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How to extract the magnitude of the magnetic flux density at the centroid of each element of the 2D mesh

User: "Marco Biasion"
Marco Biasion
Altair Community Member
Updated by Marco Biasion

Dear all,

I need an help for implementing what has already been discussed (maybe) in a previous post. Here goes the link:

https://community.altair.com/community?id=community_question&sys_id=c9c676521b812c94c4dfdbd9dc4bcb6d

Basically, I need to post-process, from a 2D time-stepping simulation, the value of the B field (magnetic flux density) at the centroid (barycenter) of each triangle (element) of my second-order mesh.

1) Is it possible to do this in FLUX 2D?

2) If yes, according to the previous post on the forum (see the link), which macro shall I use (name of the macro)?

Thank you very much in advance for the help!

Marco

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    User: "asoualmi"
    asoualmi
    Altair Employee
    Updated by asoualmi

    Hi,

    Yes, it is possible to do it.

    The macro is EXPORTAREAAVERAGEVALUE.PFM . As a results:

    • An excel file:
      • Area of each element
      • The average value of the flux density on the barycenter of each element

    Thanks.

    User: "Marco Biasion"
    Marco Biasion
    Altair Community Member
    OP
    Updated by Marco Biasion

    Hi,

    Yes, it is possible to do it.

    The macro is EXPORTAREAAVERAGEVALUE.PFM . As a results:

    • An excel file:
      • Area of each element
      • The average value of the flux density on the barycenter of each element

    Thanks.

    Thank you very much Abdesssamed for your fast and kind response.

    I saw the description of the macro and it is said that:

    "This macro is used to export the coordinates of the first order nodes of each face elements of one or more face regions...".

    1) What does "first order nodes" mean in this description? I have a second-order mesh with triangular elements, so I don't think it is related to the mesh order, right?

    2) Can I export the 'Mod(B)' quantity or is it just needed to export 'B'?

    Thank you again in advance.

    Marco

    User: "asoualmi"
    asoualmi
    Altair Employee
    Updated by asoualmi

    Thank you very much Abdesssamed for your fast and kind response.

    I saw the description of the macro and it is said that:

    "This macro is used to export the coordinates of the first order nodes of each face elements of one or more face regions...".

    1) What does "first order nodes" mean in this description? I have a second-order mesh with triangular elements, so I don't think it is related to the mesh order, right?

    2) Can I export the 'Mod(B)' quantity or is it just needed to export 'B'?

    Thank you again in advance.

    Marco

    You are welcome. As mentioned in the attached PDF the goal of the macro is:

    • first order nodes of each face elements of one or more face regions (this not related to the mesh order)
    • calculate the mean value of a spatial quantity at the barycenter
    • area of each face element

    Thanks.

    ExportAreaAverageValue.pdf
    User: "Marco Biasion"
    Marco Biasion
    Altair Community Member
    OP
    Updated by Marco Biasion

    You are welcome. As mentioned in the attached PDF the goal of the macro is:

    • first order nodes of each face elements of one or more face regions (this not related to the mesh order)
    • calculate the mean value of a spatial quantity at the barycenter
    • area of each face element

    Thanks.

    Thank you again.

    Another point: it seems that the macro extracts the data for a single time step of the solution (the current computation step), right? Is it possible to extract those data for each time step in a 'transient' simulation?

    Thank you

    Marco

    User: "asoualmi"
    asoualmi
    Altair Employee
    Updated by asoualmi

    Thank you again.

    Another point: it seems that the macro extracts the data for a single time step of the solution (the current computation step), right? Is it possible to extract those data for each time step in a 'transient' simulation?

    Thank you

    Marco

    Yes you are right. I think there is a way to do it for the step time. I will check and keep you informed.

    THanks.

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