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Diffstat (limited to 'src/blended_boundary.F')
| -rw-r--r-- | src/blended_boundary.F | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/src/blended_boundary.F b/src/blended_boundary.F new file mode 100644 index 0000000..c46623c --- /dev/null +++ b/src/blended_boundary.F @@ -0,0 +1,225 @@ +C $Header$ + +#include "cctk.h" +#include "cctk_Parameters.h" +#include "cctk_Arguments.h" +#include "cctk_Functions.h" + + subroutine Exact__blended_boundary(CCTK_ARGUMENTS) + + implicit none + + DECLARE_CCTK_ARGUMENTS + DECLARE_CCTK_PARAMETERS + DECLARE_CCTK_FUNCTIONS + + logical doKij, doGij, doLapse, doShift + + integer i,j,k + integer nx,ny,nz + + CCTK_REAL router, rinner, frac, onemfrac + CCTK_REAL gxxe, gyye, gzze, gxye, gyze, gxze + CCTK_REAL kxxe, kyye, kzze, kxye, kyze, kxze + CCTK_REAL dxgxxe, dxgyye, dxgzze, dxgxye, dxgyze, dxgxze + CCTK_REAL dygxxe, dygyye, dygzze, dygxye, dygyze, dygxze + CCTK_REAL dzgxxe, dzgyye, dzgzze, dzgxye, dzgyze, dzgxze + + CCTK_REAL + $ exact_psi, + $ exact_psix, exact_psiy, exact_psiz, + $ exact_psixx, exact_psiyy, exact_psizz, + $ exact_psixy, exact_psiyz, exact_psixz + + CCTK_REAL alpe, dtalpe, axe, aye, aze + CCTK_REAL betaxe,betaye,betaze, dtbetaxe,dtbetaye,dtbetaze + CCTK_REAL bxxe,bxye,bxze,byxe,byye,byze,bzxe,bzye,bzze + + CCTK_REAL det, uxx, uxy, uxz, uyy, uyz, uzz + + CCTK_REAL dx,dy,dz,time + CCTK_REAL xmx,xmn,ymx,ymn,zmx,zmn,rmx + integer ierr + +C Grid parameters. + + nx = cctk_lsh(1) + ny = cctk_lsh(2) + nz = cctk_lsh(3) + + dx = cctk_delta_space(1) + dy = cctk_delta_space(2) + dz = cctk_delta_space(3) + + time = cctk_time + +C Other parameters. + + doKij = (exblend_Ks.eq.1) + doGij = (exblend_gs.eq.1) + + doLapse = ((exblend_gauge.eq.1).and. + $ (CCTK_Equals(lapse_evolution_method,"exact").ne.0)) + doShift = ((exblend_gauge.eq.1).and. + $ (CCTK_Equals(shift_evolution_method,"exact").ne.0)) + + call CCTK_CoordRange(ierr,cctkGH,xmn,xmx,-1,"x","cart3d") + call CCTK_CoordRange(ierr,cctkGH,ymn,ymx,-1,"y","cart3d") + call CCTK_CoordRange(ierr,cctkGH,zmn,zmx,-1,"z","cart3d") + + rmx = min(xmx,ymx,zmx) + + if (exblend_rout.lt.0) then + router = rmx - 2.0d0*dx + else + router = exblend_rout + endif + + if (exblend_width.lt.0) then + rinner = router + exblend_width*dx + else + rinner = router - exblend_width + endif + + do k=1,nz + do j=1,ny + do i=1,nx + +c We only do anything if r >= rinner so only evaluate exact data +c there. + + if (r(i,j,k) .ge. rinner) then + +C Initialize the psi of exact +C (also to tell the models about the conformal_state) + if (conformal_state .ne. 0) then + exact_psi = 1.0D0 + else + exact_psi = 0.0D0 + end if + exact_psix = 0.0D0 + exact_psiy = 0.0D0 + exact_psiz = 0.0D0 + exact_psixx = 0.0D0 + exact_psiyy = 0.0D0 + exact_psizz = 0.0D0 + exact_psixy = 0.0D0 + exact_psiyz = 0.0D0 + exact_psixz = 0.0D0 + + call Exact__Bona_Masso_data( + $ decoded_exact_model, + $ x(i,j,k), y(i,j,k), z(i,j,k), time, + $ gxxe, gyye, gzze, gxye, gyze, gxze, + $ kxxe, kyye, kzze, kxye, kyze, kxze, + $ exact_psi, + $ exact_psix, exact_psiy, exact_psiz, + $ exact_psixx, exact_psiyy, exact_psizz, + $ exact_psixy, exact_psiyz, exact_psixz, + $ dxgxxe, dxgyye, dxgzze, dxgxye, dxgyze, dxgxze, + $ dygxxe, dygyye, dygzze, dygxye, dygyze, dygxze, + $ dzgxxe, dzgyye, dzgzze, dzgxye, dzgyze, dzgxze, + $ alpe, dtalpe, axe, aye, aze, + $ betaxe, betaye, betaze, dtbetaxe, dtbetaye, dtbetaze, + $ bxxe, bxye, bxze, byxe, + $ byye, byze, bzxe, bzye, bzze) + +c This sucks, but we want the exact vs so we can blend them also. + + det = -(gxze**2*gyye) + & + 2.d0*gxye*gxze*gyze + & - gxxe*gyze**2 + & - gxye**2*gzze + & + gxxe*gyye*gzze + + uxx=(-gyze**2 + gyye*gzze)/det + uxy=(gxze*gyze - gxye*gzze)/det + uyy=(-gxze**2 + gxxe*gzze)/det + uxz=(-gxze*gyye + gxye*gyze)/det + uyz=(gxye*gxze - gxxe*gyze)/det + uzz=(-gxye**2 + gxxe*gyye)/det + +c Outside of router we want to place exact data on our grid + + if (r(i,j,k) .gt. router) then + +c This is one of those things I will invariably screw up if I type +c it in so let the computer do it + +#define exassign(q) q(i,j,k) = q e +#define exassign_grp(p) \ + exassign(p xx) &&\ + exassign(p xy) &&\ + exassign(p xz) &&\ + exassign(p yy) &&\ + exassign(p yz) &&\ + exassign(p zz) + +c Note this plays on the nasty trick that fortran doesnt give a +c damn about spaces so gxx e is the same as gxxe for the parser... +c Grody but effective! + + if (doGij) then + exassign_grp(g) + endif + if (doKij) then + exassign_grp(k) + endif + + if (doLapse) then + exassign(alp) + endif + + if (doShift.and.(shift_state.ne.0)) then + exassign(betax) + exassign(betay) + exassign(betaz) + endif + +c OK so we dont want to blend so use a goto to jump. + else + +c Evaluate the linear weighting fraction. Obvious... + + frac = (r(i,j,k) - rinner) / (router - rinner) + onemfrac = 1.0D0 - frac + +c Once again some c-preprocessor tricks based on the whole fortran +c space thing... + +#define INTPOINT(f,v) f(i,j,k) = frac * v + onemfrac * f(i,j,k) +#define intone(f) INTPOINT(f, f e) +#define int_grp(p) \ + intone(p xx) &&\ + intone(p xy) &&\ + intone(p xz) &&\ + intone(p yy) &&\ + intone(p yz) &&\ + intone(p zz) + + if (doGij) then + int_grp(g) + endif + if (doKij) then + int_grp(k) + endif + + if (doLapse) then + intone(alp) + endif + + if (doShift.and.(shift_state.ne.0)) then + intone(betax) + intone(betay) + intone(betaz) + endif + + endif ! r > router else + endif ! r > rinner + + enddo + enddo + enddo + + return + end |