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wallShearStress from OpenFoam to Tecplot

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Old   August 24, 2012, 13:02
Default wallShearStress from OpenFoam to Tecplot
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Hello,

I use the command "wallShearStress" in OpenFOAM and then I post process in tecplot (foamToTec360).

The problem is that, when I open TecPlot, the shear stresses are zero everywhere...

Could you explain me why?

Thank you!
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Old   August 26, 2012, 15:42
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Hi Daniele,

I don't have Tecplot to confirm this, but there are two possibilities:
  1. You're looking at the volume results, which are zero by default, since wallShearStress only calculates for the walls. You should try looking at the results on the walls+patches, not the volume.
  2. Or foamToTecplot360 is incomplete and doesn't convert values that only exist on the walls+patches.
Best regards,
Bruno
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Old   August 30, 2012, 18:17
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foamToTecplot360 is maybe incomplete...
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Old   August 31, 2012, 05:26
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Hi Daniele,

You can try this utility: https://github.com/wyldckat/reconstr...ctSurfaceField - it can reconstruct the values on the walls onto the cell centers near the wall and this way you could represent the values in Tecplot.
Although I haven't tested if it will work as intended for the wall shear stress, so it's advisable for you to compare the results in ParaView first.

reconstructSurfaceField is not present in the official OpenFOAM distributions, so you'll have to follow the instructions from the beginning of that page.

Best regards,
Bruno
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Old   November 4, 2013, 11:03
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Quote:
Originally Posted by danielec87 View Post
Hello,

I use the command "wallShearStress" in OpenFOAM and then I post process in tecplot (foamToTec360).

The problem is that, when I open TecPlot, the shear stresses are zero everywhere...

Could you explain me why?

Thank you!
The data ist stored in the boundaryMesh_XX.plt files in the boundaryMesh folder with XX the number of data sets.
You can easily open and plot the data in tecplot.

Regards,
Kopy
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