1 Reply Latest reply on Apr 26, 2018 3:02 AM by Jon Dahlgren

    Flow simulation around guide vanes in centrifugal pump as turbine (Francis Turbine)

    Brian O. Dughaill

      Hi all

       

      This is for my thesis so would appreciate all the help I can get.

       

      I'm trying to assess the impact that various types of guide vanes have on the internal flow of what is essentially a Francis turbine. I have the flow entering and exiting the turbine and behaving as expected

      The problem is that, when looking at the flow trajectories, the fluid seems to be going straight through the guide vanes as if they were not a solid body but instead just there in the visual sense. The paths should be going around and this is essential for verifying which guide vane is the best suited.

       

      Pictures (one with the guide vanes, one without) have been included to show what I mean, they both have flow behaviour as if the vanes weren't there.