Fluids

Fluids

How to calculate Wall Temperature using AnsysFluent

    • Sam001
      Subscriber

      Hello,


              How to calculate Wall Temperature when you have more than one wall surface, 


                                       Fin area/Total area


                                      and Total heat Transfer area/volume between plate  using AnsysFluent?


       



      Thanks,


      Sam

    • DrAmine
      Ansys Employee
      You already have access to it at walls. What is still missing?
    • Sam001
      Subscriber

      Amine,


                Am I to use the net for the overall Wall Temp?


      Thanks,


      Sam

    • Rob
      Ansys Employee

      Depends which wall you want to the data for. You need to work out what you want data for. 

    • Sam001
      Subscriber

      rwoolhou,


                    ok, what of fin area/Total area?

    • DrAmine
      Ansys Employee
      More details: what do you want to Do?
    • Sam001
      Subscriber

      Amine,


                 finding Stanton number?


      Regards,


      Sam

    • DrAmine
      Ansys Employee

      So you need averaged values along the wall (say like area-weighted) and the whole area of the wall. Stanton is: St = Nu / (Re * Pr) so you need to use some "global" charateristics for your flow. Fluent provides Surface Stanton Number as post-processing variable based on the reference values.

    • Sam001
      Subscriber

      Amine,


                Please, can you break down the term "global" characteristics?


      Regards,


       


      Sam

    • DrAmine
      Ansys Employee

      Reference Temperature, Reference Length for example to define Nu and Re.

    • pssjn
      Subscriber

      is it possible to calculate the wall temperature of 'zero thickness wall'? what is the best way to calculate natural air ventilation rate of a room in fluent?


      Best regards,


      Farhan

    • DrAmine
      Ansys Employee
      Yes you can. Please mark this as is Solved and open new discussion for your new question.
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