!> @file diffusion_e.f90 !------------------------------------------------------------------------------! ! This file is part of PALM. ! ! PALM is free software: you can redistribute it and/or modify it under the ! terms of the GNU General Public License as published by the Free Software ! Foundation, either version 3 of the License, or (at your option) any later ! version. ! ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. ! ! You should have received a copy of the GNU General Public License along with ! PALM. If not, see . ! ! Copyright 1997-2016 Leibniz Universitaet Hannover !------------------------------------------------------------------------------! ! ! Current revisions: ! ----------------- ! ! ! Former revisions: ! ----------------- ! $Id: diffusion_e.f90 2038 2016-10-26 11:16:56Z gronemeier $ ! ! 2037 2016-10-26 11:15:40Z knoop ! Anelastic approximation implemented ! ! 2000 2016-08-20 18:09:15Z knoop ! Forced header and separation lines into 80 columns ! ! 1873 2016-04-18 14:50:06Z maronga ! Module renamed (removed _mod) ! ! ! 1850 2016-04-08 13:29:27Z maronga ! Module renamed ! Adapted for modularization of microphysics ! ! 1831 2016-04-07 13:15:51Z hoffmann ! turbulence renamed collision_turbulence ! ! 1682 2015-10-07 23:56:08Z knoop ! Code annotations made doxygen readable ! ! 1374 2014-04-25 12:55:07Z raasch ! missing variables added to ONLY list ! rif removed from acc-present-list ! ! 1340 2014-03-25 19:45:13Z kanani ! REAL constants defined as wp-kind ! ! 1320 2014-03-20 08:40:49Z raasch ! ONLY-attribute added to USE-statements, ! kind-parameters added to all INTEGER and REAL declaration statements, ! kinds are defined in new module kinds, ! revision history before 2012 removed, ! comment fields (!:) to be used for variable explanations added to ! all variable declaration statements ! ! 1257 2013-11-08 15:18:40Z raasch ! openacc loop and loop vector clauses removed ! ! 1179 2013-06-14 05:57:58Z raasch ! use_reference renamed use_single_reference_value ! ! 1171 2013-05-30 11:27:45Z raasch ! use_reference-case activated in accelerator version ! ! 1128 2013-04-12 06:19:32Z raasch ! loop index bounds in accelerator version replaced by i_left, i_right, j_south, ! j_north ! ! 1065 2012-11-22 17:42:36Z hoffmann ! Enabled the claculation of diss in case of turbulence = .TRUE. (parameterized ! effects of turbulence on autoconversion and accretion in two-moments cloud ! physics scheme). ! ! 1036 2012-10-22 13:43:42Z raasch ! code put under GPL (PALM 3.9) ! ! 1015 2012-09-27 09:23:24Z raasch ! accelerator version (*_acc) added, ! adjustment of mixing length to the Prandtl mixing length at first grid point ! above ground removed ! ! 1010 2012-09-20 07:59:54Z raasch ! cpp switch __nopointer added for pointer free version ! ! 1001 2012-09-13 14:08:46Z raasch ! most arrays comunicated by module instead of parameter list ! ! 825 2012-02-19 03:03:44Z raasch ! wang_collision_kernel renamed wang_kernel ! ! Revision 1.1 1997/09/19 07:40:24 raasch ! Initial revision ! ! ! Description: ! ------------ !> Diffusion- and dissipation terms for the TKE !------------------------------------------------------------------------------! MODULE diffusion_e_mod PRIVATE PUBLIC diffusion_e, diffusion_e_acc INTERFACE diffusion_e MODULE PROCEDURE diffusion_e MODULE PROCEDURE diffusion_e_ij END INTERFACE diffusion_e INTERFACE diffusion_e_acc MODULE PROCEDURE diffusion_e_acc END INTERFACE diffusion_e_acc CONTAINS !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for all grid points !