Fluids

Fluids

coordinates in profile ?

    • FrankR
      Subscriber

      Dear Community,



      writing a profile provides the local distribution of a selected output quantity over the area of the selected surface. The coordinates of that surface are written by default.


      So what is output if I select "x-coordinate", "y-coordinate" and "z-coordinate" from the list of output parameters ? These coordinates differ from the default ones.


      Does this have anything to do with node locations and cell center locations ?


      Your kind assistance is greatly appreciated.


      Thank you & Regards


      FrankR

    • Rob
      Ansys Employee

      Profile should pick up the facet centre (when written), and use that along with the value you've specified or calculated. Note, if you manually write a profile that doesn't tie up with the mesh you use (ie you write a "square" profile and mesh with tri cells) Fluent will interpolate the input data. 


      Did you write the profile or a parameter? 

    • FrankR
      Subscriber


       Hello rwoolhou
       
      thanks for your time. I define an object "quelle" in Fluent. It is of approximately rectangular shape, the top face is flat and at z = 1.045 m.


      I obtain the data attached below when requesting "x-coordinate", "y-coordinate" and "z-coordinate" . Are these to be interpreted as the center points of the cells that have one face in common with the top face of "quelle" ?


      Thank you once more & kind regards


      FrankR


       
      ((quelle point 14)
      (x
      1.1833338
      0.93350226
      1.2666668
      0.9333334
      1.0168637
      1.0166949
      0.93336153
      1.2668356
      1.016667
      1.1835303
      1.2666671
      1.1833615
      0.93333381
      1.2666949
      )
      (y
      1.782999
      1.2170076
      1.6496452
      1.649794
      1.3115374
      1.5445181
      1.4449455
      1.2168703
      1.7830526
      1.3114001
      1.8830856
      1.544423
      1.8831391
      1.444713
      )
      (z
      1.045
      1.045
      1.045
      1.045
      1.045
      1.045
      1.045
      1.045
      1.045
      1.045
      1.045
      1.045
      1.045
      1.045
      )
      (x-coordinate
      1.1900868
      0.92855662
      1.2666667
      0.95288461
      1.0180861
      1.0154058
      0.95290571
      1.2387316
      1.0269746
      1.1762527
      1.2705796
      1.1847528
      0.92994529
      1.2472528
      )
      (y-coordinate
      1.7798049
      1.2188135
      1.6496453
      1.620213
      1.3157703
      1.5412561
      1.4665766
      1.2472525
      1.7716049
      1.3181498
      1.8846772
      1.5328778
      1.8791155
      1.4580953
      )
      (z-coordinate
      1.0730462
      1.0913862
      1.0913745
      1.0710349
      1.0730377
      1.0710349
      1.0710349
      1.0821418
      1.0867357
      1.0821418
      1.0906723
      1.0856481
      1.0912904
      1.0856481
      )
      )

    • Rob
      Ansys Employee

      Possibly: the input is the facet centre and it looks like your out values could be cell centre. If you use an inflated mesh from that surface what do you get?

    • FrankR
      Subscriber

      You expect too much from me. I accept that my conjecture is at least approximately correct. With 2 months to go before the end of my contract I have little time to dig any deeper in this aspect.


      Thanks


      FrankR

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