Inlet slot for rooms

myting

Hi,

at first sorry for my bad english...

However, I want to use OpenFOAM for simulation. I am engineer for HVAC and I am to interesset in simulation for airflows in building rooms but my experiment crashed in OpenFOAM everytime :-(

I make a room with one block and every side is a wall function. Furthermore I make two blocks on the side of a wall. One block is for the inlet slot and the other for the outlet slot. My question is: When I make the block for inlet slot I am defining one patch of the block as the inlet patch and the other 5 side are walls? If am not defining the other side, the simulation stops because of "empty patches".

Maybe can somebody give me excample for simulation inlet slot in 3D rooms? It whould help me.

Thanks
Myting