Learning Forum

[asustark700]

Hi there,

I'am doing a simulation of assembly of centrifugal compressor (Impeller + diffuser)

Project schematic

when i run the simulation. it's been several times. Exectly on 50th iteration i get this error.  
the residual graph:

I'm using Ansys 2024 student version

[CFD_Friend]

Hi,

This can be due to high velocity flow inside the domain, can you recheck the inlet conditions?

Also, try running the case using Double Precision.

[Petros]

Hi,

Is the operating point close to one of the speed curve limits? If so, can you try using exit corrected mass flow for the outlet?

Also what are your current boundary conditions?

Thanks