Beginner,looking for programs
 

Hello all, I am new to this field and I was hoping that someone might be able to help me decide what CFD program (commercial or otherwise) would be applicable for my purposes. I work in the HVAC field and have been tasked to find a program or programs that would be able to model the airflows for large rooms/multiple rooms. I really appreciate anything that you may be able to help with. Thank you, JP