[Nek5000-users] Full restart with a different time step

[nek5000-users at lists.mcs.anl.gov]

Dear Neks,


I use full_restart option for my current simulations. One simulation crashed after restarting for some time with the Courant number going crazy. I suppose I will need to reduce the time step size.


Basically, I want to continue my simulation using full_restart option but with a smaller time step size. Somehow I remember I saw one post saying one shouldn't change the time step size when using the full_restart option. I'm just thinking of a way to work around the problem.


So does anyone have ideas on how I can interpolate the flow fields between two time steps or any other ways to fully restart a simulation with a different time step size?


Thank you very much in advance for any suggestions or comments.


Best regards,

Tony
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