I am trying to do a convective heat transfer and have created the internal flow region and boolien the solid. But I have trouble understanding how I am able to select windows, walls, occupants if the geometry that will be used is the internal flow region geometry (the negavtive space) instead of the original model.
I am looking at the meeting room thermal comfort analysis. Does it mean I have to create the saved selections first so I can easily create the boundary conditions ?
Hi @h_tai0220201, thanks a lot for posting at our forum 
Creating the saved selections should be a great idea!
Make sure to select people, furniture, etc. and apply to each the corresponding boundary condition.
Try following the exact steps in this tutorial, as I think they might be relevant to you.
Best,
Igor
I have been following this tutorial, it took me quite a while to understand what it meant. So far I followed all the instructions and have looked into the sample project but I still have trouble running the simulation. According to the errors, it is the boundary conditions.
If I am working with the flow region, how can I select the saved selections from the original geometry? or should I create save selections based on the flow region?