Using Level Set Method to Model Evaporation in COMSOL
 

Hi All,


I am new to this forum and did not find a COMSOL forum in the software specific listings, so I hope putting this in Main is acceptable.


I am trying to do a very simple model of evaporation using the level set method, and as you can see from the attachment the solution never converges and gets stuck in a very small time step. I ran it over night and had to cancel the computation.


I have tried many different settings for the Level Set parameters:

- Reinitialization Parameter, gamma
- Parameter controlling interface thickness, epsilon


I am following the rule of thumb given at the COMSOL knowledge bank, located here (Two-Phase Flow Modeling Guidelines - Knowledge Base (comsol.com)), but really I have no idea what these parameters mean physically and if that is the problem or some other aspect of my model.


Has anyone had experience with level set method?