[Libmesh-users] How to fix values of individual dofs

[Prashant K. J. <pra...@gm...>]

Hi All,

I can create a network mesh consisting of edge elements in 3D space. This
is non-standard mesh in the sense that I start with empty mesh, add couple
of nodes, add edge element between nodes. Each node has 1 pressure dof. On
this network, I am now trying to solve 1D pde for pressure. For boundary
conditions, I want to fix the two ends of the network (i.e. the first dof
and the last dof) to a specific value.

DirichletBoundary with boundary id 0 and 1 result in error possibly due to
mesh in 3D where as elements are of 1D nature.

To get around this, I was wondering if I could fix the individual dof to a
specific value. Any suggestions to make above work is appreciated.

Regards,
Prashant