Hi, it's a bit hard to guess what's going wrong, however, have you tried reducing the dt? Another thing, if the diameter of your cylinder is 1, then your Reynolds number is 67665, which is not small, and you should expect a turbulent wake at least. Is this the intended case?
Best Giorgio On Thursday, September 10, 2020 at 9:08:57 AM UTC+2 Chandra Shekhar Pant wrote: > Hi all, > I am facing a very weird problem in PyFR. I am trying to run a simple > cylinder case similar to that of PyFR tutorial, meshing it using the GMsh. > When I am running the case with nodes 8726 the simulations run perfectly > and I am able to get the results (not sure if accurate or not). But if I > refine the mesh say about 21610 nodes, the simulations are not running at > all and giving an error which says "minimum sized time step rejected". From > the previous posts in this group I even tried with the option of -- > anti-alias = flux, surf-flux ; but this too haven't helped. I even tried to > decrease the order from 3 to 1 but again haven't worked for me. I have > attached my ini file herewith. Any suggestion/comment will be a great help. > Thanks in advance! > -- You received this message because you are subscribed to the Google Groups "PyFR Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/pyfrmailinglist/c7d3334a-cdc7-48ba-aace-0544837c2ec1n%40googlegroups.com.
