Ansys Learning Forum Forums Discuss Simulation Fluids Sudden divergence in transient calculation of water vapor condensation in closed space Reply To: Sudden divergence in transient calculation of water vapor condensation in closed space

DrAmine
Ansys Employee
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.