Learning Forum

[FrankR]

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]

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]

 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]

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]

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