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Boundary_multiphase_outlet.F90
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#include "./preprocessor.h"
!=======================================================================================================================================================================================================================
!---------------------- multiphase outlet convective BC ----------------------
! convective bc applies to unknown PDFs only
!=======================================================================================================================================================================================================================
!************************** before odd step kernel *****************************************
subroutine outlet_convective_BC_before_odd !before streaming type BC
use Misc_module
use Fluid_singlephase
use Fluid_multiphase
use mpi_variable
IMPLICIT NONE
integer :: i,j,k
real(kind=8) :: temp,u_convec,ft5,ft6,ft11,ft12,ft13,ft14,ft15,ft16,ft17,ft18
integer(kind=1) :: wall_indicator
if(idz==npz-1)then
!inlet average velocity
u_convec = uin_avg
temp = 1d0/(1d0+u_convec)
!$omp parallel do private(wall_indicator,i)
!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_openacc
!$acc kernels present(f0,f1,f2,f3,f4,f5,f6,f7,f8,f9,f10,f11,f12,f13,f14,f15,f16,f17,f18, &
!$acc & g0,g1,g2,g3,g4,g5,g6,g7,g8,g9,g10,g11,g12,g13,g14,g15,g16,g17,g18,phi,walls,u,v,w,f_convec_bc,g_convec_bc,phi_convec_bc)
!$acc loop collapse(2) device_type(NVIDIA)
do j=1,ny
do i=1,nx
wall_indicator = walls(i,j,nz)
phi(i,j,nz+1) = ((phi_convec_bc(i,j) + u_convec*phi(i,j,nz))*temp) * (1-wall_indicator) + phi(i,j,nz+1)*wall_indicator
phi_convec_bc(i,j) = phi(i,j,nz+1) !store PDF for next step
phi(i,j,nz+2) = phi(i,j,nz+1)
phi(i,j,nz+3) = phi(i,j,nz+1)
phi(i,j,nz+4) = phi(i,j,nz+1) !overlap_phi=4
!if outlet convective BC
f6(i , j , nz + 1) = ((f_convec_bc(i,j,6) + u_convec * f6(i , j , nz + 1 - 1)) * temp) * (1 - wall_indicator) + f6(i , j , nz + 1)*wall_indicator
f13(i - 1, j , nz + 1) = ((f_convec_bc(i,j,13) + u_convec * f13(i - 1, j , nz + 1 - 1)) * temp) * (1 - wall_indicator) + f13(i - 1, j , nz + 1)*wall_indicator
f14(i + 1, j , nz + 1) = ((f_convec_bc(i,j,14) + u_convec * f14(i + 1, j , nz + 1 - 1)) * temp) * (1 - wall_indicator) + f14(i + 1, j , nz + 1)*wall_indicator
f17(i , j - 1, nz + 1) = ((f_convec_bc(i,j,17) + u_convec * f17(i , j - 1, nz + 1 - 1)) * temp) * (1 - wall_indicator) + f17(i , j - 1, nz + 1)*wall_indicator
f18(i , j + 1, nz + 1) = ((f_convec_bc(i,j,18) + u_convec * f18(i , j + 1, nz + 1 - 1)) * temp) * (1 - wall_indicator) + f18(i , j + 1, nz + 1)*wall_indicator
