Stratified Two-Phase Flow

metro · May 20, 2010, 01:20

Hi All,

I am currently attempting to model stratified flow in horizontal pipeline (water/steam) and is new to openFOAM. I would like to implement non-uniform boundary conditions for each phase but is finding it difficult to do so. The main boundary conditions which I am interested in is the phase velocities and void fraction. The solvers which I have been playing with have been interFoam and twoPhaseEuler.

The main questions which I have is:

Is the solvers which I am attempting to use capable of handling separate boundary conditions per phase? and of so how can I do it?

Any help will be greatly appreciated

kwardle · May 24, 2010, 11:43

interFoam is NOT written on a per-phase basis so only a single BC is used for phase boundaries. You could have a non-uniform BC condition patched in using something like groovyBC. twoPhaseEulerFoam is written per-phase and may be appropriate for your case depending on conditions--I am less familiar with this route.

May 20, 2010, 01:20	Stratified Two-Phase Flow	#1
metro New Member Join Date: May 2010 Posts: 27 Rep Power: 16	Hi All, I am currently attempting to model stratified flow in horizontal pipeline (water/steam) and is new to openFOAM. I would like to implement non-uniform boundary conditions for each phase but is finding it difficult to do so. The main boundary conditions which I am interested in is the phase velocities and void fraction. The solvers which I have been playing with have been interFoam and twoPhaseEuler. The main questions which I have is: Is the solvers which I am attempting to use capable of handling separate boundary conditions per phase? and of so how can I do it? Any help will be greatly appreciated

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May 24, 2010, 11:43		#2
kwardle Senior Member Kent Wardle Join Date: Mar 2009 Location: Illinois, USA Posts: 219 Rep Power: 21	interFoam is NOT written on a per-phase basis so only a single BC is used for phase boundaries. You could have a non-uniform BC condition patched in using something like groovyBC. twoPhaseEulerFoam is written per-phase and may be appropriate for your case depending on conditions--I am less familiar with this route.