Hi Paulo, I cannot be sure but I wonder if this is due t the span wise resolution becoming evident. If you are running the Fourier code (2.5D) what SVV in this direction. Then we sometime observe this sort of feature where the SVV is draining the solution energy and then the cut off can have a rather regular pattern of this form. Not sure if others have different explanation for the pattern. Cheers, Spencer. On 17 Apr 2021, at 04:44, Paulo henrique Ferreira <paulohf_100@yahoo.com<mailto:paulohf_100@yahoo.com>> wrote: This email from paulohf_100@yahoo.com<mailto:paulohf_100@yahoo.com> originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list<https://spam.ic.ac.uk/SpamConsole/Senders.aspx> to disable email stamping for this address. Hi, I ran a typical simulation of a circular cylinder at Re = 3900, but now I'm having to deal with a small issue in the post-processing. I'm unable to properly obtain the wall shear stress, some ripples appear along the span, as shown in the screenshot. The C0 projection (FieldConvert module) has not worked and I'm not sure if it should have worked to the surface mesh obtained from the XML file. Does anyone know what I should do to fix this problem or have any other suggestions in this case? Thank you! Regards, Paulo Henrique PhD Student Instituto Tecnologico de Aeronautica - ITA 12228-900 - Sao Jose dos Campos - SP - BRAZIL <nektar.jpg>_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users