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problem about infinite elements

Posted 20.01.2011, 06:46 GMT-5 Low-Frequency Electromagnetics Version 4.1 4 Replies

Noritaka Yusa
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Hi,

I am making a simulation about remote field eddy current . I want to set a domain with infinite elements but an error is got.
-Feature: stationary solver1(sol1/s1)
-Error:undefined value found
Why such an error is produced? Could anyone help ?

Thank you!

Best Regards.
4 Replies Last Post 16.02.2011, 02:49 GMT-5
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 20.01.2011, 09:16 GMT-5
Hi

Ttis could come from the definition and the way to set up the infnite or PML elements (but it might be something else too)

you must define if you are in cartesian, cylindrical or spherical shape = direction of extension, and from where you count your origine.

Then your infinite geoemtry should be rather symmetric arranged around this origine you have defined, if not replace the "origine" to a more centra place (w.r.t. infinite element shape.

In cartesian, make true separate domains for x, y and x+y directional infinite element properties

--
Good luck
Ivar
Hi Ttis could come from the definition and the way to set up the infnite or PML elements (but it might be something else too) you must define if you are in cartesian, cylindrical or spherical shape = direction of extension, and from where you count your origine. Then your infinite geoemtry should be rather symmetric arranged around this origine you have defined, if not replace the "origine" to a more centra place (w.r.t. infinite element shape. In cartesian, make true separate domains for x, y and x+y directional infinite element properties -- Good luck Ivar
Just Be
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Posted: 1 decade ago 29.01.2011, 13:17 GMT-5

Link wasn't correct, I think.
Link wasn't correct, I think.
Noritaka Yusa
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Posted: 1 decade ago 16.02.2011, 02:45 GMT-5
Hi,

Ivar, thank you for your reply!

I attached my model. It is about remote field eddy current testing.
I can get the results when I use "general" type for defining the infinite domain,
but when the "cartesian" type is used, there still will be a error named of "undefined value found.
I am confusd about this. The center of block is"0,0,0".

Thanks again.

Hi, Ivar, thank you for your reply! I attached my model. It is about remote field eddy current testing. I can get the results when I use "general" type for defining the infinite domain, but when the "cartesian" type is used, there still will be a error named of "undefined value found. I am confusd about this. The center of block is"0,0,0". Thanks again.
Noritaka Yusa
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Posted: 1 decade ago 16.02.2011, 02:49 GMT-5
sorry there is someting wrong and I can not upload the mph.file.
sorry there is someting wrong and I can not upload the mph.file.

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