Pressure boundary

swapnil313 · April 4, 2018, 17:25

I am simulating a porous cylindrical material which is filled with oxygen and has two outlets at atmospheric pressure.
I want to add the concentration/pressure of oxygen in the body.
Can anyone tell me, how can I achieve this?

ghorrocks · April 4, 2018, 17:51

If the fluid is just oxygen then use boundary conditions or initial conditions to specify the pressure state for the simulation to use.

If the fluid is a mixture of oxygen and other gasses (air, for instance) and the concentration of gasses varies around the simulation then consider using a multicomponent mixture for the fluid as that can handle variable composition gasses.

swapnil313 · April 4, 2018, 17:57

Thank you ......................

April 4, 2018, 17:25	Pressure boundary	#1
swapnil313 New Member Swapnil Rane Join Date: Sep 2017 Posts: 23 Rep Power: 9	I am simulating a porous cylindrical material which is filled with oxygen and has two outlets at atmospheric pressure. I want to add the concentration/pressure of oxygen in the body. Can anyone tell me, how can I achieve this?

April 4, 2018, 17:51		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,984 Rep Power: 145	If the fluid is just oxygen then use boundary conditions or initial conditions to specify the pressure state for the simulation to use. If the fluid is a mixture of oxygen and other gasses (air, for instance) and the concentration of gasses varies around the simulation then consider using a multicomponent mixture for the fluid as that can handle variable composition gasses. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

April 4, 2018, 17:57	Thank you	#3
swapnil313 New Member Swapnil Rane Join Date: Sep 2017 Posts: 23 Rep Power: 9	Thank you ......................

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