Numerical electromagnetics, 2
24.08.2006 18:47
Another nice picture. This time it shows the distribution of current in a square U-shaped turn. It was quite easy to add this functionality because the equations for electrostatic field and current field turn out to be very similar. This also made a nasty bug pop up in one of the numerical functions which took two days to find (lesson learned: it pays to always use the search and replace functionality of the text editor, even when it seems that it is faster to do those three little changes by hand).
You can see that most of the current flows near the inner corners of the turn. The bright outline of the conductor is an artifact of the finite difference method. I'm still working on how to remove that.
In logarithmic scale the small current through the composite substrate can be seen.
