air evacuation flow rate help
air evacuation flow rate help
(OP)
I'm trying to do a calc to determine the flow velocity expected during evacuation of a dry laminate layup under vacuum bag prior to resin infusion.
i guess i can simplfy the problem down to... sealed chamber volume (0.32 m3) initialy at atmospheric pressure connected to a 200m3/hr pump via 25mm ID pipe.
any tips would be great - can i use benouli or does the flow choke (i have vague memory of this being an issue from uni dayz!)
i guess i can simplfy the problem down to... sealed chamber volume (0.32 m3) initialy at atmospheric pressure connected to a 200m3/hr pump via 25mm ID pipe.
any tips would be great - can i use benouli or does the flow choke (i have vague memory of this being an issue from uni dayz!)





RE: air evacuation flow rate help
Sounds like a noble project. Keep us posted.