Warning: boundary Mach number exceeds maximum limit on pressure-outlet-8 for 11 faces
 

Hello,
So I'm having this warning and was wondering if it is of any importance.
The outlet where this happens is a small nozzle which large flow so that the flow speed comes close to the speed of sound is no surprise.
Though this only happens when I use the compressible ideal gas model.
When solving the incompressible equations this doesn't show up.
Also the flow through the nozzle is given by: 0.1724 g/s but the "converged" solution only calculates 0.16757728 g/s
would u call that in the errors or isn't the solution converging?
The residuals look fine!
Also the pathlines of the solution look to me - what I would expect.