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Joule Heating Not Similar When Using Symmetry Boundary Condition

    • jdo60
      Subscriber

      Hello, 
      I have been using the steady-state electrical module with a symmetry boundary condition, and I have been getting Joule Heating results that are not comparable to the full model. I am running half the current, but otherwise the same boundary conditions, analysis settings, etc... but only the solution voltage has comparable numbers (53V for half model, 55V for full model). I am also unable to get the half model to display the other half using the symmetry beta feature. 

      Are these Joule heating results within the range of error for the symmetry boundary condition?
      How can I get the half model to display the other symmetrical half? 
      Do I need to adjust any of my boundary conditions to account for the half model (ex, electrical current, temperature, convection, etc...)? 


      Symmetry Display Conditions:

      Half Model: 

      Full Model: 

    • Erik Kostson
      Ansys Employee

      Hi

      Correct – half symmetry half the current.

      In theory if you have the same meshes on both models then the joule heat should be similar between them (all results).

      For viewing the symmetry, set number of repeats = 2, DY = to the length of half model in Y say, and Method= Half.

      All the best

      Erik

    • jdo60
      Subscriber

      Hello, 
      Thank you for the response, the model works as intended now. 

      Joshua 

    • Erik Kostson
      Ansys Employee

      Happy to help - closing here as others might find this useful.

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