3D Model - Electric machine - equivalent to moving band in 3D

Hello,

I am trying to model an axial flux machine (two stators, one central rotor disc). I found a few (great) 2D examples using the moving band method. I am not sure if such 3D models already exist and what method should used for simulation purpose.

Attached the geo file and a PNG of the preview of a example machine (4 poles, 6 teeth).

AFM_picture 03_3D_AFIR_4p6s.geo_unrolled

NB: the machine might not have any symmetry, as stator shifting, skewing etc. might be implemented. The whole machine needs to be simulated.

Setup - summary:

• A double stator single rotor axial flux machine
• Goal: 3D geometry and simulation (torque, losses)
• Based on gmsh & GetDP

Questions:

• Is there an equivalent to 2D moving band for 3D geometries?
• Any knowledge of existing similar projects? (links to papers/code source)
• What would be the best practice/which example to follow to simulate such machine?

Thank you for the help!