Error compresible simulation

Sergio González
Sergio González Altair Community Member
edited October 23 in Community Q&A

Good afternoon,

I am trying to perform a simulation taking into account the compressibility of the air and I always get the same error. I have tried changing the material as ideal gas air, absolute pressure in the solver and output pressure of one atmosphere, and still the same error continues. I attach an image of the error I get in the simulation log.

 image

Please, can you help me with the problem? 

Thank you very much. 

Best regards, 

Sergio

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Answers

  • acupro
    acupro
    Altair Employee

    One of the versions was writing the input file incorrectly. You'll need to edit the input file, and use

    type = fluid

    instead of type = ideal_gas

    Also - the compressible solver is intended for internal flows at transonic/supersonic (up to Ma 1.5 or so) speeds. If you're below Ma 0.7 or so, you can use the standard/incompressible solver, but still use ideal gas density to capture variable density effects.

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