The difference Between a UDF and the UDF Fan model

    • maria.marinari

      Hi Community, I was wondering if someone could explain what the difference between using the User Defined Fan Model (7.8 of the User Manual) in comparison to hooking standard UDF into the profile function into the dialogue box. Is it that a normal UDF won't update throughout the simulation and that the User Defined Fan Model will? Would really appreciate any information. 

    • Rob
      Ansys Employee

      The UDF will do what you told it to, the fan model works as described in the manual. 

      Note, putting a fan across the whole model (eg across a duct) can have interesting consequences depending on how you set the flow boundaries.  

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