Absolutely from the 1st situation, we can see that the software
can't judge if the two space are adjacent from the coordinate, is that
right? Further , how should the software judge if two spaces adjacent?

2. If there is a hole on the wall, I don't think the software
should deal with it as natural ventilation, so , how should the software
to deal with it?

3. If some wall been deleted as 3rd situation, the software still
can be run, so I think there should be some default boundary conditions,
and which should be the default boundary condition?

I have used this software half of one year, but I can't sure if my
calculation result is right, I think I need a higher level to understand
this software.

Any suggestions would be appreciated.

I have learn a lot from you guys ,Thank you.

Joey

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Joey Jiao