g6(i , j , nz + 1) = ((g_convec_bc(i,j,6) + u_convec * g6(i , j , nz + 1 - 1)) * temp) * (1 - wall_indicator) + g6(i , j , nz + 1)*wall_indicator
g13(i - 1, j , nz + 1) = ((g_convec_bc(i,j,13) + u_convec * g13(i - 1, j , nz + 1 - 1)) * temp) * (1 - wall_indicator) + g13(i - 1, j , nz + 1)*wall_indicator
g14(i + 1, j , nz + 1) = ((g_convec_bc(i,j,14) + u_convec * g14(i + 1, j , nz + 1 - 1)) * temp) * (1 - wall_indicator) + g14(i + 1, j , nz + 1)*wall_indicator
g17(i , j - 1, nz + 1) = ((g_convec_bc(i,j,17) + u_convec * g17(i , j - 1, nz + 1 - 1)) * temp) * (1 - wall_indicator) + g17(i , j - 1, nz + 1)*wall_indicator
g18(i , j + 1, nz + 1) = ((g_convec_bc(i,j,18) + u_convec * g18(i , j + 1, nz + 1 - 1)) * temp) * (1 - wall_indicator) + g18(i , j + 1, nz + 1)*wall_indicator
f_convec_bc(i,j,6) = f6(i , j , nz + 1)
f_convec_bc(i,j,13) = f13(i - 1, j , nz + 1)
f_convec_bc(i,j,14) = f14(i + 1, j , nz + 1)
f_convec_bc(i,j,17) = f17(i , j - 1, nz + 1)
f_convec_bc(i,j,18) = f18(i , j + 1, nz + 1)
g_convec_bc(i,j,6) = g6(i , j , nz + 1)
g_convec_bc(i,j,13) = g13(i - 1, j , nz + 1)
g_convec_bc(i,j,14) = g14(i + 1, j , nz + 1)
g_convec_bc(i,j,17) = g17(i , j - 1, nz + 1)
g_convec_bc(i,j,18) = g18(i , j + 1, nz + 1)
enddo
enddo
!$acc end kernels
endif
end subroutine outlet_convective_BC_before_odd
!************************** after odd step kernel *****************************************
subroutine outlet_convective_BC_after_odd !after streaming type BC
use Misc_module
use Fluid_singlephase
use Fluid_multiphase
use mpi_variable
IMPLICIT NONE
integer :: i,j,k
real(kind=8) :: temp,u_convec,ft5,ft6,ft11,ft12,ft13,ft14,ft15,ft16,ft17,ft18
integer(kind=1) :: wall_indicator
if(idz==npz-1)then
!inlet average velocity
u_convec = uin_avg
temp = 1d0/(1d0+u_convec)
!$omp parallel do private(wall_indicator,i)
!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_openacc
!$acc kernels present(f0,f1,f2,f3,f4,f5,f6,f7,f8,f9,f10,f11,f12,f13,f14,f15,f16,f17,f18,&
!$acc & g0,g1,g2,g3,g4,g5,g6,g7,g8,g9,g10,g11,g12,g13,g14,g15,g16,g17,g18,phi,walls,u,v,w,f_convec_bc,g_convec_bc,phi_convec_bc)
!$acc loop collapse(2) device_type(NVIDIA)
do j=1,ny
do i=1,nx
wall_indicator = walls(i,j,nz)
phi(i,j,nz+1) = ((phi_convec_bc(i,j) + u_convec*phi(i,j,nz))*temp) * (1-wall_indicator) + phi(i,j,nz+1)*wall_indicator
phi_convec_bc(i,j) = phi(i,j,nz+1) !store PDF for next step
phi(i,j,nz+2) = phi(i,j,nz+1)
phi(i,j,nz+3) = phi(i,j,nz+1)
phi(i,j,nz+4) = phi(i,j,nz+1) !overlap_phi=4
!outlet convective bc
f5(i,j,nz) = (( f_convec_bc(i,j,6) + u_convec*f5(i,j,nz-1))*temp )* (1 - wall_indicator) + f5(i,j,nz)*wall_indicator
f11(i,j,nz) = (( f_convec_bc(i,j,14) + u_convec*f11(i,j,nz-1))*temp )* (1 - wall_indicator) + f11(i,j,nz)*wall_indicator
