What are the job opportunities in Building simulations? Where/how can we find some jobs about building simulations by using Airpak or Flovent? Which departments/firms are using these softwares? I am really interested in. (Or is it concerns only academical themes?)

There is no answer . Can we say that too low?

More likely this forum is not visited by HVAC engineers, even if they are using the tools you mention. These application specific tools allow engineers to focus on their discipline, not on the numerical aspects of CFD which is the mainstay of this forum.

Thanks for your reply @Dr. B. But I found this forum while I was searching airpak. Moreover some people are discussing about flovent and airpak? I don't know where I should ask this question? (which web site or forums)