Class 3 Error
If a run, which includes periodic boundaries, also has mesh adaption, any new nodes that the refiner creates at a periodic boundary may be unattached at the corresponding periodic boundary. This can lead to the CFX Solver computing a solution in which only the original nodes on the periodic boundaries recognize the periodicity of the problem, and thus the solution will be corrupted.
This is due to a bug in
No workaround is currently available. However, if the mesh refinement only takes place in regions away from the periodic boundaries, then there will be no error in the solution.
ANSYS CFX Release 12.0.