f12(i,j,nz) = (( f_convec_bc(i,j,13) + u_convec*f12(i,j,nz-1))*temp )* (1 - wall_indicator) + f12(i,j,nz)*wall_indicator
f15(i,j,nz) = (( f_convec_bc(i,j,18) + u_convec*f15(i,j,nz-1))*temp )* (1 - wall_indicator) + f15(i,j,nz)*wall_indicator
f16(i,j,nz) = (( f_convec_bc(i,j,17) + u_convec*f16(i,j,nz-1))*temp )* (1 - wall_indicator) + f16(i,j,nz)*wall_indicator
g5(i,j,nz) = (( g_convec_bc(i,j,6) + u_convec*g5(i,j,nz-1))*temp )* (1 - wall_indicator) + g5(i,j,nz)*wall_indicator
g11(i,j,nz) = (( g_convec_bc(i,j,14) + u_convec*g11(i,j,nz-1))*temp )* (1 - wall_indicator) + g11(i,j,nz)*wall_indicator
g12(i,j,nz) = (( g_convec_bc(i,j,13) + u_convec*g12(i,j,nz-1))*temp )* (1 - wall_indicator) + g12(i,j,nz)*wall_indicator
g15(i,j,nz) = (( g_convec_bc(i,j,18) + u_convec*g15(i,j,nz-1))*temp )* (1 - wall_indicator) + g15(i,j,nz)*wall_indicator
g16(i,j,nz) = (( g_convec_bc(i,j,17) + u_convec*g16(i,j,nz-1))*temp )* (1 - wall_indicator) + g16(i,j,nz)*wall_indicator
f_convec_bc(i,j,6) = f5(i,j,nz)
f_convec_bc(i,j,14) = f11(i,j,nz)
f_convec_bc(i,j,13) = f12(i,j,nz)
f_convec_bc(i,j,18) = f15(i,j,nz)
f_convec_bc(i,j,17) = f16(i,j,nz)
g_convec_bc(i,j,6) = g5(i,j,nz)
g_convec_bc(i,j,14) = g11(i,j,nz)
g_convec_bc(i,j,13) = g12(i,j,nz)
g_convec_bc(i,j,18) = g15(i,j,nz)
g_convec_bc(i,j,17) = g16(i,j,nz)
enddo
enddo
!$acc end kernels
endif
end subroutine outlet_convective_BC_after_odd
!=======================================================================================================================================================================================================================
!---------------------- Zou-He type pressure open outlet boundary conditions ----------------------
!=======================================================================================================================================================================================================================
!************************** before odd step kernel *****************************************
subroutine outlet_Zou_He_pressure_BC_before_odd !before streaming type BC
use Misc_module
use Fluid_singlephase
use Fluid_multiphase
use mpi_variable
IMPLICIT NONE
integer :: i,j,k
integer(kind=1) :: wall_indicator
real(kind=8) :: tmp1,tmp2,tnx,tny,rho1,rho2,ux1,uy1,uz1
if(idz==npz-1)then
!$omp parallel
!$omp do private(wall_indicator,tmp1,tmp2,tnx,tny,i)
!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_openacc
!$acc kernels present(f0,f1,f2,f3,f4,f5,f6,f7,f8,f9,f10,f11,f12,f13,f14,f15,f16,f17,f18,&
!$acc &g0,g1,g2,g3,g4,g5,g6,g7,g8,g9,g10,g11,g12,g13,g14,g15,g16,g17,g18,phi,walls)
!$acc loop collapse(2) device_type(NVIDIA)
do j=1,ny
do i=1,nx
wall_indicator = walls(i,j,nz)
phi(i,j,nz+1) = phi(i,j,nz)
