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grid_timedifs.f90
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subroutine grid_timedifs(nx,ny,gamma,dx,dy,&
rho,rho_left_x,rho_right_x,rho_left_y,rho_right_y,&
tau,tau_left_x,tau_right_x,tau_left_y,tau_right_y,&
etot,etot_left_x,etot_right_x,etot_left_y,etot_right_y,&
mom_A,mom_A_left_x,mom_A_right_x,mom_A_left_y,mom_A_right_y,&
mom_B,mom_B_left_x,mom_B_right_x,mom_B_left_y,mom_B_right_y,&
mom_x,mom_x_left_x,mom_x_right_x,mom_x_left_y,mom_x_right_y,&
mom_y,mom_y_left_x,mom_y_right_x,mom_y_left_y,mom_y_right_y,&
x,x_left_x,x_right_x,x_left_y,x_right_y,&
y,y_left_x,y_right_x,y_left_y,y_right_y,&
phi,phi_left_x,phi_right_x,phi_left_y,phi_right_y,&
rho_Fx,tau_Fx,etot_Fx,mom_A_Fx,mom_B_Fx,mom_x_Fx,mom_y_Fx,&
rho_Fy,tau_Fy,etot_Fy,mom_A_Fy,mom_B_Fy,mom_x_Fy,mom_y_Fy,&
delta_rho,delta_tau,delta_etot,delta_mom_A,delta_mom_B,delta_mom_x,delta_mom_y,omega_grid)
implicit none
include 'variables.h'
include 'grid.h'
double precision :: v_x(nx,ny),v_y(nx,ny)
double precision :: pressure_left(nx,ny),pressure_right(nx,ny)
double precision :: delta_mom_X1(nx,ny),delta_mom_Y1(nx,ny)
double precision :: omega_grid
double precision :: temp1(nx,ny),temp2(nx,ny),temp3(nx,ny),temp4(nx,ny)
delta_rho = 0d0
delta_tau = 0d0
delta_etot = 0d0
delta_mom_A = 0d0
delta_mom_B = 0d0
delta_mom_X = 0d0
delta_mom_Y = 0d0
delta_mom_X1 = 0d0
delta_mom_Y1 = 0d0
!Advection
! 2/22/2011 2:30pm changed 'ny-1' to 'ny' and for x
! for all the loops in here. should be 'j=3,ny-2' perhaps?
!$OMP PARALLEL DO PRIVATE(i,j)
do j=2,ny-1
do i=2,nx-1
!xdir
delta_rho(i,j) = delta_rho(i,j)-(rho_Fx(i+1,j)-rho_Fx(i,j))/dx
delta_tau(i,j) = delta_tau(i,j)-(tau_Fx(i+1,j)-tau_Fx(i,j))/dx
delta_etot(i,j) = delta_etot(i,j)-(etot_Fx(i+1,j)-etot_Fx(i,j))/dx
delta_mom_A(i,j) = delta_mom_A(i,j)-(mom_A_Fx(i+1,j)-mom_A_Fx(i,j))/dx
delta_mom_B(i,j) = delta_mom_B(i,j)-(mom_B_Fx(i+1,j)-mom_B_Fx(i,j))/dx
delta_mom_x(i,j) = delta_mom_x(i,j)-(mom_x_Fx(i+1,j)-mom_x_Fx(i,j))/dx
delta_mom_y(i,j) = delta_mom_y(i,j)-(mom_y_Fx(i+1,j)-mom_y_Fx(i,j))/dx
!ydir
delta_rho(i,j) = delta_rho(i,j)-(rho_Fy(i,j+1)-rho_Fy(i,j))/dy
delta_tau(i,j) = delta_tau(i,j)-(tau_Fy(i,j+1)-tau_Fy(i,j))/dy
delta_etot(i,j) = delta_etot(i,j)-(etot_Fy(i,j+1)-etot_Fy(i,j))/dy
delta_mom_A(i,j) = delta_mom_A(i,j)-(mom_A_Fy(i,j+1)-mom_A_Fy(i,j))/dy
delta_mom_B(i,j) = delta_mom_B(i,j)-(mom_B_Fy(i,j+1)-mom_B_Fy(i,j))/dy
delta_mom_x(i,j) = delta_mom_x(i,j)-(mom_x_Fy(i,j+1)-mom_x_Fy(i,j))/dy
delta_mom_y(i,j) = delta_mom_y(i,j)-(mom_y_Fy(i,j+1)-mom_y_Fy(i,j))/dy
end do
end do
!$OMP END PARALLEL DO
call velocity(nx,ny,mom_x,mom_y,rho,v_x,v_y,omega_grid,x,y)
!! !$OMP PARALLEL DO PRIVATE(i,j)
! do j=1,ny
! do i=1,nx
! mom_x(i,j) = rho(i,j)*v_x(i,j)
! mom_y(i,j) = rho(i,j)*v_y(i,j)
! end do
! end do
!! !$OMP END PARALLEL DO
! pressure on the left will be at x_right_x(i,j)
! pressure on the right will be at x_left_x(i+1,j)
call get_pressure(nx,ny,rho_right_x,&
mom_x_right_x,mom_y_right_x,etot_right_x,gamma,tau_right_x,pressure_right)
call get_pressure(nx,ny,rho_left_x,&
mom_x_left_x,mom_y_left_x,etot_left_x,gamma,tau_left_x,pressure_left)
!setting pressure to zero at boundaries
