hello,
I possibly want to implement a free surface problem with my dolfin code
using the dolfin ALE functionality. dolfin can do the automatic updating
of the mesh nodes or else shift the nodes by a user-supplied
displacement function.
in the automatic updating, the vertex-displacements are
'method-supplied' and not accessible, but i need to have them in some
displacement function in order to compute correct convective velocities
at all theeuler/ale/lagrange dofs.
i can get the displacements at the mesh vertices from comparing old (not
yet moved) and new (moved) mesh, but what's a good way to generate a
displacement function in a desired functionspace out of those vertex-values?
best regards,
patrick
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