Hi Peter, thank you for the answers. I have since managed to set up PyFr and run the example cases.
I then attempted to run the NACA 0012 example posted by another user about a year ago, but it will not run due to significant version changes with PyFr since then. I should be able to make it run, eventually, but perhaps you can help with a specific question when it comes to external flow simulations. GMsh seems to be rather poorly suited for airfoil mesh generation. It can be done, but takes a very long time defeating the purpose of having a fast solver - ie. if the experiment setup takes "forever" (see ANSYS), there is a limited benefit to getting a fast solution. Thus, do you have any suggestions regarding what software or methodology can be used to create airfoil+suitable domain CGNS meshes, quickly and simply? Thanks, Victor On Tuesday, May 3, 2016 at 4:32:39 PM UTC+8, Vincent, Peter E wrote: > > Hi Victor, > > I am interested in trying PyFr for our low Re external flow problems (Re ~ > 200k and below). > > How capable is PyFr for these types of problems? I saw limited information > online, but the YouTube video of the "spoiler" looks promising. > > > This should be OK. > > What numerical output does PyFr offer? > > > Can export to .vtu or .pvtu for visualisation in Paraview. > > Specifically for 2D and 3D problems can it output Fx, Fy so that we can > calculate the aerodynamic drag? > > > Yes, see [soln-plugin-fluidforce-name] in the User Guide. > > For 3D problems do the VTK files also contain object surface pressure > data? The YouTube example only showed the fluid flow features. > > > No, not explicitly as a separate data structure, although you could > extract it. > > Cheers > > Peter > > Dr Peter Vincent MSci ARCS DIC PhD > Senior Lecturer and EPSRC Early Career Fellow > Department of Aeronautics > Imperial College London > South Kensington > London > SW7 2AZ > UK > > web: www.imperial.ac.uk/aeronautics/research/vincentlab > twitter: @Vincent_Lab <https://twitter.com/Vincent_Lab> > > > > > > On 3 May 2016, at 09:24, Victor Major <[email protected] > <javascript:>> wrote: > > I am interested in trying PyFr for our low Re external flow problems (Re ~ > 200k and below). > > How capable is PyFr for these types of problems? I saw limited information > online, but the YouTube video of the "spoiler" looks promising. > > What numerical output does PyFr offer? Specifically for 2D and 3D problems > can it output Fx, Fy so that we can calculate the aerodynamic drag? For 3D > problems do the VTK files also contain object surface pressure data? The > YouTube example only showed the fluid flow features. > > Thanks, > > Victor > > -- > 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] <javascript:>. > To post to this group, send email to [email protected] > <javascript:>. > Visit this group at https://groups.google.com/group/pyfrmailinglist. > For more options, visit https://groups.google.com/d/optout. > > > -- 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 post to this group, send an email to [email protected]. Visit this group at https://groups.google.com/group/pyfrmailinglist. For more options, visit https://groups.google.com/d/optout.
