Fluids

Fluids

wall adjacent temperature

    • hugo CFD
      Subscriber

      Hi


      In the fluent, surface integrals section, there is an option for the temperature called "wall adjacent temperature".


      This temperature refers to the temperature of the fluid in the layer immediately after the wall?


      What distance or fluent do you consider between the wall and this considered layer?


       


      Thanks


      Hugo

    • DrAmine
      Ansys Employee

      That is te temeprerature of the fluid cell next to the wall. The distance will depend on your mesh.

    • hugo CFD
      Subscriber

      What is the difference between Wall temperature adjacent and static temperature?


       


      Thanks

    • DrAmine
      Ansys Employee

      Wall adjacent temperature is the temperature of the cell near the wall and can be plotted or displayed only at wall. The static temperature is the temperature variable accessible overall. Wall Adjacent Temperature is equal to static temperature at wall with node values switched off.

    • hugo CFD
      Subscriber

      So static temperature with node values switched on is equal to the wall temperature?

    • DrAmine
      Ansys Employee

      Yes but if you enable node values for Static Temperature at the Wall that would add some averaging from face centroids. This means you will have some values influenced by neighboring boundaries.

    • hugo CFD
      Subscriber

      Still relative to the wall temperature adjacent. On a surface that limits a solid of a fluid, the adjacent wall temperature is always relative to the fluid, right?

    • DrAmine
      Ansys Employee

      At the wall (which is solid / fluid boundary) the wall adjacent temperature is the relative to that fluid. 

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