I am trying to simulate a compressor and I am having trouble with the periodic BC.
I am using a converted fluent mesh and started with a very basic setup (incompressible, inlet with slow velocities, outlet, Walls). This setup works fine. Since the mesh includes a wedge with one single blade, I want to apply a periodic BC to end up with a full cylinder. To do that, I apply the periodic BC separately to each corresponding patch pair. The Patch pairs seem to be the same size. If I now run the simulation, an error is raised before the first iteration. Can somebody have a look at the error?