Phase change in Multi-Phase Flow Simulations


I think it would be great if we could have a phase change in multiphase flow simulations. a few examples of use cases are:

  • Pouring a mould and solidifying of the material (expect the material to shrink within the mold as it is cooling)
  • external flow with Ice build up on a wing (possibly local time stepping due to time it would take in sim time?)
  • Steam production from a boiler (more accurate heat exchanger sim including LH of evaporation)

Unfortunately, this is a little harder as to my knowledge there is no thermal model in Multi-Phase flow? So this might have to be implemented first?

This is something I have wanted to do for a while, however, yesterday someone commented on one of my projects and asked about icing simulations and it got me thinking.

I would expect geometry wise that the ice build up would be treated as a liquid would be in terms of its phase boundary being defined as a fraction.

Any thoughts and ideas on this are appreciated and I understand this might be a bit of a tall order.

Heat Transfer with Phase Change
Steam/Water Separator
'Dual Stage Thermoelectric Plate' simulation project by jousefm