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Average over smoothed data

Posted Mar 26, 2020, 4:07 p.m. EDT General, Parameters, Variables, & Functions, Results & Visualization Version 5.5 2 Replies

Alexandre Arsenault
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Hello,

I am calculating the average of some 2D data. If I understand correctly, Comsol calculates the integral of the raw data over the selected domain. However, when I plot the data on a surface plot, I notice that it looks much better when it is smoothed. My question is, is it possible to calculate the average using the smoothed data instead of the raw data?

Thank you,

Alex

2 Replies Last Post Mar 27, 2020, 9:15 a.m. EDT
Henrik Sönnerlind COMSOL Employee

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Posted: 5 years ago Mar 26, 2020, 4:53 p.m. EDT

The integration itself will act as a smoothing. Under some simplifying assumptions, it can actually be shown that the integral of the discontinuous field and the integral of the smoothed field are the same.

If the difference becomes important, then I would suggest that your mesh is too coarse.

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Henrik Sönnerlind
COMSOL
The integration itself will act as a smoothing. Under some simplifying assumptions, it can actually be shown that the integral of the discontinuous field and the integral of the smoothed field are the same. If the difference becomes important, then I would suggest that your mesh is too coarse.
Alexandre Arsenault
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Posted: 5 years ago Mar 27, 2020, 9:15 a.m. EDT

That makes sense.

Thanks Henrik!

Alex

That makes sense. Thanks Henrik! Alex

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