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Simple model not converging

Posted 2025年7月29日 GMT+2 17:33Electromagnetics, Studies & SolversVersion 6.21 Reply

Kyle MacRobbie
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Hi all,

I am trying to model electric field shielding with a copper box that has some holes in it. I feel as though this should be a very simple simulation for COMSOL to run, but for some reason my convergence plot plateaus before the specified tolerance of the solver. I have tried doing very fine meshing, and this did not help.

Does anyone know what I can do about this?

Thanks

1 Reply Last Post 2025年7月30日 GMT+2 09:21
Edgar J. Kaiser Certified Consultant
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Posted: 6 months ago 2025年7月30日 GMT+2 09:21

Kyle,

in the ec physics the solver needs a non-zero conductivity in all domains, also in air. You can start with something as low as 1 S/m or lower as long you get convergence.

Cheers Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Kyle, in the ec physics the solver needs a non-zero conductivity in all domains, also in air. You can start with something as low as 1 S/m or lower as long you get convergence. Cheers Edgar

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