!left/right
do j=3,ny-2
!left
i=3
pressure_left(i,j) = 0d0
pressure_right(i,j) = 0d0
!right
i=nx-1
pressure_left(i,j) = 0d0
pressure_right(i,j) = 0d0
end do
!$OMP PARALLEL DO PRIVATE(i,j)
do j=2,ny-1
do i=2,nx-1
!source
delta_mom_X1(i,j) = delta_mom_X1(i,j) + (0.5d0/dx)*( pressure_left(i,j)+pressure_right(i,j)-pressure_right(i+1,j)-pressure_left(i+1,j) )
delta_mom_X1(i,j) = delta_mom_X1(i,j) - (0.5d0/dx)*(rho(i,j)*( phi(i+1,j) - phi(i-1,j)))
!+(0.5d0/dx)*(&
! ( pressure_left(i,j)+pressure_right(i,j)-pressure_right(i+1,j)-pressure_left(i+1,j) )&
! -rho(i,j)*( phi(i+1,j) - phi(i-1,j) ) &
! )
!!$ if ( (i .eq. 60) .and. (j .eq. 60) ) then
!!$ print*,' '
!!$ print*, (0.5d0/dx)*( pressure_left(i,j)+pressure_right(i,j)-pressure_right(i+1,j)-pressure_left(i+1,j) )
!!$ print*, (0.5d0/dx)*(rho(i,j)*( phi(i+1,j) - phi(i-1,j)))
!!$ print*, delta_mom_X(i,j)
!!$ end if
delta_etot(i,j) = delta_etot(i,j) - (mom_x(i,j)/dx)*&
0.5d0*(phi(i+1,j)-phi(i-1,j))
end do
end do
!$OMP END PARALLEL DO
! pressure on the left will be at x_right_x(i,j)
! pressure on the right will be at x_left_x(i+1,j)
call get_pressure(nx,ny,rho_right_y,&
mom_x_right_y,mom_y_right_y,etot_right_y,gamma,tau_right_y,pressure_right)
call get_pressure(nx,ny,rho_left_y,&
mom_x_left_y,mom_y_left_y,etot_left_y,gamma,tau_left_y,pressure_left)
!setting pressure to zero at boundaries
do i=3,nx-2
!bottom
j=3
pressure_left(i,j) = 0d0
pressure_right(i,j) = 0d0
!top
j=ny-1
pressure_left(i,j) = 0d0
pressure_right(i,j) = 0d0
end do
!$OMP PARALLEL DO PRIVATE(i,j)
do j=2,ny-1
do i=2,nx-1
!source
delta_mom_Y1(i,j) = delta_mom_Y1(i,j) + (0.5d0/dy)*( pressure_left(i,j)+pressure_right(i,j)-pressure_right(i,j+1)-pressure_left(i,j+1) )
delta_mom_Y1(i,j) = delta_mom_Y1(i,j) - (0.5d0/dy)*(rho(i,j)*( phi(i,j+1) - phi(i,j-1)))
! delta_mom_Y(i,j) = delta_mom_Y(i,j)+(0.5d0/dy)*(&
! ( pressure_left(i,j)+pressure_right(i,j)-pressure_right(i,j+1)-pressure_left(i,j+1) ) -&
! rho(i,j)*(phi(i,j+1) - phi(i,j-1)) &
! )
delta_etot(i,j) = delta_etot(i,j) - (mom_y(i,j)/dy)*&
0.5d0*(phi(i,j+1)-phi(i,j-1))
end do
end do
!$OMP END PARALLEL DO
call getrtheta(nx,ny,x,y,r,theta)
! temp1 = -0.5d0*r*omega_grid**2d0
! temp2 = 0d0
! call mom_cyl2cart(nx,ny,temp1,temp2,temp3,temp4,x,y)
! do j=1,ny
! do i=1,nx
! write(98,*) i, j, temp1(i,j),temp4(i,j)
! end do
! end do
! call exit(0)
!$OMP PARALLEL DO PRIVATE(i,j)
do j=1,ny
do i=1,nx
delta_mom_X(i,j) = delta_mom_X(i,j) + delta_mom_X1(i,j)
delta_mom_Y(i,j) = delta_mom_Y(i,j) + delta_mom_Y1(i,j)
delta_mom_A(i,j) = delta_mom_A(i,j) + delta_mom_X1(i,j)*&
(x(i,j)/r(i,j)) + delta_mom_Y1(i,j)*(y(i,j)/r(i,j))
delta_mom_B(i,j) = delta_mom_B(i,j) + r(i,j)*(delta_mom_Y1(i,j)*&
(x(i,j)/r(i,j)) - delta_mom_X1(i,j)*(y(i,j)/r(i,j)))
delta_mom_A(i,j) = delta_mom_A(i,j) + rho(i,j)*( (mom_B(i,j)/rho(i,j))**2d0 )/( r(i,j)**3d0 )
! delta_mom_B(i,j) = delta_mom_B(i,j) - rho(i,j)*( (-y(i,j)*v_x(i,j)+x(i,j)*v_y(i,j))*(x(i,j)*v_x(i,j)+y(i,j)*v_y(i,j)) )/( r(i,j)**3d0)
if (omega_grid .gt. 1d-9) then
delta_mom_X(i,j) = delta_mom_X(i,j) + omega_grid*mom_Y(i,j)
delta_mom_Y(i,j) = delta_mom_Y(i,j) - omega_grid*mom_X(i,j)
end if
end do
end do
!$OMP END PARALLEL DO
end subroutine grid_timedifs