Fluids

Fluids

Boundary Conditions – Fluent

    • ErickLuoying
      Subscriber

      Hello everyone,

      I have defined all named selections correctly in the mesh environment. However, when I transfer it to fluent, it changes one of the regions from inlet to interface --> wall.

      How could I force this region to be an inlet?

    • Rob
      Ansys Employee
      Which region? Inlets can only have cells on one side, so check the model.
    • ErickLuoying
      Subscriber
      Hello Rob The image below shows what must have happened (this time from Fluent Meshing environment where Fluent has correctly considered the boundary conditions (in this case, an inlet)).
      But when I use the same geometry by Mesh environment, Fluent considers an interface and not an inlet (as shown in the first comment).



    • DrAmine
      Ansys Employee
      What do you mean with Mesh Environment?
      Anyway: you can always change the type of boundary at solver stage.
    • Rob
      Ansys Employee
      If you're using Workbench Meshing you can find surfaces in close proximity to be falsely flagged as interface pairs. Fluent Meshing doesn't have a check so won't do this. In Workbench Meshing look in the Contacts section and see what it's doing: if you have share topology active there shouldn't be any contact pairs.
    • ErickLuoying
      Subscriber
      Thank you, Rob! I have checked and changed some contacts and the problem is solved!!
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