On 08/30/2018 04:35 AM, Jane Lee wrote:
I believe the Neumann conditions are strongly imposed.
And yes - I realised that inhomogeneous Neumann bc is ambiguous phrasing.
I mean that I have a conditions k grad p.n =g, or u.n = g equivalently,
I think this is in point 3 in my notes in my original post but i think
it was unclear what u was. I want to impose a nonzero condition on the
normal derivative of the pressure.
Jane: Konrad already gave the correct answer. There is also the function
VectorTools::project_boundary_values_div_conforming:
https://www.dealii.org/9.0.0/doxygen/deal.II/group__constraints.html#ga86427a4e8b3a7e580dabb4e473005288
Best
W.
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