phi(i,j,nz+2) = phi(i,j,nz)
phi(i,j,nz+3) = phi(i,j,nz)
phi(i,j,nz+4) = phi(i,j,nz) !overlap_phi=4
!outlet pressure BC k=1a
tmp1 = (&
f0(i,j,nz)+&
f1(i-1,j,nz)+&
f2(i+1,j,nz)+&
f3(i,j-1,nz)+&
f4(i,j+1,nz)+&
f7(i-1,j-1,nz)+&
f8(i+1,j-1,nz)+&
f9(i-1,j+1,nz)+&
f10(i+1,j+1,nz)+ 2d0*(&
f5(i,j,nz-1)+&
f11(i-1,j,nz-1)+&
f12(i+1,j,nz-1)+&
f15(i,j-1,nz-1)+&
f16(i,j+1,nz-1))+&
g0(i,j,nz)+&
g1(i-1,j,nz)+&
g2(i+1,j,nz)+&
g3(i,j-1,nz)+&
g4(i,j+1,nz)+&
g7(i-1,j-1,nz)+&
g8(i+1,j-1,nz)+&
g9(i-1,j+1,nz)+&
g10(i+1,j+1,nz)+ 2d0*(&
g5(i,j,nz-1)+&
g11(i-1,j,nz-1)+&
g12(i+1,j,nz-1)+&
g15(i,j-1,nz-1)+&
g16(i,j+1,nz-1))) - rho_out
tmp2 = tmp1*0.5d0*(1d0-phi(i,j,nz)) !fluid 2 net flux
tmp1 = tmp1 - tmp2 !fluid 1 net flux
tnx = 0.5d0*(&
f1(i-1,j,nz)+f7(i-1,j-1,nz)+f9(i-1,j+1,nz)-(&
f2(i+1,j,nz)+f8(i+1,j-1,nz)+f10(i+1,j+1,nz)))
tny = 0.5d0*(&
f3(i,j-1,nz)+f7(i-1,j-1,nz)+f8(i+1,j-1,nz)-(&
f4(i,j+1,nz)+f10(i+1,j+1,nz)+f9(i-1,j+1,nz)))
f6(i,j,nz+1) = (f5(i,j,nz-1)-0.333333333333333333d0*tmp1) * (1d0-wall_indicator) + f6(i,j,nz+1)*wall_indicator
f13(i-1,j,nz+1) = (f12(i+1,j,nz-1)-0.166666666666666667d0*tmp1 - tnx) * (1d0-wall_indicator) + f13(i-1,j,nz+1)*wall_indicator
f14(i+1,j,nz+1) = (f11(i-1,j,nz-1)-0.166666666666666667d0*tmp1 + tnx) * (1d0-wall_indicator) + f14(i+1,j,nz+1)*wall_indicator
f17(i,j-1,nz+1) = (f16(i,j+1,nz-1)-0.166666666666666667d0*tmp1 - tny) * (1d0-wall_indicator) + f17(i,j-1,nz+1)*wall_indicator
f18(i,j+1,nz+1) = (f15(i,j-1,nz-1)-0.166666666666666667d0*tmp1 + tny) * (1d0-wall_indicator) + f18(i,j+1,nz+1)*wall_indicator
tnx = 0.5d0*(&
g1(i-1,j,nz)+g7(i-1,j-1,nz)+g9(i-1,j+1,nz)-(&
g2(i+1,j,nz)+g8(i+1,j-1,nz)+g10(i+1,j+1,nz)))
tny = 0.5d0*(&
g3(i,j-1,nz)+g7(i-1,j-1,nz)+g8(i+1,j-1,nz)-(&
g4(i,j+1,nz)+g10(i+1,j+1,nz)+g9(i-1,j+1,nz)))
g6(i,j,nz+1) = (g5(i,j,nz-1)-0.333333333333333333d0*tmp2) * (1d0-wall_indicator) + g6(i,j,nz+1)*wall_indicator
g13(i-1,j,nz+1) = (g12(i+1,j,nz-1)-0.166666666666666667d0*tmp2 - tnx) * (1d0-wall_indicator) + g13(i-1,j,nz+1)*wall_indicator
g14(i+1,j,nz+1) = (g11(i-1,j,nz-1)-0.166666666666666667d0*tmp2 + tnx) * (1d0-wall_indicator) + g14(i+1,j,nz+1)*wall_indicator
g17(i,j-1,nz+1) = (g16(i,j+1,nz-1)-0.166666666666666667d0*tmp2 - tny) * (1d0-wall_indicator) + g17(i,j-1,nz+1)*wall_indicator
g18(i,j+1,nz+1) = (g15(i,j-1,nz-1)-0.166666666666666667d0*tmp2 + tny) * (1d0-wall_indicator) + g18(i,j+1,nz+1)*wall_indicator
enddo
enddo
!$acc end kernels
!$omp end parallel
endif
return
end subroutine outlet_Zou_He_pressure_BC_before_odd
!************************** after odd step kernel *****************************************
subroutine outlet_Zou_He_pressure_BC_after_odd !after streaming type BC
use Misc_module
use Fluid_singlephase
use Fluid_multiphase
use mpi_variable
