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Divergence VS Dimensions

Posted 26 mar 2014, 07:06 GMT-4 MEMS & Nanotechnology, RF & Microwave Engineering, Acoustics & Vibrations, MEMS & Piezoelectric Devices 0 Replies

Nima Mohammad pour
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Good Morning,
I performed different simulations of flat coils to see the magnetic flux density without any error and results look reasonable.
The problem is that when I reduce the size of the flat coil (Diameter=30 [mm] , wire diameter=1 [mm]), and choose a finer mesh, Comsol fails to find a solution:

Failed to find a solution.
Divergence of the linear iterations.
Returned solution is not converged.

I am using Magnetic Fields physic. Should I use a different physic for very small devices?
Is the divergence because of the very small size?

Thanks,
Nima.
0 Replies Last Post 26 mar 2014, 07:06 GMT-4
COMSOL Moderator

Hello Nima Mohammad pour

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