diff options
| author | diener <diener@f69c4107-0314-4c4f-9ad4-17e986b73f4a> | 2005-12-06 17:20:11 +0000 |
|---|---|---|
| committer | diener <diener@f69c4107-0314-4c4f-9ad4-17e986b73f4a> | 2005-12-06 17:20:11 +0000 |
| commit | 74de5846f7ddeb3bf181b3205f6539b4f0081705 (patch) | |
| tree | 70bbe4f8269d32fadb6526eb58f810837d64a018 /src/Dissipation_8_4.F90 | |
| parent | 2f50e2f41868514ac23f5948caa4210607cf8917 (diff) | |
Added a new boolean parameter "scale_with_h" that allows the user to
choose to scale the dissipation with the grid spacing h. This results
formally in the loss of one order of convergence. The default value is "no".
git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@52 f69c4107-0314-4c4f-9ad4-17e986b73f4a
Diffstat (limited to 'src/Dissipation_8_4.F90')
| -rw-r--r-- | src/Dissipation_8_4.F90 | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/src/Dissipation_8_4.F90 b/src/Dissipation_8_4.F90 index bc225af..ec98407 100644 --- a/src/Dissipation_8_4.F90 +++ b/src/Dissipation_8_4.F90 @@ -1,18 +1,21 @@ ! $Header$ #include "cctk.h" +#include "cctk_Parameters.h" -subroutine dissipation_8_4 (var, ni, nj, nk, bb, gsize, delta, epsdis, rhs) +subroutine dissipation_8_4 (var, ni, nj, nk, bb, gsize, delta, epsilon, rhs) implicit none + DECLARE_CCTK_PARAMETERS + integer :: ni, nj, nk CCTK_REAL, dimension(ni,nj,nk), intent(in) :: var CCTK_REAL, dimension(ni,nj,nk), intent(inout) :: rhs CCTK_INT, dimension(6), intent(in) :: bb CCTK_INT, dimension(3), intent(in) :: gsize CCTK_REAL, dimension(3), intent(in) :: delta - CCTK_REAL, intent(in) :: epsdis + CCTK_REAL, intent(in) :: epsilon CCTK_REAL :: zero = 0.0 integer, parameter :: wp = kind(zero) @@ -23,7 +26,11 @@ subroutine dissipation_8_4 (var, ni, nj, nk, bb, gsize, delta, epsdis, rhs) call set_coeff ( a ) - idel = epsdis / 256 + if ( scale_with_h > 0 ) then + idel = epsilon / ( 256 * delta(1) ) + else + idel = epsilon / 256 + end if if ( bb(1) == 0 ) then il = 1 + gsize(1) @@ -134,7 +141,11 @@ subroutine dissipation_8_4 (var, ni, nj, nk, bb, gsize, delta, epsdis, rhs) call set_coeff ( a ) - idel = epsdis / 256 + if ( scale_with_h > 0 ) then + idel = epsilon / ( 256 * delta(2) ) + else + idel = epsilon / 256 + end if if ( bb(3) == 0 ) then jl = 1 + gsize(2) @@ -245,7 +256,11 @@ subroutine dissipation_8_4 (var, ni, nj, nk, bb, gsize, delta, epsdis, rhs) call set_coeff ( a ) - idel = epsdis / 256 + if ( scale_with_h > 0 ) then + idel = epsilon / ( 256 * delta(3) ) + else + idel = epsilon / 256 + end if if ( bb(5) == 0 ) then kl = 1 + gsize(3) |