Hi Victor, On 04/05/2016 19:04, Victor Major wrote: > 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?
"I hate meshes. I cannot believe how hard this is. Geometry is hard." — David Baraff, Senior Research Scientist, Pixar Animation Studios and if regular meshing is hard then generating curved meshes is at least an order of magnitude more difficult on top of that. In terms of format support it should not be too difficult to get grids into PyFR. The Gmsh format is reasonably well supported and Gmsh itself can import a wide range of mesh file formats (hence permitting them to be converted to .msh). Furthermore, Pointwise has native support for writing out grids in our native .pyfrm format and are working towards high-order grid generation. Hence, if you want to generate a grid and get it into PyFR Pointwise is almost certainly your best bet at the moment. Gmsh is improving...slowly. But it appears as if they are more focused towards heat transfer type problems rather than CFD type problems (where you need a boundary layer). As such Gmsh is extremely clunky and for every two steps forwards they seem to move one step backwards. Regards, Freddie. -- 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.
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