On Wed, Dec 8, 2010 at 10:13 AM, robert <robert.bod...@unil.ch> wrote: > after the solve, the initial data are all set to one. I only played with > the boundary conditions.
So you are solving ex9 (convection-diffusion) with discontinuous data near the boundaries, and you are surprised there are oscillations? AFAIK even pure diffusion can display "ringing" when using Crank-Nicolson and discontinuous data... -- John ------------------------------------------------------------------------------ This SF Dev2Dev email is sponsored by: WikiLeaks The End of the Free Internet http://p.sf.net/sfu/therealnews-com _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
