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Phase Change using reactingEulerFoam

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Old   October 20, 2020, 15:49
Post Phase Change using reactingEulerFoam
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Patrick H
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Hi All,


I'm trying to simulate the condensation of water vapor in an air compressor without any initial liquid present, using reactingTwoPhaseEulerFoam.

The gas entering the compressor is modeled as a multi component mixture ( air + H2O) with mass fractions from psychometric data: 300K, 1atm, 70% RH

alpha.gas is set to 1, and alpha.liquid is set to 0.

I have tried several settings from the tutorials and other documents focusing on mass transfer and phase change, yet alpha.liquid remains zero.

Any guideline would be appreciated.
Thank you
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Old   October 20, 2020, 16:08
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Stanley John
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For mass trasnfers to trigger this this solver, one has to give a very small value of volume fractions for the other phase maybe 1e-12. Thats how it is built
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Old   October 20, 2020, 16:13
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Patrick H
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Thank you for your quick reply.
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