[star-user]

Hi Dear's
I have been working on simulation of centrifugal compressor in star ccm software applying steady-state approach.
The issue that I have faced is related to the divergence of the residuals.
I would be grateful if you can share any of your experience in this field (the minimum quality of the mesh, the initial and boundary condition and other important factors are our main concerns)
The boundary condition for inlet is 90 kP and 38 C and static pressore outlet is 185 kPa.
polyhedral mesh have been used and the rotational speed of the rotor is 150000 rpm.