Version 8 (modified by tirons, 18 months ago) (diff) |
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1D frequency-domain solutions are compared against Leroi http://www.amirainternational.com/WEB/site.asp?section=news&page=projectpages/p223f_software
Frequency-domain closed-loop source
Above, a comparison of Lemma with Leroi for a square closed-loop source transmitting 20 Amps at 50 kHz. Both solutions are in excellent agreement (left). The difference plot shows that the two codes fall within .1% throughout, with minor differences focused near the corners of the loop. Calculations were made at the air-earth interface.
Same as the above plots, but calculations were made at 20m depth.
In this plot, the horizontal components of the B field are shown at 20 m of depth.
In all of these cases Lemma is in excellent agreement with Leroi, the main differences can be seen in fairly low-order effects near the loop corners. This difference can be attributed to the fact that Lemma integrates around a current source, using horizontal electric dipoles. Leroi and most other codes decompose the surface area of the loop and approximate the surface with vertical magnetic dipoles.
Attachments (10)
- Leroi_ediff.png (30.1 KB) - added by tirons 18 months ago.
- Leroi_ecomp.png (34.4 KB) - added by tirons 18 months ago.
- Leroi_ecomp_20m.png (35.3 KB) - added by tirons 18 months ago.
- Leroi_ediff_20m.png (30.9 KB) - added by tirons 18 months ago.
- Leroi_bdiff_20m.png (27.7 KB) - added by tirons 18 months ago.
- Leroi_bcomp_20m.png (23.7 KB) - added by tirons 18 months ago.
- Leroi_bcomp_20m_imag.png (30.8 KB) - added by tirons 18 months ago.
- Leroi_bcomp_20m_real.png (24.9 KB) - added by tirons 18 months ago.
- Leroi_bdiff_20m_imag.png (30.4 KB) - added by tirons 18 months ago.
- Leroi_bdiff_20m_real.png (28.7 KB) - added by tirons 18 months ago.
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