Hi Kamil, You have to generate the specific boundary conditions by hand but follow the instructions on the wiki under tutorial->mesh convert. cheers, Spencer. On 3 Jul 2014, at 10:14, Kamil Ozden <kamil.ozden.me@gmail.com<mailto:kamil.ozden.me@gmail.com>> wrote: Dear All, As far as I understand Gmsh only creates the geometry and the mesh. How can we define the boundary conditions, solver info's etc. to the Nektar's xml file? Do we manually write it into the .xml file or is there another way to do this? Regards, Kamil _______________________________________________ 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 Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052