IMPLICIT NONE
integer :: i,j,k
integer(kind=1) :: wall_indicator
real(kind=8) :: tmp1,tmp2,tnx,tny
if(idz==npz-1)then
!$omp parallel
!$omp do private(wall_indicator,tmp1,tmp2,tnx,tny,i)
!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_openacc
!$acc kernels present(f0,f1,f2,f3,f4,f5,f6,f7,f8,f9,f10,f11,f12,f13,f14,f15,f16,f17,f18,&
!$acc &g0,g1,g2,g3,g4,g5,g6,g7,g8,g9,g10,g11,g12,g13,g14,g15,g16,g17,g18,phi,walls)
!$acc loop collapse(2) device_type(NVIDIA)
do j=1,ny
do i=1,nx
wall_indicator = walls(i,j,nz)
phi(i,j,nz+1) = phi(i,j,nz)
phi(i,j,nz+2) = phi(i,j,nz)
phi(i,j,nz+3) = phi(i,j,nz)
phi(i,j,nz+4) = phi(i,j,nz) !overlap_phi=4
!inlet pressure BC k=1
tmp1 = (&
f0(i,j,nz)+&
f2(i,j,nz)+&
f1(i,j,nz)+&
f4(i,j,nz)+&
f3(i,j,nz)+&
f8(i,j,nz)+&
f7(i,j,nz)+&
f10(i,j,nz)+&
f9(i,j,nz)+2d0*(&
f6(i,j,nz)+&
f14(i,j,nz)+&
f13(i,j,nz)+&
f18(i,j,nz)+&
f17(i,j,nz))+&
g0(i,j,nz)+&
g2(i,j,nz)+&
g1(i,j,nz)+&
g4(i,j,nz)+&
g3(i,j,nz)+&
g8(i,j,nz)+&
g7(i,j,nz)+&
g10(i,j,nz)+&
g9(i,j,nz)+2d0*(&
g6(i,j,nz)+&
g14(i,j,nz)+&
g13(i,j,nz)+&
g18(i,j,nz)+&
g17(i,j,nz)) ) - rho_out
tmp2 = tmp1*0.5d0*(1d0-phi(i,j,nz)) !fluid 2 net flux
tmp1 = tmp1 - tmp2 !fluid 1 net flux
tnx = 0.5d0*( f2(i,j,nz)+f8(i,j,nz)+f10(i,j,nz)-(f1(i,j,nz)+f7(i,j,nz)+f9(i,j,nz)) )
tny = 0.5d0*( f4(i,j,nz)+f10(i,j,nz)+f9(i,j,nz)-(f3(i,j,nz)+f7(i,j,nz)+f8(i,j,nz)) )
f5(i,j,nz) = (f6(i,j,nz)-0.333333333333333333d0*tmp1)* (1d0-wall_indicator) + f5(i,j,nz)*wall_indicator
f11(i,j,nz) = (f14(i,j,nz)-0.166666666666666667d0*tmp1 + tnx)* (1d0-wall_indicator) + f11(i,j,nz)*wall_indicator
f12(i,j,nz) = (f13(i,j,nz)-0.166666666666666667d0*tmp1 - tnx)* (1d0-wall_indicator) + f12(i,j,nz)*wall_indicator
f15(i,j,nz) = (f18(i,j,nz)-0.166666666666666667d0*tmp1 + tny)* (1d0-wall_indicator) + f15(i,j,nz)*wall_indicator
f16(i,j,nz) = (f17(i,j,nz)-0.166666666666666667d0*tmp1 - tny)* (1d0-wall_indicator) + f16(i,j,nz)*wall_indicator
tnx = 0.5d0*( g2(i,j,nz)+g8(i,j,nz)+g10(i,j,nz)-(g1(i,j,nz)+g7(i,j,nz)+g9(i,j,nz)) )
tny = 0.5d0*( g4(i,j,nz)+g10(i,j,nz)+g9(i,j,nz)-(g3(i,j,nz)+g7(i,j,nz)+g8(i,j,nz)) )
g5(i,j,nz) = (g6(i,j,nz)-0.333333333333333333d0*tmp2)* (1d0-wall_indicator) + g5(i,j,nz)*wall_indicator
g11(i,j,nz) = (g14(i,j,nz)-0.166666666666666667d0*tmp2 + tnx)* (1d0-wall_indicator) + g11(i,j,nz)*wall_indicator
g12(i,j,nz) = (g13(i,j,nz)-0.166666666666666667d0*tmp2 - tnx)* (1d0-wall_indicator) + g12(i,j,nz)*wall_indicator
g15(i,j,nz) = (g18(i,j,nz)-0.166666666666666667d0*tmp2 + tny)* (1d0-wall_indicator) + g15(i,j,nz)*wall_indicator
g16(i,j,nz) = (g17(i,j,nz)-0.166666666666666667d0*tmp2 - tny)* (1d0-wall_indicator) + g16(i,j,nz)*wall_indicator
enddo
enddo
!$acc end kernels
!$omp end parallel
endif
return
end subroutine outlet_Zou_He_pressure_BC_after_odd