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Solver error only at lower frequencies
Posted 2024年10月1日 GMT-4 11:11 Electromagnetics, Studies & Solvers 1 Reply
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I am looking at a magnetic fields study in which I want to produce some eddy currents in a copper plate above an alternating magnetic dipole.
I have attached the .mph file
When I run a frequency domain study at 10,000 Hz everything seems to solve fine. When I reduce the frequency to say 100 Hz or 1000 Hz and press the Compute button, I get the following error:
- Feature Stationary Solver 1 (sol1/s1) Failed to find a solution. Matrix has zero on diagonal. Returned solution is not converged. Bot all parameter steps returned.
Can anyone see what the cause is? Thankyou in advance for any input.
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Jamie,
you need a small electrical conductivity in the air domain (e.g. 1 S/m) for numerical stability.
Cheers Edgar
-------------------Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com