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Eulerian- Boiling Models

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Old   November 24, 2021, 01:30
Default Eulerian- Boiling Models
Omid Shekari
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I'm working on a 2-phase model with boiling involved. The working fluid is liquid nitrogen (the process is Cryogenic); I need help with two question here:
1- Why can't one get a mixture temperature (as in VOF Model) in Eulerian-Boiling models? I need to get a mass-weighted temp average at outlet, but no such option is available. Anything I can do instead?
2- There are a lot of models/modification (specially in force setup section) for boiling models, which I have no acquaintance and experience in. can anyone kindly give a brief explanation, or suggest a reference that can help me find out which options are suitable or even effective for my simulation? also any experience and recommendation is highly appreciated.
Further info about my case:
- axisymmetric pipe
- k-e RNG or standard
- scalable wall function (y+ around 15)
- velocity inlet: 20m/s
- pressure outlet about 3.9 bar
- temp inlet: 77 K
- vof gas inlet: 0.3
- wall temp: constant 293 K
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Old   February 9, 2022, 10:33
Ching Liu
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This example should help you: $FOAM_TUTORIALS/heatTransfer/chtMultiRegionTwoPhaseEulerFoam/solidQuenching2D
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boiling modeling, results, tutorial

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