Solution converged after 1 iteration!!
 

Hello,

I am an experienced Fluent user and I get this big problem using Fluent 6.3.26.

After 1 iteration of the flow through a duct the solution is converged with all the residuals equal to zero!

Very frustrating problem since it runs fine in Fluent 12.1. Any ideas?

Cheers,

Carlos.

Solution to problem.
 

Hi,

The problem was due to divergence in the solver which came from setting the density to zero by accident.

Carlos.