view +grid/boundaryIdentifier.txt @ 1141:91058813b6e7 feature/laplace_curvilinear_test

Multiply by 2 in VirtaMin so that scheme is actually provably stable.
author Martin Almquist <malmquist@stanford.edu>
date Fri, 21 Jun 2019 17:28:33 +0200
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.