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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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Problem with changing a Multi-Turn Coil from a rotating body to a CAD Import

Posted Jun 6, 2014, 5:46 a.m. EDT Low-Frequency Electromagnetics, Interfacing, Mesh, Studies & Solvers Version 4.4 2 Replies

Thomas Bender
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Hi @ All,

i have created a model with a Multi-Turn Coil (rotating body).
Now i try to exchange the rotating body with a CAD Model (looks like a
4 rectangular tube), but i can't define a Input Boundary for a Current.
It would be great if someone can give me a advice.
A second issue arise when i try to create a mesh. I cant use a size bigger then "Finer".
is ther a possibility to create a normal size mesh?

Thanks for your help,

cya Thommy

old modle: B-Field Rund-Spule mit C-Kern_3.mph
new model: B-Field 4-Kant-Spule mit C-Kern_3.mph
2 Replies Last Post May 27, 2015, 7:37 p.m. EDT
Thomas Bender
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Posted: 1 decade ago Jun 10, 2014, 3:22 a.m. EDT
Good morning,

does nobody knows a way to use the square tube as a coil?
I can't define a (correct) Boundary as an input Boundary.

Thanks for your help,

cya Thommy
Good morning, does nobody knows a way to use the square tube as a coil? I can't define a (correct) Boundary as an input Boundary. Thanks for your help, cya Thommy
Arpitha Ravishankar
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Posted: 10 years ago May 27, 2015, 7:37 p.m. EDT
Hi,

I'm facing the same problem, did you find a solution? I built the geometry that needed multi turn coil input but it is a square and I get an error that it could not determine the center of the circular coil. And the direction of the input current doesn't not follow a unidirectional course. Please let me know if you could solve this.

Thank you.
Hi, I'm facing the same problem, did you find a solution? I built the geometry that needed multi turn coil input but it is a square and I get an error that it could not determine the center of the circular coil. And the direction of the input current doesn't not follow a unidirectional course. Please let me know if you could solve this. Thank you.

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