------------------------------------------------------------------------------! SUBROUTINE diffusion_e( var, var_reference ) USE arrays_3d, & ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw, & drho_air, rho_air_zw USE control_parameters, & ONLY: atmos_ocean_sign, g, use_single_reference_value, & wall_adjustment, wall_adjustment_factor USE grid_variables, & ONLY: ddx2, ddy2 USE indices, & ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb, nzb_s_inner,& nzt USE kinds USE microphysics_mod, & ONLY: collision_turbulence USE particle_attributes, & ONLY: use_sgs_for_particles, wang_kernel IMPLICIT NONE INTEGER(iwp) :: i !< INTEGER(iwp) :: j !< INTEGER(iwp) :: k !< REAL(wp) :: dvar_dz !< REAL(wp) :: l_stable !< REAL(wp) :: var_reference !< #if defined( __nopointer ) REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !< #else REAL(wp), DIMENSION(:,:,:), POINTER :: var !< #endif REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: dissipation !< REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: l !< REAL(wp), DIMENSION(nzb+1:nzt,nys:nyn) :: ll !< ! !-- This if clause must be outside the k-loop because otherwise !-- runtime errors occur with -C hopt on NEC IF ( use_single_reference_value ) THEN DO i = nxl, nxr DO j = nys, nyn DO k = nzb_s_inner(j,i)+1, nzt ! !-- Calculate the mixing length (for dissipation) dvar_dz = atmos_ocean_sign * & ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) IF ( dvar_dz > 0.0_wp ) THEN l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & SQRT( g / var_reference * dvar_dz ) + 1E-5_wp ELSE l_stable = l_grid(k) ENDIF ! !-- Adjustment of the mixing length IF ( wall_adjustment ) THEN l(k,j) = MIN( wall_adjustment_factor * & ( zu(k) - zw(nzb_s_inner(j,i)) ), & l_grid(k), l_stable ) ll(k,j) = MIN( wall_adjustment_factor * & ( zu(k) - zw(nzb_s_inner(j,i)) ), & l_grid(k) ) ELSE l(k,j) = MIN( l_grid(k), l_stable ) ll(k,j) = l_grid(k) ENDIF ENDDO ENDDO ! !-- Calculate the tendency terms DO j = nys, nyn DO k = nzb_s_inner(j,i)+1, nzt dissipation(k,j) = ( 0.19_wp + 0.74_wp * l(k,j) / ll(k,j) ) * & e(k,j,i) * SQRT( e(k,j,i) ) / l(k,j) tend(k,j,i) = tend(k,j,i) & + ( & ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & ) * ddx2 & + ( & ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & ) * ddy2 & + ( & ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & * rho_air_zw(k) & - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & * rho_air_zw(k-1) & ) * ddzw(k) * drho_air(k) & - dissipation(k,j) ENDDO ENDDO ! !-- Store dissipation if needed for calculating the sgs particle !-- velocities IF ( use_sgs_for_particles .OR. wang_kernel .OR. & collision_turbulence ) THEN DO j = nys, nyn DO k = nzb_s_inner(j,i)+1, nzt diss(k,j,i) = dissipation(k,j) ENDDO ENDDO ENDIF ENDDO ELSE DO i = nxl, nxr DO j = nys, nyn DO k = nzb_s_inner(j,i)+1, nzt ! !-- Calculate the mixing length (for dissipation) dvar_dz = atmos_ocean_sign * & ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) IF ( dvar_dz > 0.0_wp ) THEN l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5_wp ELSE l_stable = l_grid(k) ENDIF ! !-- Adjustment of the mixing length IF ( wall_adjustment ) THEN l(k,j) = MIN( wall_adjustment_factor * & ( zu(k) - zw(nzb_s_inner(j,i)) ), & l_grid(k), l_stable ) ll(k,j) = MIN( wall_adjustment_factor * & ( zu(k) - zw(nzb_s_inner(j,i)) ), & l_grid(k) ) ELSE l(k,j) = MIN( l_grid(k), l_stable ) ll(k,j) = l_grid(k) ENDIF ENDDO ENDDO ! !-- Calculate the tendency terms DO j = nys, nyn DO k = nzb_s_inner(j,i)+1, nzt dissipation(k,j) = ( 0.19_wp + 0.74_wp * l(k,j) / ll(k,j) ) * & e(k,j,i) * SQRT( e(k,j,i) ) / l(k,j) tend(k,j,i) = tend(k,j,i) & + ( & ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & ) * ddx2 & + ( & ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & ) * ddy2 & + ( & ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & * rho_air_zw(k) & - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & * rho_air_zw(k-1) & ) * ddzw(k) * drho_air(k) & - dissipation(k,j) ENDDO ENDDO ! !