[gbettega]

Hello forum,
I would like to activate convergence criterion for all the list of RMSs below,
for a certain convergence level: here -7.

% -----------------------
% Convergence parameters
% -----------------------
CONV_RESIDUAL_MINVAL= -7
CONV_FIELD= RMS_PRESSURE, RMS_VELOCITY-X, RMS_VELOCITY-Y, RMS_VELOCITY-Z, RMS_ENERGY, RMS_TKE, RMS_DISSIPATION
INNER_ITER= 1500
CONV_STARTITER= 10
[...]

After N<1500 iterations SU2 exists, and tells me:

+-----------------------------------------------------------------------+
| Convergence Field | Value | Criterion | Converged |
+-----------------------------------------------------------------------+
| rms[P]| -7.45293| < -7| Yes|
| rms[U]| -7.4718| < -7| Yes|
| rms[V]| -7.96358| < -7| Yes|
| rms[W]| -8.04231| < -7| Yes|
| rms[k]| -9.53798| < -7| Yes|
| rms[w]| -6.66409| < -7| No|
+-----------------------------------------------------------------------+

Indeed, as shown in picture, the rms[w] is not satisfied.

Question: is there a reason for that?
Thank you
Regards
Giovanni

[bigfootedrockmidget]

The solver will stop when INNER_ITER has been reached, regardless of the convergence criteria. If you set it INNER_ITER=3000, it will probably stop before, due to the convergence criteria.

[gbettega]

Thanks you Big
That's Indeed the question. I put N=1500, and RMS limit -10. Solver did not reach N, but stops, with all the RMS residuals at <-10, apart fron RMS of dissipation, which Is only close tò -10, but greater.
I'll check
Thanks you
Giovanni