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twoLiquidMixingFoam volume traction issue

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Old   February 27, 2023, 13:13
Default twoLiquidMixingFoam volume traction issue
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Quentin d'Avout
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Dear fellow foamers,


I've setup a 2-gas mix case with molecular diffusivity, k-espilon turbulence modelling using tLMF solver.
The sim starts with volume purely one phase and the other (much lighter) gas starts to sip into the fluid volume thru two patches.

I get to physically plausible results (natural and forced convection alike) but the volumic integration of gas fractions does not add up: there is way too much of the light gas phase compared to the actual (and paraview-verified) mass flow rate inlet.


Has anyone ever experienced massive volume fraction discrepancies with 2-phase flows?
Any pointers to where to check the code for this solver?
alphaEqn seems ok to me.


Thanks in advance!
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gas diffusion, integration, multiphase, twoliquidmixingfoam, volume fraction


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