Fluids

Fluids

Calculation of void and volume fractions in fluent

    • snr
      Subscriber
      How can we calculate the void and volume fraction in multi phase flows? It would be great if it were explained with an example.
    • DrAmine
      Ansys Employee
      To calcuate the void in your system assuming you are looking into a "reduced" quantity so you just volume integral the volume fraction to have the whole "void" in m³. Volume Fraction is nothing else than the spatial/temporal/ensemble average of the indicator function (which does only return 1 if phase is there or 0 if not) and so is a sort of probablity in terms of volume to find certain phase in a certain volume.
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