Having a coupled set of poisson-like equations
\partial_t a = \nabla^2 a
\partial_t b = \nabla^2 b + \nabla^2 a
I can write the weak form(s) as (while ignoring boundary conditions)
\partial_t a = (\nabla v_1, \nabla a)
\partial_t b = (\nabla v_2, \nabla b) + (\nabla v_2, \nabla a)
Now in deal.II I
Hello all. I am very new to the community but very eager to learn. I am
wonder if there is an out-of-the-box support for using Lagrange multipliers
on a boundary, to enforce rigid body motion in Stokes flow, similar to the
work of Glowinski [1] or Hwang [2]?
[1] Glowinski, R., Pan, T. W., Hesla
