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MEF simulation not converging
Posted Sep 15, 2016, 12:53 p.m. EDT Low-Frequency Electromagnetics, Studies & Solvers Version 5.2 1 Reply
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Hello,
I am simulation the electric and magnetic field using MEF of some coils at 1MHz. This is a frequency domain study but for some reason, the iterative solver never converges and approaches the relative tolerance before shooing up again. (it uses GMRES, I have also tried FGMRES
When is set the relative tolerance to .001, looking at the convergence plot gets down to an error of ~.01 before restarting endlessly. I change the relative tolerance to .1, and then the convergence plot only reaches .5 or so.
What is be best way to achieve convergence? I have tried changing the mesh multiple times, but that makes no difference.
I am simulation the electric and magnetic field using MEF of some coils at 1MHz. This is a frequency domain study but for some reason, the iterative solver never converges and approaches the relative tolerance before shooing up again. (it uses GMRES, I have also tried FGMRES
When is set the relative tolerance to .001, looking at the convergence plot gets down to an error of ~.01 before restarting endlessly. I change the relative tolerance to .1, and then the convergence plot only reaches .5 or so.
What is be best way to achieve convergence? I have tried changing the mesh multiple times, but that makes no difference.
1 Reply Last Post Sep 16, 2016, 7:54 a.m. EDT
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Posted:
8 years ago
Loic,
Did you try to set non-zero conductivity of air and add Gauge Fixing for A-Field
Regards,
Sergei
Did you try to set non-zero conductivity of air and add Gauge Fixing for A-Field
Regards,
Sergei