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Electric field distribution within a element

Posted 17 nov 2010, 08:25 GMT-5 0 Replies

Matthias K
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Hello
I' using Comsol 4.0a to simulate the electric field between to plates. The upper plate is eqipped with a short rod to generate a discontinuity leading to a local enhanced field.

I have the following problem in general understanding the results. Given a linear basic function within the elements, the value for the electric field should be constant over the each element.
E = -grad v

But obviously comsol interpolates the field leading to a steady distribution within the elements.
Can someone show me my error? What did I forget?

Best regards.
Matthias
0 Replies Last Post 17 nov 2010, 08:25 GMT-5
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