Joule Losses in Volume Regions

Hi,

I am modeling a synchronous permanent magnet motor with Flux 3D and wish to compute Joule losses in multiple contiguous volume regions corresponding to the magnets and the bracing circling the magnets. So far I have tried two strategies:

• assign solid conductors regions to these volumes and couple them with a solid conductor electric component and then create sensors to compute the Joule losses on the circuit components
• assign magnetic non-conducting regions to these volumes and then create sensors to compute Joule losses on the volume region

In Flux 2D, the first strategy was effective and produced satisfying results but in 3D, it leads to an error interrupting the solving shortly after it starts.

The second strategy seems to produce inconsistent results: the computed Joule losses are always null.

I would appreciate any help in resolving this issue and thank you in advance for your assistance.