Problem of solving

Xiaodong
Xiaodong Altair Community Member
edited October 2020 in Community Q&A

Hallo, I have built a 3D Modell of a electrically excited synchronous machine. During the solving a problem happend ' Conductive region : SIGMA must be <> 0Impossible to continue to solve problemIncoherence of physical properties'. It can not be solved. But I dont know why it happens.

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Answers

  • asoualmi
    asoualmi
    Altair Employee
    edited November 2019

    Hi,

    You are right when I solve the project I get the error message : ' Conductive region : SIGMA must be <> 0Impossible to continue to solve problemIncoherence of physical properties'.

    To fully understand the problem, I proceed as follows:

    • I delete all the isotropic resistivity of the materials

    • I solve the project >> the solving is ok

    • I add the resistivity of the first material: ALLOY_409

    • I solve again the project >> the solving work well

    • I do the same thing for the materials: GENERISCHER_MAGNET and VACODYM_677_AP

    • The solving work well

    You will find attached the Flux project ready to solve.

    I will check in more details, why with initial project we get the error message.

    Best regards.

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