How to set indoor and outdoor air pressure difference and air leakage rate

[Masoud Valinejad]

As an assignment my prof wants u to compare three kinds of wall. I am supposed to set "the actual indoor and outdoor air pressure difference is about 5 Pa, and you can assume the air leakage rate as 0.3 L/s.m2", but I don't know where I should set in software (WUFI pro).
Could you please help me?

[mpazold]

in WUFI Pro (and also in WUFI Plus) you can set 'Sources, Sinks' in the assembly edit form. There you can select and put a air change source in the assembly. You can fine more information about this if you search for 'air change source' in the WUFI Pro help.