General

General

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?

    • 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.