Mercurial > repos > public > sbplib
diff +scheme/bcSetupStaggered.m @ 1280:c7f5b480e455 feature/poroelastic
Add bcSetup for staggered, where displacement and traction data must be evaluated on different grids.
author | Martin Almquist <malmquist@stanford.edu> |
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date | Sun, 07 Jun 2020 11:32:19 -0700 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/+scheme/bcSetupStaggered.m Sun Jun 07 11:32:19 2020 -0700 @@ -0,0 +1,20 @@ +% Takes a diffOp and a cell array of boundary condition definitions. +% Each bc is a struct with the fields +% * type -- Type of boundary condition +% * boundary -- Boundary identifier +% * data -- A function_handle for a function which provides boundary data.(see below) +% Also takes S_sign which modifies the sign of the penalty function, [-1,1] +% Returns a closure matrix and a forcing function S. +% +% The boundary data function can either be a function of time or a function of time and space coordinates. +% In the case where it only depends on time it should return the data as grid function for the boundary. +% In the case where it also takes space coordinates the number of space coordinates should match the number of dimensions of the problem domain. +% For example in the 2D case: f(t,x,y). +function [closure, S] = bcSetupStaggered(diffOp, bcs, S_sign) + default_arg('S_sign', 1); + assertType(bcs, 'cell'); + assert(S_sign == 1 || S_sign == -1, 'S_sign must be either 1 or -1'); + + [closure, penalties] = scheme.bc.closureSetup(diffOp, bcs); + S = scheme.bc.forcingSetupStaggered(diffOp, penalties, bcs, S_sign); +end