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  3. How to calculate swirl in Fluent?

How to calculate swirl in Fluent?

Tagged: 14, fluent, fluid-dynamics, General, General - FLUENT
    • January 25, 2023 at 7:16 am
      FAQFAQ
      Participant

      You can do this through a surface integral as follows: The swirl number is defined as the radius-weighted ratio of axial flux of angular momentum to the axial flux of axial momentum. SWIRL_NUMBER = FLOWRATE(radius*tangential-velocity) / FLOWRATE(radius*axial-velocity) You can use custom field functions to obtain radius*tangential-velocity and radius*axial-velocity. Some users use a reference radius in the denominator such that: Denominator = radius_ref*FLOWRATE(axial-velocity)

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