Uknown error with jet engine simulation

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Hi there, thank you for using the forum! I have some comments regarding your case:

  1. The mesh is pretty coarse, try to increase the fineness, and maybe add a few refinements as well
    Standard Mesher | Meshing for CAE | Documentation | SimScale
    How to Check and Improve Mesh Quality | SimScale

    mesh clip
    mesh clip1782×1193 251 KB

  2. Try to increase the domain’s size :smiley:

  3. Can you explain to me the reasoning between the Custom boundary conditions instead of the ‘Slip wall’?

Also, 20000 degrees/sec does not correspond to 20000 rpm, so you might want to check this. And for these high RPMs, we would have supersonic flow, right?

Best regards,
Fillia

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