Different results are strange with same definitions but different physics

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Dear all,

I am simulating a pm_motor that I defined the magnets with Ampere Law. I used the same value of remenant flux density. When I reached the result, the result in magnetic field is normal but in rmm field is zero. The magnetic insulation is in same condition. I uploaded the pictures of the results. Have you met this problem? How can I solve the problem. Thanks.

Regards Joey



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