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Trying to create flow restrictions in a HVAC duct

Question asked by Robert Peperkamp on Apr 21, 2019

Hi all,


I am currently trying to simulate a car fire and subsequently the performance of a HVAC system in ventilating smoke and other tracers


Issue I have is I have 3 open inlets to the duct, but I wish to restrict the flow through them so that they all have sufficient suction, because at the moment with them all open only the closest inlet gets all the suction while the others don't get any at all


Openings and desired flow rate restrictions are in the photo attached, any help on the matter would be greatly appreciatedUntitled.png