> One other interesting thing that I just noticed is that if I make my > initial solution bigger: originally it was uniformly 1e-5 and now I > made it to 1e-0, the nonlinear iteration and time-stepping with CN > proceeds correctly. So now I'm wondering whether nondimensionalization > in some form could be the answer but with a diffusion coefficient as > T^4, not sure if this will help much either.
You might also simply try increasing the tolerance on your linear solver - looks like it is TOLERANCE, which by default is 1.e-6. ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
