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Dead zones during Fluent Watertight Meshing

    • Lumko
      Subscriber

      Good day, 

      I am trying to model the flow of water that is pumped out of a tank by a submersible pump through a direct coupled discharge pipe.  

      When trying to generate the surface mesh, Fluent splits the discharge pipe, and the fluid zone in the pipe, into three domains that are dead zones. I am not sure why it does this. Could you kindly advise on its cause and solution?

       

      ------------------------- --------------------- -------------------- ---------------- ----------
                           name skewed-cells (> 0.80)    averaged-skewness maximum-skewness face count
      ------------------------- --------------------- -------------------- ---------------- ----------
       
                    outlet_pipe                     0           0.01494663       0.49299298      53250
                     sump_fluid                     0          0.014004151       0.79789778      55244
                   dead1-outlet                     0          0.014314581       0.49299298      27304
            dead2-pipe_exterior                     0          0.018713448       0.79789778      35734
             dead0-sump_fluid:1                     0          0.017121627       0.42576109      19758
                      pump_flow                     0          0.014564433       0.48229695      17618
                           pump                     0           0.01100951       0.48229695      40504
      ------------------------- --------------------- -------------------- ---------------- ----------
                           name skewed-cells (> 0.80)    averaged-skewness maximum-skewness face count
      ------------------------- --------------------- -------------------- ---------------- ----------
       
                            fff                     0          0.014714286       0.79789778     144896
       
      ---------------- After Surface mesh, the model consists of 4 fluid/solid regions and 3 voids.
       
      ---------------- Surface Meshing of FFF complete in  0.84 minutes, with a maximum skewness of  0.80. 
       
       
      ---- Warning--- During Surface mesh, failed faces were identified and automatically repaired.

       

      Thanks and regards,

      Lumko 

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