Question #153567 on DOLFIN changed: https://answers.launchpad.net/dolfin/+question/153567
B. Emek Abali posted a new comment: You solve variables of: pressure AND velocities so You need to define Dirichlet or Neumann for both of them. If You won't define anything then You are automatically defining Neumann=0 for that variable, in your case try to define at least zero in top-bottom direction for velocities or use long enough channel. If You see sth like a chess board, try to go with time, perturbing the system slowly, an example You may find in my Website under Computational Reality http://www.lkm.tu-berlin.de/menue/mitarbeiter_sprechstunden/b_emek_abali_msc/ -- You received this question notification because you are a member of DOLFIN Team, which is an answer contact for DOLFIN. _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : [email protected] Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