-- Store dissipation if needed for calculating the sgs particle !-- velocities IF ( use_sgs_for_particles .OR. wang_kernel .OR. & collision_turbulence ) THEN DO j = nys, nyn DO k = nzb_s_inner(j,i)+1, nzt diss(k,j,i) = dissipation(k,j) ENDDO ENDDO ENDIF ENDDO ENDIF ! !-- Boundary condition for dissipation IF ( use_sgs_for_particles .OR. wang_kernel .OR. & collision_turbulence ) THEN DO i = nxl, nxr DO j = nys, nyn diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) ENDDO ENDDO ENDIF END SUBROUTINE diffusion_e !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for all grid points - accelerator version !------------------------------------------------------------------------------! SUBROUTINE diffusion_e_acc( var, var_reference ) USE arrays_3d, & ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw, & drho_air, rho_air_zw USE control_parameters, & ONLY: atmos_ocean_sign, g, use_single_reference_value, & wall_adjustment, wall_adjustment_factor USE grid_variables, & ONLY: ddx2, ddy2 USE indices, & ONLY: i_left, i_right, j_north, j_south, nxlg, nxrg, nyng, nysg, & nzb, nzb_s_inner, nzt USE kinds USE microphysics_mod, & ONLY: collision_turbulence USE particle_attributes, & ONLY: use_sgs_for_particles, wang_kernel IMPLICIT NONE INTEGER(iwp) :: i !< INTEGER(iwp) :: j !< INTEGER(iwp) :: k !< REAL(wp) :: dissipation !< REAL(wp) :: dvar_dz !< REAL(wp) :: l !< REAL(wp) :: ll !< REAL(wp) :: l_stable !< REAL(wp) :: var_reference !< #if defined( __nopointer ) REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !< #else REAL(wp), DIMENSION(:,:,:), POINTER :: var !< #endif ! !-- This if clause must be outside the k-loop because otherwise !-- runtime errors occur with -C hopt on NEC IF ( use_single_reference_value ) THEN !$acc kernels present( ddzu, ddzw, dd2zu, diss, e, km, l_grid ) & !$acc present( nzb_s_inner, tend, var, zu, zw ) DO i = i_left, i_right DO j = j_south, j_north DO k = 1, nzt IF ( k > nzb_s_inner(j,i) ) THEN ! !-- Calculate the mixing length (for dissipation) dvar_dz = atmos_ocean_sign * & ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) IF ( dvar_dz > 0.0_wp ) THEN l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & SQRT( g / var_reference * dvar_dz ) + 1E-5_wp ELSE l_stable = l_grid(k) ENDIF ! !-- Adjustment of the mixing length IF ( wall_adjustment ) THEN l = MIN( wall_adjustment_factor * & ( zu(k) - zw(nzb_s_inner(j,i)) ), & l_grid(k), l_stable ) ll = MIN( wall_adjustment_factor * & ( zu(k) - zw(nzb_s_inner(j,i)) ), & l_grid(k) ) ELSE l = MIN( l_grid(k), l_stable ) ll = l_grid(k) ENDIF ! !-- Calculate the tendency terms dissipation = ( 0.19_wp + 0.74_wp * l / ll ) * & e(k,j,i) * SQRT( e(k,j,i) ) / l tend(k,j,i) = tend(k,j,i) & + ( & ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & ) * ddx2 & + ( & ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & ) * ddy2 & + ( & ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & * rho_air_zw(k) & - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & * rho_air_zw(k-1) & ) * ddzw(k) * drho_air(k) & - dissipation ! !-- Store dissipation if needed for calculating the sgs particle !-- velocities IF ( use_sgs_for_particles .OR. wang_kernel .OR. & collision_turbulence ) THEN diss(k,j,i) = dissipation ENDIF ENDIF ENDDO ENDDO ENDDO !$acc end kernels ELSE !$acc kernels present( ddzu, ddzw, dd2zu, diss, e, km, l_grid ) & !