Problem with fully developed velocity profile groovyBC in 2D axi-sym mesh
Hello All,
I am studying a premixed jet flame using reactingFoam in a 2D axisymmetric mesh and using a groovyBC to simulate fully developed turbulent flow through the premixed inlet. The geometry has a wall beside the premixed inlet (at x=0.0075m). I am using the following code to set up my velocity profile: Code:
Inlet Code:
x y z u(m/s) v(m/s) w(m/s) |
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To check which values groovyBC sets I usually a) have a look at the written field file b) open the case in paraview. Deselect internalField, select the patch in question and inspect it in PV |
Hello Bernhard. Thanks for your reply . I am sampling using the "uniform" technique in the sample utility, however I have deleted a couple of columns of my data to keep it short.
I was wondering if my problem has something to do with the mesh. My axisymmetric domain has the axis in the vertical - Y direction , whereas most of the problems I have seen have their axis in the horizontal X direction. Will my mesh be still consistent with the OpenFoam format? Please let me know. Thanks! |
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Hi Bernhard,
So instead of having a groovyBC i just put in a fixedValue bc (0.0 13.0 0.0) for my inlet. The domain next to the inlet is a wall (0.0 0.0 0.0). I used the "midpoint" sampling technique with 'cell' interpolation and the following in the output I got for velocity at inlet after 0.01 seconds. Code:
distance, Ux, Uy, Uz I have attached an image of the closeup of mesh (the highlighted part is my inlet) |
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The sample utility is good for looking at cell values. If I want the face values on a patch I usually have a look at the field-file or check it in ParaView |
But shouldnt atleast the Ux be 0 because my velocity is only in the y-direction?
The Ux seems to be pretty signicant and not close to zero unlike the Uz. |
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