[Prak_32]

Hi!!,

I Have been trying to simulate a centrifugal compressor. I have made the mesh using bladegen and turbogrid. And the mesh seems to decent.

I am able to simulate the single passage domain without any trouble and the solution converges well. However, when I copy the mesh in CFX to obtain a full 360 mesh, i have convergence issues.

The thing is for the full 360 mesh, the solution converges when I impose pressure boundary conditions ( ie Pressure inlet and Static Pressure outlet). However, when I impose mass flow at the outlet my solution diverges and I get an FINMES ERROR. I am enclosing my mesh images here for both the single passage and complete domain.

I would be really grateful if anyone could assist me in this.

PS:- When I convert the single passage mesh to full 360 domain, I make an interface (GGI connection ) between the repeating periodic boundaries obtained as a result of copying the single passage mesh.

Regards
Prakhar