Hershcel Bulkley Model in Fluent

    • MohamedKhaled1


      Currently i am using Herschel Bulkley model in Fluent. One of the parameters required is the fluid critical shear rate; I do not know how this parameter can be computed. All experimental data reported in the literature that i have using Herschel Bulkley model is reporting n, k and tau and there is no mentioning of fluid critical shear rate value.


      Kindly i am asking how can i calculate this value or if there is a certain range i should work within.


      Note: I am working on Viscous non-Newtonian flow in a horizontal pipe


      Thanks in advance;


    • DrAmine
      Ansys Employee

      Wiki article stating something else:



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