Explain the TEAM-7 200 Hz measurement discrepancy

Determine the cause of the systematic discrepancy between the converged RAT-EC and finite-element simulations and the published TEAM-7 measurements at 200 Hz, and ascertain whether the simulations fall within the measurement uncertainty.

Background

The paper validates RAT-EC against the TEAM-7 benchmark at 50 Hz and 200 Hz. At 200 Hz, RAT-EC and an independently constructed, converged COMSOL finite-element model agree closely with each other, while both lie systematically above the published measurements along the 90-degree measurement traces. Mesh-refinement studies indicate that the discrepancy is not caused by numerical nonconvergence, and the independent construction of the two models makes a shared modeling error unlikely.

The measurement uncertainty was not reported in the original TEAM-7 publication, so it is unresolved whether the simulated results are consistent with experimental uncertainty. Resolving the issue would require identifying the source of the discrepancy and obtaining or locating a new 200 Hz measurement.

References

The cause of the discrepancy remains unclear. Since does not state the measurement uncertainty, it cannot be determined whether the simulations lie within it. This would require a new measurement at 200\,Hz, which to our knowledge has not been published.

— RAT-EC: Introducing a New Open-Source 3D Volume-Integral Eddy-Current Module  (2610.21315 - Mayr et al., 15 Oct 2026) in Section Validation, subsection Results