June 29, 2020 at 9:08 pmicellbSubscriber
I'm trying to simulate E field distribution in between two copper electrodes in vacuum, with a field grading (FG) material put near the electrodes, see attached picture. The field grading material's conductivity is a function of E field. The J-E curve of the FG is shown in the picture.
I found only DCconduction solution type allows me to input non-linear J-E curve. However, the simulated E field in the FG material is zero (I've ticked solve inside the FG material). I also tried changing the conductor/insulator conductivity threshold in design setting to make the FG recognized as a conductor but it did not work either.
I also tried electroDCconduction solution type but it always pops up an error "Process 3deqs terminated abnormally" and was not able to simulate.
How can I simulate the reasonable E field in the FG? I succeeded with Comsol but I think Ansys should be able to do this, too.
June 30, 2020 at 2:16 ammchristiAnsys Employee
Set Conductor/insulator threshold 10x smaller than conductivity of FG material and be sure that this material is set to "solve inside".
June 30, 2020 at 3:31 pmicellbSubscriber
Thanks for your reply but these were exactly what I did.
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