| I recently tried VECTOR FIELDS OPERA V12 and did a simple 2D cogging torque calculation of a DC motor. The calculation is fast and the modeling is convenient. The functions are similar to those of ANSOFT and INFOLYTICA series software. Since there is no comparison with the experiment, the accuracy cannot be commented . 
DC motor model and B-field diagram
B Vector
Magnetic lines of force
H Field Diagram
COGGING TORQUE CURVES
Air gap B value
Synchronous motor simulation results (example)
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