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  2. Fluids - General
  3. My CFX run is failing immediately with the following error: WHAT = MACH_FL1 Action = RETURN Calling routine || = CONTROL_LOOP CRESLT = CVAR What does this mean and how can I resolve it?

My CFX run is failing immediately with the following error: WHAT = MACH_FL1 Action = RETURN Calling routine || = CONTROL_LOOP CRESLT = CVAR What does this mean and how can I resolve it?

Tagged: 2019 R1, BCs & Interfaces, cfx, compressible-flow, fluid-dynamics, General, materials
    • March 17, 2023 at 8:58 am
      FAQFAQ
      Participant

      This error is most often caused by the presence of an interface between two fluid domains that contain different fluids. This creates a conflict (since the speeds of sound are different) and throws an error for the Mach number retrieval.

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