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Magnetic field density more than saturation

Posted 17 sept. 2013, 17:46 UTC−4 Low-Frequency Electromagnetics Version 4.3b 2 Replies

Mehdi Naseri
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Hi all,

I'm modeling a power inductor in comsol 4.3. I'm shocked when I saw a magnetic field density of 40Tesla in a soft Iron (with loss). I was wondering if anyone knoes the reason.
2 Replies Last Post 19 sept. 2013, 16:53 UTC−4
1295006421
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Posted: 1 decade ago 19 sept. 2013, 06:49 UTC−4
Have you switched to calculate with hb-curve under the constraint amper's law?
Have you switched to calculate with hb-curve under the constraint amper's law?
Mehdi Naseri
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Posted: 1 decade ago 19 sept. 2013, 16:53 UTC−4
I did by using HB curve solve. Thanks so much.
Details for possible future person with problems:
- I added a new ampere law and added the soft iron parts to this solver. I used HB curve for solving.
- I used the buitin Soft Iron h-b curve but with linear interpolation and extrapolation
I found this link useful:

www.comsol.com/community/forums/general/thread/26751/

Good luck!
I did by using HB curve solve. Thanks so much. Details for possible future person with problems: - I added a new ampere law and added the soft iron parts to this solver. I used HB curve for solving. - I used the buitin Soft Iron h-b curve but with linear interpolation and extrapolation I found this link useful: http://www.comsol.com/community/forums/general/thread/26751/ Good luck!

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