I am solving for a plane wave. laplacian (u) +k^2 u =0 domain (0,1) * (0,1) ; k =20 for this case
BC: u(0,y) =1, u (1,y) = cos kx, du/dy =0 for the other 2 boundaries currently using the solver and preconditioner of tutorial 7: CG solver and SSOR preconditioner Edith > On Oct 10, 2016, at 12:38 PM, Wolfgang Bangerth <[email protected]> > wrote: > > On 10/10/2016 10:05 AM, Edith Sotelo wrote: >> You are right. My system has a non zero RHS after imposing the Dirichlet BC. >> That was my bad. >> >> CG still works, just slow though. > > So what is the equation and the preconditioner you use? > Best > W. > > -- > ------------------------------------------------------------------------ > Wolfgang Bangerth email: [email protected] > www: http://www.math.colostate.edu/~bangerth/ > > -- > 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 a topic in the > Google Groups "deal.II User Group" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/dealii/F6_iqj1mJnA/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
