Problems in convergence
Hi,
I have a problem concerning a transient calculation I am conducting. Even though I have sufficiently small time step size ( Courant number below 0.5 ), at every time step the .info file spits out error messages concerning the convergence of the equations, like this : <<<<UMOMENTUM EQUATION NOT CONVERGED>>>> <<<<WMOMENTUM EQUATION NOT CONVERGED>>>> <<<<CONTINUITY EQUATION NOT CONVERGED>>>> <<<<ENTHALPY EQUATION NOT CONVERGED>>>> <<<<SCALAR EQUATION 1 NOT CONVERGED>>>> <<<<SCALAR EQUATION 3 NOT CONVERGED>>>> I have increased the number of corrector stages but the problem persists. Any ideas? Thank you in advance. 
Re: Problems in convergence
It seems I made a mistake in my post, the error messages read : UMOMENTUM EQUATION NOT CONVERGED WMOMENTUM EQUATION NOT CONVERGED CONTINUITY EQUATION NOT CONVERGED ENTHALPY EQUATION NOT CONVERGED SCALAR EQUATION 1 NOT CONVERGED SCALAR EQUATION 3 NOT CONVERGED

Re: Problems in convergence
hi,
The same kind of error i got in one of my analysis. what i did i just decrease the residual tolarances and also increase the corrector stages from 20 to 30 and at the same time increase the number of sweeps. now that error is not there..U can try this also. somnath 
Re: Problems in convergence
Thank you for the advice. I wiil try it out immediately.

All times are GMT 4. The time now is 07:34. 