Karthik R
Hi,nThe initial starting mesh definitely looks good. Since you are running a dynamic mesh simulation, have you tried just running the mesh preview to understand if you are on the right track? This would tell you if your mesh quality is deteriorating or not.nRegarding pressure-based or density-based: Unless you expect a shock wave in your computational domain, my advice would be to stick with the pressure-based solvers. Because of their origins, density-based solvers are generally more accurate for capturing shock waves. nKarthik