Superficial Reynolds number for two phase flow

enthusiast · March 9, 2022, 04:35

Hi Fomers, I am trying to validate interFoam solver for two phase flow in a pipe, but had trouble calculating the velocities of 2 phases using the provided Reynolds number.

My test case is a pipe of 10mm diameter and 1.5m length. Re(liquid) = 6000 and Re(gas) = 832.

Can someone please provide your valuable suggestion on how I can find the velocity of 2 phases using the available Reynolds number?

I have attached the URL of the research paper and also the fluid properties.

https://www.researchgate.net/profile...G-OPENFOAM.pdf

fluid_properties.png

piu58 · March 14, 2022, 07:54

The text gives superficial Re numbers.

The superficial value of Re is the one that each phase would have if the flow of that phase were flowing through the channel by itself.

March 9, 2022, 04:35	Superficial Reynolds number for two phase flow	#1
enthusiast New Member Akshay Join Date: Jan 2020 Posts: 28 Rep Power: 6	Hi Fomers, I am trying to validate interFoam solver for two phase flow in a pipe, but had trouble calculating the velocities of 2 phases using the provided Reynolds number. My test case is a pipe of 10mm diameter and 1.5m length. Re(liquid) = 6000 and Re(gas) = 832. Can someone please provide your valuable suggestion on how I can find the velocity of 2 phases using the available Reynolds number? I have attached the URL of the research paper and also the fluid properties. https://www.researchgate.net/profile...G-OPENFOAM.pdf fluid_properties.png

March 14, 2022, 07:54		#2
piu58 Senior Member Uwe Pilz Join Date: Feb 2017 Location: Leipzig, Germany Posts: 744 Rep Power: 15	The text gives superficial Re numbers. The superficial value of Re is the one that each phase would have if the flow of that phase were flowing through the channel by itself. joshwilliams likes this. __________________ Uwe Pilz -- Die der Hauptbewegung überlagerte Schwankungsbewegung ist in ihren Einzelheiten so hoffnungslos kompliziert, daß ihre theoretische Berechnung aussichtslos erscheint. (Hermann Schlichting, 1950)

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