[Ank]

Hey

Sorry I got busy in some other work.

I have seen that page..not fully understood though. I will read it again and will let you know.

The case of tube having fins is now converging, the pressure has gone to 0.02 from 0.5..the convergence is slow. The grid quality is the problem I think, because the grid number is 1600000, mesh is tetra, and the skewness is around 1.1. I am using Gmsh 2.3.0 and I am not able to decrease the skewness below this value.

I am very thankful to both of you for your valuable suggestions and time.

I will post back as soon as possible with further updates.