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Dear Foamers,

We are trying to simulate the process of filling a sand mold with iron, as in iron foundries.

To do this, we are using the solver chtMultiRegionTwoPhaseEulerFoam with which we managed to achieve it, but using fictitious air leaks that cause the air to evacuate there.

What we would like is that by modifying the boundary conditions, it is somehow possible to evacuate the air (only the air, not the metal).

Is there any boundary condition with which to perform it? We have also tried using swak4foam but we have not achieved anything.

Many thanks