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dependence of orifice length on pressure drop

dependence of orifice length on pressure drop

dependence of orifice length on pressure drop

(OP)
Haqy

i am searching the dependence of orifice discharge coefficient on orifice length (what is the change of dicharge coefficient on different orifice lengths)
for example : at given flow, orifice diameter and pressure drop change orifice length. what is the flow change?
is there some equation?

thank you

RE: dependence of orifice length on pressure drop

Hooper uses the permanent pressure drop from a thin, sharp orifice as a basis and then applies a multiplier to correct for the L/D ratio. He gives an equation for the multiplier that is valid for 0.05 < L/D < 5.

The reference is : William B. Hooper, Calculate Head Loss Caused by Change in Pipe Size, Chemical Engineering, Nov 7, 1988, pgs 89-92.

Katmar Software - AioFlo Pipe Hydraulics
http://katmarsoftware.com

"An undefined problem has an infinite number of solutions"

RE: dependence of orifice length on pressure drop

Are you speaking of orifice thickness or the distance/position of the pressure taps? It's not clear to me which it is.

Good luck,
Latexman

Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers

RE: dependence of orifice length on pressure drop

(OP)
I am speaking of orifice length not tap position.

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