Mass Flow Rate of individual Phases in interFoam

snnaveen15 · February 14, 2018, 01:22

Hi Foamers,
I am trying to model a air pump using interFoam, Need to calculate mass flow rate of individual phases at outlet, the system has one inlet with air and the second inlet is water (but air and water can go in and out through second patch), mixture of air and water at outlet is expected. Is there any way we can quantify the water flow rate alone at the outlet.
thanks,
sn

BlnPhoenix · February 16, 2018, 04:24

Flow rate of mixture * volume fraction average at outlet phase yields phase flow rate.

Jeneas · August 7, 2018, 09:12

If the air and water velocities are differents, i'm not sure of that answer because of the consideration of the air velocity in the flow rate of mixture. Its my case and that block me in my problem.

miotto · April 8, 2020, 17:12

I also just tried to do this. Here is the solution I adopted:

patchIntegrate

February 14, 2018, 01:22	Mass Flow Rate of individual Phases in interFoam	#1
snnaveen15 New Member naveen Join Date: Jan 2012 Posts: 7 Rep Power: 14	Hi Foamers, I am trying to model a air pump using interFoam, Need to calculate mass flow rate of individual phases at outlet, the system has one inlet with air and the second inlet is water (but air and water can go in and out through second patch), mixture of air and water at outlet is expected. Is there any way we can quantify the water flow rate alone at the outlet. thanks, sn Last edited by snnaveen15; February 16, 2018 at 00:20.

February 16, 2018, 04:24		#2
BlnPhoenix Senior Member Join Date: Aug 2014 Location: Germany Posts: 292 Rep Power: 13	Flow rate of mixture * volume fraction average at outlet phase yields phase flow rate. snnaveen15 and tjliang like this.

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August 7, 2018, 09:12		#3
Jeneas New Member Join Date: May 2018 Posts: 14 Rep Power: 7	If the air and water velocities are differents, i'm not sure of that answer because of the consideration of the air velocity in the flow rate of mixture. Its my case and that block me in my problem.

April 8, 2020, 17:12		#4
miotto Member Gui Miotto Join Date: Feb 2020 Posts: 30 Rep Power: 6	I also just tried to do this. Here is the solution I adopted: patchIntegrate