An alternative choice is applying the boundary conditions weakly(during
assemble). Will weakly implemented boundary condition behaves worse than
explicitly through AffineConstraint class, when it's not Dirichlet BC?
在2022年12月21日星期三 UTC+8 09:44:42 写道：
> Hi guys, I have a question on setting the
Hi guys, I have a question on setting the boundary constraints for
mg_constrained_dofs object.
In many problems where the only boundary conditions(for AffineConstraints)
are Dirichlet BC and hanging nodes, mg_constrained knows them by
MGConstrainedDoFs::make_zero_boundary_constraints(the
Hi Wayne,
you can attache your own constraints as shown here:
https://github.com/dealii/dealii/blob/2376c62a4b89953b74801852983eb8556930d54d/tests/numerics/no_flux_18.cc#L1136-L1146
Hope this helps!
Peter
On Wednesday, 21 December 2022 at 02:44:42 UTC+1 yy.wayne wrote:
> Hi guys, I have a
Wow that's wonderful.
Thank you Peter. You save me all the time.
在2022年12月21日星期三 UTC+8 15:37:12 写道：
> Hi Wayne,
>
> you can attache your own constraints as shown here:
> https://github.com/dealii/dealii/blob/2376c62a4b89953b74801852983eb8556930d54d/tests/numerics/no_flux_18.cc#L1136-L1146
>
>
