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Re: [FEMM] Simple solenoid help

Kalpit V Desai wrote:

Hi all,

I am Kalpit, a new member of "FEMM Community". I am novice with FEMM and I
am trying to model some simplest geometries. I have just uploaded the file
"solenoidCentered.fem" in the directory ../yahoo_files.
Here I am trying to model a simple solenoid in axissymmetric geometry. The
two rectangular blocks represents copper coils. I am using asymptotic
boundary conditions for two of the four boundaries.
I am not able to solve for this geometry.
Can anyone please point out what am I missing here?
Is that the case with axissymmetric geometry that I can only draw right
half and I have to leave the left half out?

Thanks a lot in advance,
Kalpit

For axisymmetric problems, you just model the region for r>=0. FEMM 4.0 gives you an error message that tells you that you can't have anything in r<0 for axisymmetric problems, but v3.3 just gives a cryptic "can't analyze the problem" error message for this condition.