Natural Ventilation

[kparekh]

hello,
In vista we are getting air volume flow in & Flow out for per opening. How to generate total volume flow in & out for whole space if it has no. of openings??

[huntervu28]

Refer "Natural Vent" parameter in Vista

[kparekh]

But it always shows flat graph...
opening schedules are already given... but it doesn't work..
is there any other method to read out..?