HI Both, There should be examples of using the SteadyLinearisedNS in the directory solvers/IncNavierStokesSolver/Tests where it has been used for Re >>1 in stability analysis runs. Indeed I think there is a case at Re=7500. So possibly there is a SolverType setting that is wrong as Stan suggests. Cheers, Spencer. On 4 May 2020, at 20:29, sgepner@meil.pw.edu.pl<mailto:sgepner@meil.pw.edu.pl> wrote: Hi, There is a steady state solver you might try. It was a while since I have attempted to use it, but I think you need to set the driver to SteadyState, and not change the Eqtype. Have a look at the manual sections 11.1.4 and 11.5. My personal experience was, that it was easier for me to run the non stationary, standard solver towards a stationary solution, rather than to use the steady state one, even in the case of potentially unstable flows. Hope this helps, cheers! Stanisław Gepner 4 maj 2020 09:28 "A.P." <k210@list.ru<mailto:k210@list.ru>> napisał(a): This email from k210@list.ru<mailto:k210@list.ru> 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. Hello, I need to calculate a steady flow which may be unstable. Is the option <I PROPERTY="EQTYPE" VALUE="SteadyLinearisedNS"/> can be used only for Re<<1 or it is possble to make an appropriate AdvectionVelocity section for large Re? Alex Proskurin. _______________________________________________ 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 FREng, FRAeS Head of Aerodynamics Section, Director of Research Computing Service, Professor of Computational Fluid Mechanics, Department of Aeronautics, s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> South Kensington Campus, Phone: +44 (0)20 7594 5052 Imperial College London, Fax: +44 (0)20 7594 1974 London, SW7 2AZ, UK http://www.imperial.ac.uk/people/s.sherwin/