Hello everyone, I have results with OpenFOAM including p,T,U outputs. Due to some reasons, I can't use wallShearStress or wallgradU utility in OF. So, I have to calculate it on Paraview. I saw many topics related to that on google, but I could not find a satisfactory answer. My case is 3-D, compressible and laminar but we can think about incompressible and may be 2-D.
I think the most important part for WSS is to calculate velocity gradient. My unsolved problem is to calculate that. How can I calculate gradients on the wall? I have no-slip wall, that is u=0 and with *Gradient of Unstructured DataSet/Compute Derivatives *filters, I obtained 0 on the wall. I think the values in the nearest mesh to the wall should be accounted for. To do that, what should I do? *Note:* 1. The walls are not aligned with a coordinate axis. For this part, I tried to extract the wall surface and generate normal vectors. 2. As an alternative to get directly on wall, I tried to get slice a little bit over the wall surface and then take surface vector on slice then gradient of unstructured dataset on surface vector. That gives me a result but I am not sure it's true. This may be simple for you, sorry for that. Thank you in advance, Ahmet
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
