Closed jeff-cohere closed 3 years ago
I think this is a good idea and the naming switches seem ok to me. In addition it clears up some ambiguity. In the weak form of the mixed FE formulation the Dirichlet conditions set are velocity conditions and the Neumann are pressures, the reverse of what is typical. That is, a boundary integral term emerges from integration by parts with pressure leading to a natural means to enforce conditions, but the velocity conditions must be built into the space.
Boundary conditions are tricky enough! It's important for us to be precise about our language. C and Fortran interfaces have been updated, and all the demos use the new functions.
FYI @ghammond86 @nocollier