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Compressible Orifice Shareware??

Compressible Orifice Shareware??

Compressible Orifice Shareware??

(OP)
I need to do some simple estimates of gas leaks from a pipe.  Is there any shareware that does compressible orifice calculations?  I don't need anything fancy, just some basic equations.
Thanks.

RE: Compressible Orifice Shareware??

see Thread798-51260, or get a copy of the following technical paper on choked (critical) flow thru thick walled square edged orifices:
by A.J. ward-Smith , Int J Heat Fluid v1 no 3 pp123-132 1979

RE: Compressible Orifice Shareware??

If you just need the equations, look in a copy of Crane technical paper 'flow of fluids through valves, fittings and pipe'.  For compressible fluid, there's an expansion term for the gas that you have to look up in a table so I can't just give you a simple equation as for non-compressible fluids.

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