Reply To: Sudden divergence in transient calculation of water vapor condensation in closed space

[Amine Ben Hadj Ali]

The Lee Model itself is not completely correct for this kind of investigation. Either one needs to refine and refine or to have a sub-model which deals with wall condensation. I hope you are doing auto-saving to have a recovery restart file from which you can start again and perhaps uses a smaller time step size and to check where it starts diverging.
In general it is not recommended to use Explicit VOF when having mass transfer.