Periodic array using spherical wave expansion

shan25_22144
shan25_22144 Altair Community Member
edited October 2020 in Community Q&A

In the attached model I have periodic array with each element is defined as a spherical wave source. After the simulation run when I tried to open the postfeko, it takes pretty long time to open the file and then it reports error message. Until now I can't open postfeko to view results.

 

 

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Answers

  • Mel
    Mel Altair Community Member
    edited September 2020

    The POSTFEKO file is about 6.8 GByte and this is due to the excessive number of modes (194 038) included in the spherical modes source.

    Using just one source and running the solver shows in the out file:

     

    EXCITATION BY AN IMPRESSED SPHERICAL MODE

     Name:                          so_0
     Excitation index:              1
     Frequency in Hz:               FREQ =    3.50000E+10
     Wavelength in m:               LAMBDA =  8.56550E-03
     Source position in m:          x = -9.42857E-02, y = -9.42857E-02, z =  0.00000E+00
     Orientation of source:         THETA =    0.00
                                    PHI =    0.00
     Number of modes:                 194038 (of which 194014 suppressed)
     

    If you reduce the number of modes and thus the sph file the POSTFEKO file will be reduced to a size that you can open/view.

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