incompressible twoPhaseEulerFoam

hoseinhd · January 11, 2016, 08:53

Hi dear Foamers,

As you know the description of twoPhaseEulerFoam says that "Solver for a system of 2 compressible fluid phases with one phase dispersed, e.g. gas bubbles in a liquid including heat-transfer."

How can I use this solver for incompressible fluid?

Thanks a lot
hoseinhd

BlnPhoenix · January 11, 2016, 09:35

You can set the diameterModel in /constant/phaseProperties to "constant" with "constantCoeffs" and give a diameter for the resp. phases. I think this should give you incompressible phases.

hoseinhd · January 12, 2016, 01:07

Thanks BlnPhoenix for your reply.

What does diameterModel exactly mean for a continuous phase?

I guess if its magnitude is large enough then it will be continuous phase (like fluidisedBed tutorial).

I think putting equationOfState rhoConst; in constant/thermophysicalProperties.incompressiblePhase would solve the problem. Am I right?

BlnPhoenix · January 12, 2016, 02:40

Quote:

Originally Posted by hoseinhd

What does diameterModel exactly mean for a continuous phase?

I guess if its magnitude is large enough then it will be continuous phase (like fluidisedBed tutorial).

Yes, in areas where the dispersed phase gets larger than the continous phase these two get blended, so e.g. water is now dispersed in air and these water droplets have the prescribed diameter.

Quote:

Originally Posted by hoseinhd

I think putting equationOfState rhoConst; in constant/thermophysicalProperties.incompressiblePhase would solve the problem. Am I right?

Yes, i think your correct.

January 11, 2016, 08:53	incompressible twoPhaseEulerFoam	#1
hoseinhd New Member hossein hadi Join Date: Apr 2015 Posts: 15 Rep Power: 10	Hi dear Foamers, As you know the description of twoPhaseEulerFoam says that "Solver for a system of 2 compressible* fluid phases with one phase dispersed, e.g. gas bubbles in a liquid including heat-transfer."* How can I use this solver for incompressible fluid? Thanks a lot hoseinhd

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January 11, 2016, 09:35		#2
BlnPhoenix Senior Member Join Date: Aug 2014 Location: Germany Posts: 292 Rep Power: 13	You can set the diameterModel in /constant/phaseProperties to "constant" with "constantCoeffs" and give a diameter for the resp. phases. I think this should give you incompressible phases.

January 12, 2016, 01:07		#3
hoseinhd New Member hossein hadi Join Date: Apr 2015 Posts: 15 Rep Power: 10	Thanks BlnPhoenix for your reply. What does diameterModel exactly mean for a continuous phase? I guess if its magnitude is large enough then it will be continuous phase (like fluidisedBed tutorial). I think putting equationOfState rhoConst; in constant/thermophysicalProperties.incompressiblePhase would solve the problem. Am I right?