Karthik R
Hello,nModeling surface tension or not depends on the problem you are trying to model. If you are modeling a capillary flow, then surface tension is extremely important. However, if the flow you are modeling is very macroscopic and the surface tension does not feature in your flow, you don't really need to model.nHaving said that, what are the dimensions of your problem? Can you please post a screenshot of your computational mesh? Also, are you converging every single time-step? What is the Courant number when you run the simulation (each time-step)?nThanks.nKarthik