[Paraview] Wall Shear Stress
Hi, I was wondering if there is a possibility to display the wall shear stress on a wall.
Since the velocity on my wall is 0, I cannot compute any gradient of U for defining the shear stress as: TAU = MU . du/dn
I assume there is a turnaround...
Any idea or experience?
Thanks in advance
A Good Afternoon to you :-)!
There is a utility in OpenFOAM called "wallShearStress".... this utility should be run in your case folder as follows:
> wallShearStress -latestTime <<----- In case you want only the last time step
> wallShearStress -time <time> <<----- For a specific iteration
> wallShearStress <<----- For all time steps
The utility writes a field to each time step called "wallShearStress", which can be directly post-processed in Paraview like you post-process any other field....
Hope this helps :-)!
yes I saw this utility just after I posted the thread.
I am working on it.
Thanks for the confirmation
the formular tau=mu*dc/dn from did you get that. For my work, I need a three dimension citation of that formular and not tau = mu du/dy.
It comes from the stress tensor, ie a matrix:
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