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  3. FLUENT – 1st Order and 2nd Order Upwind Scheme – Same Result

FLUENT – 1st Order and 2nd Order Upwind Scheme – Same Result

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    • December 9, 2021 at 3:33 pm
      user8165
      Subscriber

      Hi - I'm getting the same results for a simple problem for both the 1st and 2nd Order Upwind scheme across a variety of meshes in Fluent.

      Problem is 2D laminar flow between two flat plates, modelled with periodic interface with a constant pressure gradient.

      Any suggestions as to why my results are exactly the same for both discretisation schemes?

      Apologies I'm fairly new to Fluent so let me know if there's more info I can provide!

      TIA

    • December 9, 2021 at 6:06 pm
      DrAmine
      Ansys Employee
      Perhaps you are lucky with the grid you are using and gradient corrections are small. First assess if both cases are really deeply converged
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