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Doubt about reversed flow in ansys fluent

    • Ashen Perera
      Subscriber

      Hi, 

      I am Ashen and I doing a CFD modelling of a shell and tube heat exchanger in FLUENT. The solution appears to be converging in terms of the residuals but the reverse flow warning seems to be appearing. Should I be concerned about this or is there a solution to this problem and causes as I am relatively new to using Fluent. I have attached images. 

    • Rob
      Forum Moderator

      Reverse flow means you have material entering the domain at an outlet, or leaving at an inlet. Strictly speaking it's not a problem, but if you don't know what it's happening, or you have incorrect boundary values set it can influence the result to give a physically incorrect result: Fluent may converge as the solution is correct for the values set. 

      What does the post processing tell you about the flow field?

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