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Simulation of liquid evaporation

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Old   September 1, 2019, 02:44
Default Simulation of liquid evaporation
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There is a tank filled with helium. The tank wall is multilayered, composed of some solid domains.
Liquid hydrogen is supplied to the tank, and then hydrogen begins to evaporate when it contacts with the warm walls. When the tank is filled with liquid hydrogen, the supply stops and the tank is maintained for a certain time. The purpose of modeling is to make sure that the insulation is selected correctly, near-wall fluid layers do not boil during maintaining.
I use two fluids in the fluid domain: 1) helium (pure substation) 2) hydrogen (homogenous binary mixture), but Iíve received the following error:equilibrium phase in one phase in a multiphase run is not supported by the solver for this combination of thermodynamic states.

what multiphase model can you advise for this case?
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Old   September 1, 2019, 08:16
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Why do you need CFD for this? Why are empirical correlations and some hand calculations not sufficient?

Boiling simulations are difficult and even harder to get accurate. Getting it more accurate than a good hand calculation will probably be difficult.

But to answer your question - have you looked at the tutorial examples? I would also contact ANSYS support as they have additional examples and will probably have something close to your case.
Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.
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