view +grid/boundaryIdentifier.txt @ 1156:8c0e2b50f018 feature/rv

Attempt to fix oscilations when not using bdfs by adding lower-order 2nd derivative correction term to the Residual
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Tue, 25 Jun 2019 13:06:42 +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.