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Divergence detected in AMG solver and floating point exception in ANSYS Fluent

    • Rokual
      Subscriber

      I am trying to quantify the heat exchange of an empty aluminium box in the hight atmosphere (25 000 m)

      But I keep getting an error message (see image)


      I have tried this command in the Fluent console:
      /mesh/repair-improve/improve-quality

      It happens right away during the calculation
      I don't have a dynamic mesh
      My skewness seems big, but I don't know how to improve this.


      Can you help me, I don't know what is happening.

    • Rokual
      Subscriber



    • Rokual
      Subscriber

      Issue solved.

      The problemed seems to have been the mesh.
      I have also change some bondary set up and it seems to work now.The new mesh

    • PRABUPETER
      Subscriber

      Dear Rokual,


      Can you share in detail on how you fixed them. I also have the same problem.


      Thanks for your help and time.


      Thanks


      Prabu

    • sahba1997
      Subscriber

      thanks! that was awesome!


       
    • Krasa
      Subscriber
      I am also having same kind of problem. Can you please help me to get a fine mesh for my simulation. Thank you so much.n
    • Rob
      Forum Moderator
      From the above, don't use the hex dominant method (it's for FEA only) and do the tutorials (click on Help and have a look). n
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