[quiqui]

Originally Posted by Far

Using density based solver (uniform inlet pressure, averaged from pressure profile data) and solver is running without problems.

Few points :

1. Mesh is not good enough

2. Place outlet further downstream.

3. Check boundary conditions

Which means you did not import the profile as the total pressure @ pressure inlet, you use a specific number? right?

I used to run the case @ 70 psi, it run well, but once I imported the profile, it gave AMG divergence error.

[Far]

Ok. I got solution for your specific problem.

Choose direction specification method as "direction vector" instead of normal to boundary. now compute from inlet, everything will be fine...