Thanks, but did you forget to include the name of the forum? Stephen ----- Original Message -----
> From: "Ezhilmathi Krishnasamy" <ezhkr...@student.liu.se> > To: "Ahmet Ahmet" <ahmetskyl...@gmail.com> > Cc: "ParaView" <paraview@paraview.org> > Sent: Wednesday, December 6, 2017 3:05:56 PM > Subject: Re: [Paraview] wallShearStress Calculation in Paraview > Hi Ahmet, > What you can do that is, use the filter name called extract surface. > once you get that surface either you can export those values in form of from > elements or from the points. > It might work, or you may get more clear explanation from this forum. > Cheers, > Mathi > On 6 December 2017 at 15:00, Ahmet Ahmet < ahmetskyl...@gmail.com > wrote: > > 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. T he 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 > > _______________________________________________ > 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
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