Population balance model – Using the Inhomogeneous discrete method

    • VinceMaes123



      I have two questions about using the inhomogeneous discrete method.

      1) How exactly do you define a binsize file? I tried to define it for two phases in a .txt file like:


      (("phase-2" (0.1 0.2 0.3))

      (("phase-3" (0.01 0.02 0.03))


      But this doesn't seem to work.


      2) When I want to model two phases with the same sizes of particles (see example in figure)

      , I get an error "Binsizes for secondary phases are overlapping". Is there an easy way around this error that allows to use two phases with the same binsizes?


      Thanks in advance!



    • Rob
      Ansys Employee

      What happens if you drop to 1 active secondary phase & set up for "phase-2" and "phase-3" under "phase"? It's greyed out in your model. 

    • VinceMaes123

      Hey, thanks for the reply. The "phase" seems always to be greyed out for the Inhomogeneous discrete method, so I can't play around with that. The main problem I'm having now is that I don't know how to write a Binsize file (textfile) for this method.

      For the discrete method the textfile looks like (e.g. for 3 bins with sizes 0.1 0.2 0.3)


      But I don't manage to produce a valid file for the inhomogeneous discrete method.

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