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c $Header$
#include "cctk.h"
#include "cctk_Arguments.h"
#include "cctk_Functions.h"
#include "cctk_Parameters.h"
subroutine IDLinearWaves_SinePlaneWaves (CCTK_ARGUMENTS)
implicit none
DECLARE_CCTK_ARGUMENTS
DECLARE_CCTK_FUNCTIONS
DECLARE_CCTK_PARAMETERS
CCTK_REAL pi
CCTK_REAL the,phi
CCTK_REAL st,ct,sp,cp
CCTK_REAL kx,ky,kz,w
CCTK_REAL b,bt
INTEGER i,j,k
CHARACTER*200 infoline
pi = 3.14159265358979d0
c determine the direction for the plane wave to travel
c and convert it from degrees to radians
the = pi*wavetheta/180
phi = pi*wavephi/180
c precalc
st = sin(the)
ct = cos(the)
sp = sin(phi)
cp = cos(phi)
kx = 2*pi*st*cp/wavelength
ky = 2*pi*st*sp/wavelength
kz = 2*pi*ct/wavelength
w = sqrt(kx*kx+ky*ky+kz*kz)
c too lazy
if (wavetheta .ne. 90) then
call CCTK_WARN (0, "wavetheta.ne.90 is not implemented")
end if
c *************** plane waves ********************
do k=1,cctk_lsh(3)
do j=1,cctk_lsh(2)
do i=1,cctk_lsh(1)
b = amplitude * sin(kx*x(i,j,k)+ky*y(i,j,k)+kz*z(i,j,k)-w*cctk_time)
bt = - amplitude * w * cos(kx*x(i,j,k)+ky*y(i,j,k)+kz*z(i,j,k)-w*cctk_time)
c the metric functions
gxx(i,j,k) = sp*sp * (1+b) + cp*cp * (1)
gxy(i,j,k) = cp*sp * (1-(1+b))
gyy(i,j,k) = cp*cp * (1+b) + sp*sp * (1)
gxz(i,j,k) = 0
gyz(i,j,k) = 0
gzz(i,j,k) = 1-b
c and the extrinsic curvature
kxx(i,j,k) = sp*sp * (bt/2) + cp*cp * (0)
kxy(i,j,k) = cp*sp * (-bt/2)
kyy(i,j,k) = cp*cp * (bt/2) + sp*sp * (0)
kxz(i,j,k) = 0
kyz(i,j,k) = 0
kzz(i,j,k) = -bt/2
enddo
enddo
enddo
c initialize the conformal factor
if (CCTK_EQUALS(metric_type, "static conformal")) then
conformal_state = 1
if (CCTK_EQUALS(conformal_storage, "factor+derivs")) then
conformal_state = 2
else if (CCTK_EQUALS(conformal_storage, "factor+derivs+2nd derivs")) then
conformal_state = 3
end if
do k=1,cctk_lsh(3)
do j=1,cctk_lsh(2)
do i=1,cctk_lsh(1)
psi(i,j,k) = 1d0
if(conformal_state .gt. 1) then
psix(i,j,k) = 0d0
psiy(i,j,k) = 0d0
psiz(i,j,k) = 0d0
endif
if(conformal_state .gt. 2) then
psixy(i,j,k) = 0d0
psixz(i,j,k) = 0d0
psiyz(i,j,k) = 0d0
psixx(i,j,k) = 0d0
psiyy(i,j,k) = 0d0
psizz(i,j,k) = 0d0
endif
end do
end do
end do
end if
end
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