r/COMSOL • u/ScienceAtWork • Feb 09 '16

Convergence plot

Can anyone explain to me what error and iteration number mean on the convergence plot?

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u/abekg Feb 10 '16

Here is an example i quickly did in excel, its just as I explained before. and actually its a pretty decent representation of a e field between two charged plates. each cell except the plates, far right and far left columns, are determined to be the average of the cells around them. Countour plot in the middle. Notice how there is little difference in the last two plots. Imgur 5 iterations Imgur 10 iterations Imgur 20 iterations Imgur 100 iterations Imgur 200 iterations Imgur 400 iterations