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Diffstat (limited to 'README')
| -rw-r--r-- | README | 23 |
1 files changed, 6 insertions, 17 deletions
@@ -9,9 +9,13 @@ This thorn provides some standard outer boundary conditions. Currently: + - scalar boundary conditions + - flat boundary conditions (a copy of the point just inside the boundary) + - copy boundary conditions + - radiation boundary conditions 2. Additional information @@ -20,22 +24,7 @@ This thorn only currently works with a 3D Cartesian Grid The boundary conditions can be called from Fortran or C, and can be passed either groups of grid functions, or single grid variables. -The flat boundary conditions work with any size stencil width, -the radiation boundary conditions only currently work with +All the boundary conditions work with an arbitrarily size stencil width, +except for the radiation boundary conditions which only currently work with a stencil width of one. -To apply a flat boundary condition from Fortran - - call ApplyFlatBC(cctkGH,sw,"imp::group_or_var") - -to apply a radiative boundary condition from Fortran - - call ApplyRadiativeBC(cctkGH,num,sw,"imp::group_or_var","imp::group_or_var2") - -Where: - stencil width is a dimension 3 integer array containing the stencil - width in each direction - num is a coefficient in the implemented radiative boundary condition - that is usually one. - -See the documentation for more details. |