Continuity si not converged
 

I'm modelling a gas turbine combustor with an unstructured grid. I've got a problem for the continuity residuals. I don't think it's a problem related with the grid.

Re: Continuity is not converged *NM*
 

Re: Continuity si not converged
 

Maybe...but many things can cause it.

Continuity is not converged
 

I tried several unstructured grid (sensitivity analysis). Could I change under relaxation factor?

Re: Continuity is not converged
 

Decreasing of under relaxation factor usually help. Especially the Momentum under relaxation factor.

Re: Continuity is not converged
 

Decrease under relaxation factor. first momentum, if it not sufficient then try with pressure also.