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Induced Current Convergence Issues
Posted Jun 17, 2014, 5:48 p.m. EDT Low-Frequency Electromagnetics Version 4.3b 1 Reply
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Hello
I am modeling inductively coupled wires using the magnetic and electric fields physics in the AC/DC module, using terminals and grounds to produce an initial current. However, no matter which solver or solver configurations I use I cannot get my solution to converge. The best result I can get is using the preconditioner, but after running for an absurd amount of iterations I still get a convergence error, so there's no way to know if the result is even on the right track.
Is there a problem with my meshing, or perhaps the way I created the air domain around the wires?
Thank you
I don't why I can't make the model file smaller than it currently is (~70MB), but I am including a Dropbox link to the file. Hopefully it is not too large to be downloaded and looked at.
www.dropbox.com/s/es4q2oubb3c6yyx/5umgoodthick.mph
I am modeling inductively coupled wires using the magnetic and electric fields physics in the AC/DC module, using terminals and grounds to produce an initial current. However, no matter which solver or solver configurations I use I cannot get my solution to converge. The best result I can get is using the preconditioner, but after running for an absurd amount of iterations I still get a convergence error, so there's no way to know if the result is even on the right track.
Is there a problem with my meshing, or perhaps the way I created the air domain around the wires?
Thank you
I don't why I can't make the model file smaller than it currently is (~70MB), but I am including a Dropbox link to the file. Hopefully it is not too large to be downloaded and looked at.
www.dropbox.com/s/es4q2oubb3c6yyx/5umgoodthick.mph
1 Reply Last Post Jun 27, 2014, 11:41 a.m. EDT
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Posted:
1 decade ago
Hi Jonathan,
To reduce your file size, you can clear the solution and the mesh. In 4.3b, you can do it through the edit menu (at the right of the file menu) by selecting : clear all meshes and clear all solutions.
I did not open your model, but my first guess would be the air electrical conductivity. By default, it is set to 0. In order to get a convergence, you should try a higher value (10 for example) and then make it decrease until it converge.
Hope this helps.
Patrice Gouin
To reduce your file size, you can clear the solution and the mesh. In 4.3b, you can do it through the edit menu (at the right of the file menu) by selecting : clear all meshes and clear all solutions.
I did not open your model, but my first guess would be the air electrical conductivity. By default, it is set to 0. In order to get a convergence, you should try a higher value (10 for example) and then make it decrease until it converge.
Hope this helps.
Patrice Gouin