[gasaffe]

Hello everyone,

I´m trying to simulate a fan for some time now using a frozen rotor approach as an initial solution for the transient case. The steady state case has satisfying results after about 1000 iterations. When I try to use this solution as the start of the transient case, the solution diverges immediately. I used this method before and it always worked fine, so I´m a bit confused now.
The transient case works when started from 0 and uses the same mesh and turbulence model as the steady state case, so the problem seems to be the initial solution from the frozen rotor case.
Has anyone encountered something similar before or has an idea how to solve it?

[gasaffe]

Upgrading to v10 and using NCC instead of cyclicAMI solved the problem.