1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
#include "cctk.h"
#include "cctk_Arguments.h"
#include "cctk_Functions.h"
#include "cctk_Parameters.h"
subroutine IDScalarWaveMoL_InitialData (CCTK_ARGUMENTS)
implicit none
DECLARE_CCTK_ARGUMENTS
DECLARE_CCTK_FUNCTIONS
DECLARE_CCTK_PARAMETERS
CCTK_REAL pi
parameter (pi = 3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117068d0)
CCTK_REAL omega
CCTK_REAL tmp
integer i, j, k
if (CCTK_EQUALS(initial_data, "plane wave")) then
omega = sqrt(wave_number(1)**2 + wave_number(2)**2
$ + wave_number(3)**2)
do k=1,cctk_lsh(3)
do j=1,cctk_lsh(2)
do i=1,cctk_lsh(1)
tmp = wave_number(1)*(x(i,j,k)-phase_offset(1))
$ + wave_number(2)*(y(i,j,k)-phase_offset(2))
$ + wave_number(3)*(z(i,j,k)-phase_offset(3))
$ + omega*(cctk_time-time_offset)
phi(i,j,k) = amplitude * cos (2*pi * tmp)
psi(i,j,k) = - amplitude * 2*pi * omega * sin (2*pi * tmp)
end do
end do
end do
else if (CCTK_EQUALS(initial_data, "Gaussian pulse")) then
omega = sqrt(pulse_direction(1)**2 + pulse_direction(2)**2
$ + pulse_direction(3)**2)
do k=1,cctk_lsh(3)
do j=1,cctk_lsh(2)
do i=1,cctk_lsh(1)
tmp = pulse_direction(1)*(x(i,j,k)-pulse_offset(1))
$ + pulse_direction(2)*(y(i,j,k)-pulse_offset(2))
$ + pulse_direction(3)*(z(i,j,k)-pulse_offset(3))
$ + omega*(cctk_time-time_offset)
phi(i,j,k) = amplitude * exp (-0.5d0 * tmp**2)
psi(i,j,k) = - tmp * omega * phi(i,j,k)
end do
end do
end do
end if
end
|
