Dear all

I want to use the code to compute the airflow for both indoor and outdoor. However, I feel the grid generation is a big problem for me since indoor airflow is connected with outdoor by window and door. Which method should I use? any kind suggestion are welcome.

Thank you in advance

Take a look at the paper, "The study of active stack effect to enhance natural ventilation using wind tunnel and computational fluid dynamics (CFD) simulations", by Nyuk Hien Wong and Sani Heryanto in Energy and Buildings