Hi Cesar, Sorry I have not looked at this case for quite some time. i had forgotten it was described in the user-guide. I think the issue is that really one needs some random noise to kick these flows. It does not look like there is one in this case. I will have a chat with Douglas to see if he has run this case recently so we can confirm how best to get thing going. Cheers, Spencer. On 29 Apr 2016, at 08:34, César Alegre <eaxca1@nottingham.ac.uk<mailto:eaxca1@nottingham.ac.uk>> wrote: Dear all, I have recently downloaded Nektar++ 4.3.0 and started doing the examples as shown in the user guide for the incompressible Navier-Stokes solver. I am having some problems trying to reproduce the results of the "Turbulent Channel Flow" (TurbChFl_3DH1D.xml). The simulation runs without issues, but after converting the final .fld file to .vtu for visualization in Paraview, I still see a velocity field equal to that of the initial condition (u = 1 everywhere except near the wall), instead of the expected turbulent flow. Has anyone experienced a similar outcome? Maybe I have to change something (simulation time?) in the .xml file before running the solver? Thanks, César This message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please send it back to me, and immediately delete it. Please do not use, copy or disclose the information contained in this message or in any attachment. Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. This message has been checked for viruses but the contents of an attachment may still contain software viruses which could damage your computer system, you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation. _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052