What does this convergence behavior mean?

Elvis143BRA · October 2, 2017, 08:49

If a solution seems to be converging to my criteria, but then after 400 iterations, some scaled residuals like continuity, species and liquid water, increase and remain constant for the rest of the calculations and never achieve the convergence criteria I set, does that mean I can consider the solution as converged or not?

Side note: my monitored variables remain constant even though that is happening with the residuals.

FFD · October 6, 2017, 08:14

Monitor a momet coefficient and a force coefficient. If these remain constant your solution is probably converged (but it is not guaranteed).
I would increase the number of iterations and see how the residuals (and the coefficients) changes. If something diverges it never converged. It just looked like.

October 2, 2017, 08:49	What does this convergence behavior mean?	#1
Elvis143BRA New Member Join Date: Jan 2017 Posts: 11 Rep Power: 9	If a solution seems to be converging to my criteria, but then after 400 iterations, some scaled residuals like continuity, species and liquid water, increase and remain constant for the rest of the calculations and never achieve the convergence criteria I set, does that mean I can consider the solution as converged or not? Side note: my monitored variables remain constant even though that is happening with the residuals.

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October 6, 2017, 08:14		#2
FFD Member Join Date: Aug 2015 Posts: 30 Rep Power: 11	Monitor a momet coefficient and a force coefficient. If these remain constant your solution is probably converged (but it is not guaranteed). I would increase the number of iterations and see how the residuals (and the coefficients) changes. If something diverges it never converged. It just looked like.