Wrong parameter in Magnetic/FluxTubes/Material

[AHaumer]

The parameter sigma = 3.22e6 in Magnetic/FluxTubes/Material/HysteresisTableData/M400_50A seems to be wrong,
compared with sigma = 2.22e6 in Magnetic/FluxTubes/Material/HysteresisEverettParameter/M400_50A.
Thanks to Hans Hell for this report!
sigma is the Electrical conductivity of material [S/m].
This value varies a lot with silicon doping. I'll try to search for parameters given by steel manufacturers.
@casella should we try to fix this for 4.1.0?

[AHaumer]

I found https://www.emt-net.de/data/uploads/motorkomponenten/allgemeine-informationen-zu-elektroblechen.pdf:
Spezifischer Widerstand = Resistance = 0.48μΩm which leads to sigma = 2.08e6 S/m
Therefore the value in TableData seems to be a typo.

[casella]

We could do it, the question is how many consequences does this have. Is it affecting any reference results? Do we need to report this in the release notes?

You can start by opening a PR on master, then we can decide whether to put it in 4.1.0 or not.

[AHaumer]

I'll create a PR today's evening, also suggesting a short text for the release notes.
No this material M400_50A (there are 8 different material data sets in FluxTubes.Material.HysteresisTableData) is not used in an example or in Modelica.Test, therefore no reference results are affected,

[AHaumer]

See PR #4544

[casella]

@Esther-Devakirubai this will need to be back-ported to maint/4.1.x and a note added to the release notes about model fixes.