Choked Flow at Orifice For Water
Choked Flow at Orifice For Water
(OP)
Hello,
What is the determination of "choked" flow of an orifice in water applications? Is it where the velocity of the water reaches sonic velocity? Or is there another scenario about choked flow?
Is there a calculation to determine choked flow through an orifice for incompressible fluids?
Thanks.
What is the determination of "choked" flow of an orifice in water applications? Is it where the velocity of the water reaches sonic velocity? Or is there another scenario about choked flow?
Is there a calculation to determine choked flow through an orifice for incompressible fluids?
Thanks.





RE: Choked Flow at Orifice For Water
Good luck,
Latexman
RE: Choked Flow at Orifice For Water
RE: Choked Flow at Orifice For Water
RJB32482:
Read this this Wikipedia article:
http://en.wikipedia.org/wiki/Choked_flow
Especially this paragraph:
If the fluid is a liquid, a different type of limiting condition (also known as choked flow) occurs when the Venturi effect acting on the liquid flow through the restriction decreases the liquid pressure to below that of the liquid vapor pressure at the prevailing liquid temperature. At that point, the liquid will partially "boil" into bubbles of vapor and the subsequent collapse of the bubbles causes cavitation. Cavitation is quite noisy and can be sufficiently violent to physically damage valves, pipes and associated equipment. In effect, the vapor bubble formation in the restriction limits the flow from increasing any further.
References:
http://www
ht
Milton Beychok
(Visit me at www.air-dispersion.com)
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RE: Choked Flow at Orifice For Water