Fluids

Fluids

Turbulent model for natural convection problems

    • FERO86
      Subscriber

      I am solving Rayleigh-benard convection problem inside a rectangular cavity, with bottom plate constant high temperature , side walls insulated, top plate constant low temperature. Fluid is water.

      Which turbulent model is best applicable for this problem ?

    • Rob
      Ansys Employee
      I tend to favour RNG k-e, and others will suggest the k-w model.
    • DrAmine
      Ansys Employee
      Hehe :) Yes I belong to the ones who will favor omega based approaches here. But at the end I would expect similar results. Much more important is that you account for density variations and you track the mass of the water in the system + Resolving the boundary layer (thermal) as the Pr>1.
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