view +grid/boundaryIdentifier.txt @ 664:8e6dfd22fc59 feature/poroelastic

Free BC now yields symmetric negative semidefinite discretization.
author Martin Almquist <malmquist@stanford.edu>
date Fri, 15 Dec 2017 16:23:10 -0800
parents 763d50caddf3
children
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A grid.boundaryIdentifier identifies a boundary of a grid.
For a Cartesian grid it is simply 's', 'n', 'w', 'e'.
For a multiblock grid it might be something like {1, 's'}.
For some other grid it will be up to the developer to chose
a good way to identify boundaries.