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Meshing: Finned Tube Heat Exchanger.

    • fulcrum
      Subscriber

      Hello, I'm new to Ansys.

      I need to model heat transfer in a pipe-in-pipe HE.

      Inner tube has many thin extruded fins: 250 in total. Tube length 100 mm.

      Now my question(s):

      1) Is this problem solvable on a ordinary PC ? 6 GB of RAM, 2.3 GHz.

      2) Any meshing methods advice before to start ?

      Please see the attached pictures:

      Heat Exchanger 
      Inner_Tube 
      Inner_Tube_2


       


       


       

    • Rob
      Ansys Employee

      What do you actually want to model? Ie fluid heat transfer to the solid, stresses in the solid etc.   From there the community can probably guide you. 


       


       

    • fulcrum
      Subscriber

      Given the inlet pressures and temperatures of the two fluids I need to model heat transfer through the finned pipe wall, outlet temperatures and hydraulic losses.
      Hot fluid (gas, combustion products) flows in the inner tube. Thanks.

    • Rob
      Ansys Employee

      OK. Given the mesh limits on the Student & Teaching software I'd look at a 2d-axisymmetric model in Fluent. You then model a slice of the geometry, and can mesh the fins with enough resolution to get that information. 


      There are some geometry & mesh requirements so have a look at the documentation before starting to work with the software. 


       

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