I recommend

to shift to HB/LB in order to use only opensource software.

https://www.youtube.com/user/chrismackey88/playlists

For cfd you may try it

https://www.youtube.com/channel/UCHXaKLlZRQxkSG6dD6ZWvSg

https://www.performance.network/courses/openstudio-cfd-training-using-butterfly

Cheers