Jaekwang, in step-9 the test function is a little bit strange because if you use continuous finite element to discretize the advection equation, the scheme is unstable. So you basically add a diffusion term to the equation to stabilize the scheme. However, your equation already has a diffusion term so you may not need a stabilization term.
Best, Bruno On Wednesday, June 14, 2017 at 3:33:18 PM UTC-4, Jaekwang Kim wrote: > > > <https://lh3.googleusercontent.com/-qsDNe2Fge5w/WUGPdbVCfRI/AAAAAAAABCI/egHPb83UKLIjnTGxmMfHiI4ZKGgXq4FhgCLcBGAs/s1600/Screen%2BShot%2B2017-06-14%2Bat%2B2.32.45%2BPM.png> > > > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
