Fluids

Fluids

Can I use C_K_L in DEFINE_PROPERTY macro?

    • Weiqiang Liu
      Subscriber

      Hi All,


      I want to use DEFINE_PROPERTY macro to define thermal conductivity of fluid. The expression for fluid thermal conducivity is (Kg+additional terms) in which Kg is original thermal conductivity of fluid. I am wondering can I just use C_K_L(c,t) to access Kg and then add additional terms. Finaly I can return (Kg +additional terms) to fluent solver.


      However, I am confused about the logic. Can I access thermal conductivity before  I even define it?


      best regards


      weiqiang

    • DrAmine
      Ansys Employee

      What is the underlying law behind Kg?

    • Weiqiang Liu
      Subscriber

      the literature do not make this very clear. Maybe it's constant or calculated by kinetic theory. Personally, I just use kinetic theory to calculate thermal conductivity of single species and use mass weighted average method to yield thermal conductivity of mixture.


      Best regards


      Weiqiang

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