divergence during turbine simulation
 

Hello,

I am trying to simulate a compressible flow for a turbine rotating at 60000 rpm (MRF). Boundary conditions used are stagnation pressure and temp at the inlet and static pressure at the outlet. The solution diverges very slowly when sufficiently relaxed.

Can you please suggest ways of tackling this divergence problem. Your comments will be highly appreciated.

Thanks in advance. --Mac.

Re: divergence during turbine simulation
 

Are you running steady state or transient, which version of star, ... ?????!!!!!

Re: divergence during turbine simulation
 

Well, its a steady state compressible flow analysis with rotating reference frame. I am also using cyclic boundary condition, since only a sector of the geometry is considered.

The version i'm using is STARCD 3.26. Please send your comments.

Thanks, --Mac.