Fluids

Fluids

‘Temperature Divergence in AMG Solver’ in Simulation of Heat Exchanger with Thermoelectric generator

    • Waleed Ghayas
      Subscriber

      I am simulating a hexagonal heat exchanger with a TEG chip attached to it. To simply the simulation, we only used one-sixth of the heat exchanger for the simulation. However, when the simulation was run, the temperature solution diverged. 

      When I replaced the TEG chip with a simple block of ceramic material, keeping all boundary conditions the same, the simulation ran without
      divergence.

       

    • mli
      Ansys Employee

      Please provide more details on boundary condition settings.

    • Waleed Ghayas
      Subscriber

      I am using a Realizable k-epsilon turbulence model with standard wall functions. The boundary conditions are shown below: 

      h_ is 60 W/m2K

      h is 600 W/m2K

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