what does this warning mean ?!

Altair Forum User
Altair Forum User
Altair Employee
edited September 2021 in Community Q&A

Hello, I would like to know the meaning of this warning and whether it will affect the accuracy of the results  

 WARNING 37630: The eigenmodes calculated for CMA are not all orthogonal See also message in the output file Myantena.out

thank you, best regards!

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Answers

  • JIF
    JIF
    Altair Employee
    edited November 2017

    Hello ALM,

     

    It means that the modes that have been calculated are not linearly independent (but they should be). The first things I would try to improve the eigenmode orthogonality, is to use a finer mesh and/or switching to double precision accuracy.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Hello Alm, please attach your .cfx file so that we can check it.

  • Abhishek K M
    Abhishek K M Altair Community Member
    edited September 2021

    I am also having the same problem, and being new to feko I am unsure how to refine the mesh.

    I will attach the file below

     

  • Mel
    Mel Altair Community Member
    edited September 2021

    See this post.

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