User-agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2
After some improvements,
http://abelian.org/lcnetgen
I implemented the fast multipole method for the capacitance
calculation. This allows large numbers of tiles to be used.
Isolated unit sphere: 111.32 pF using 30,000 tiles
111.272 pF using 1,000,000 tiles
111.269 pF using 4,000,000 tiles
(correct value is close to 111.26501 pF)
Isolated unit cube: 73.54 pF using 30,000 tiles
73.508 pF using 720,000 tiles
(correct value is close to 73.510898 pF)
The 4e6 tile sphere takes about an hour using 32 cores
of Xeon E5-2680. Fortunately for practical use 10k to 50k
tiles is plenty for around 1% precision and runs in a few
minutes on a domestic PC. Quad core and 8Gbyte RAM is fine.
Infinite ground plane is partially supported (E-field only).
Calculates response to incident E and H fields.
Example 5 shows the complicated spectrum of a LF loading coil
made from seven nested bucket coils. This is a difficult one
because the coils are so close together.
I'm looking out for interesting systems to model, especially
where accurate measurements are available for comparison.
--
Paul Nicholson
--
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