Calling All Fluid Dynamicists

I have been "mulling" over the fluid loss through a .040" dia. orifice @ 30 psi (injected Lyc), for a restrictor fitting, IF there is a failure downstream.

With my (very) limited skill set, I am wondering if some of you in the business would indulge my curiosity and come up with an estimate of 100LL loss/unit of time through one of these fittings if it somehow it became open on the exit side - through a failure of a downstream component. Sorry about the long, wordy, single sentence.

Thank you in advance - HFS

Always wondered that myself. Same thing goes for oil pressure.

Making some assumptions

Just over 1.2 gpm

Edit = Sorry. About 0.20 gpm. First stab I used a #40 drill hole rounded to 0.10". The #40 drilled hole size was in my brain from a previous instrument sense line snubber thread.

Jpm757 said:

Always wondered that myself. Same thing goes for oil pressure.

Click to expand...

If you are ONLY talking about lines to pressure senders, you can use an excessive flow valve after the restrictor, that would close with flows that exceed the restriction.

It varies with the length of the restrictor's hole, roughly linearly.

And beta ratio, and discharge coefficient, and….