<div dir="ltr">This topic comes up pretty often. We should automate the above.<div><br></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature">David E DeMarle<br>Kitware, Inc.<br>R&D Engineer<br>21 Corporate Drive<br>Clifton Park, NY 12065-8662<br>Phone: 518-881-4909</div></div>
<br><div class="gmail_quote">On Sun, Sep 18, 2016 at 7:39 PM, David Thompson <span dir="ltr"><<a href="mailto:david.thompson@kitware.com" target="_blank">david.thompson@kitware.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div></div><div style="direction:inherit">Hi Fande,</div><div style="direction:inherit"><br></div><div style="direction:inherit">You should be able to use the gradient filter to compute the velocity gradient and examine the component of the gradient normal to the wall. That will be proportional to the shear stress at the wall. Is the wall aligned with a coordinate axis? If not, you will need to extract the wall surface and generate normal vectors, then dot the gradient with the normal vectors.</div><div style="direction:inherit"><br></div><div style="direction:inherit"> David</div><div><div class="h5"><div><br>On Sep 18, 2016, at 16:01, Fande Kong <<a href="mailto:fdkong.jd@gmail.com" target="_blank">fdkong.jd@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">Hi Developers,<div><br></div><div>I am solving an incompressible Navier-Stokes equations, and I have solutions for the velocity (u) and the pressure (p). Is it possible to show the wall shear stress in paraview using the velocity? </div><div><br></div><div><br></div><div>Fande Kong,</div></div>
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