$acc present( nzb_s_inner, tend, var, zu, zw ) DO i = i_left, i_right DO j = j_south, j_north DO k = 1, nzt IF ( k > nzb_s_inner(j,i) ) THEN ! !-- Calculate the mixing length (for dissipation) dvar_dz = atmos_ocean_sign * & ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) IF ( dvar_dz > 0.0_wp ) THEN l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5_wp ELSE l_stable = l_grid(k) ENDIF ! !-- Adjustment of the mixing length IF ( wall_adjustment ) THEN l = MIN( wall_adjustment_factor * & ( zu(k) - zw(nzb_s_inner(j,i)) ), & l_grid(k), l_stable ) ll = MIN( wall_adjustment_factor * & ( zu(k) - zw(nzb_s_inner(j,i)) ), & l_grid(k) ) ELSE l = MIN( l_grid(k), l_stable ) ll = l_grid(k) ENDIF ! !-- Calculate the tendency terms dissipation = ( 0.19_wp + 0.74_wp * l / ll ) * & e(k,j,i) * SQRT( e(k,j,i) ) / l tend(k,j,i) = tend(k,j,i) & + ( & ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & ) * ddx2 & + ( & ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & ) * ddy2 & + ( & ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & * rho_air_zw(k) & - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & * rho_air_zw(k-1) & ) * ddzw(k) * drho_air(k) & - dissipation ! !-- Store dissipation if needed for calculating the sgs !-- particle velocities IF ( use_sgs_for_particles .OR. wang_kernel .OR. & collision_turbulence ) THEN diss(k,j,i) = dissipation ENDIF ENDIF ENDDO ENDDO ENDDO !$acc end kernels ENDIF ! !-- Boundary condition for dissipation IF ( use_sgs_for_particles .OR. wang_kernel .OR. & collision_turbulence ) THEN !$acc kernels present( diss, nzb_s_inner ) DO i = i_left, i_right DO j = j_south, j_north diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) ENDDO ENDDO !$acc end kernels ENDIF END SUBROUTINE diffusion_e_acc !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for grid point i,j !------------------------------------------------------------------------------! SUBROUTINE diffusion_e_ij( i, j, var, var_reference ) USE arrays_3d, & ONLY: dd2zu, ddzu, ddzw, diss, e, km, l_grid, tend, zu, zw, & drho_air, rho_air_zw USE control_parameters, & ONLY: atmos_ocean_sign, g, use_single_reference_value, & wall_adjustment, wall_adjustment_factor USE grid_variables, & ONLY: ddx2, ddy2 USE indices, & ONLY: nxlg, nxrg, nyng, nysg, nzb, nzb_s_inner, nzt USE kinds USE microphysics_mod, & ONLY: collision_turbulence USE particle_attributes, & ONLY: use_sgs_for_particles, wang_kernel IMPLICIT NONE INTEGER(iwp) :: i !< INTEGER(iwp) :: j !< INTEGER(iwp) :: k !< REAL(wp) :: dvar_dz !< REAL(wp) :: l_stable !< REAL(wp) :: var_reference !< #if defined( __nopointer ) REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: var !< #else REAL(wp), DIMENSION(:,:,:), POINTER :: var !< #endif REAL(wp), DIMENSION(nzb+1:nzt) :: dissipation !< REAL(wp), DIMENSION(nzb+1:nzt) :: l !< REAL(wp), DIMENSION(nzb+1:nzt) :: ll !< ! !-- Calculate the mixing length (for dissipation) DO k = nzb_s_inner(j,i)+1, nzt dvar_dz = atmos_ocean_sign * & ( var(k+1,j,i) - var(k-1,j,i) ) * dd2zu(k) IF ( dvar_dz > 0.0_wp ) THEN IF ( use_single_reference_value ) THEN l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & SQRT( g / var_reference * dvar_dz ) + 1E-5_wp ELSE l_stable = 0.76_wp * SQRT( e(k,j,i) ) / & SQRT( g / var(k,j,i) * dvar_dz ) + 1E-5_wp ENDIF ELSE l_stable = l_grid(k) ENDIF ! !-- Adjustment of the mixing length IF ( wall_adjustment ) THEN l(k) = MIN( wall_adjustment_factor * & ( zu(k) - zw(nzb_s_inner(j,i)) ), l_grid(k), & l_stable ) ll(k) = MIN( wall_adjustment_factor * & ( zu(k) - zw(nzb_s_inner(j,i)) ), l_grid(k) ) ELSE l(k) = MIN( l_grid(k), l_stable ) ll(k) = l_grid(k) ENDIF ! !-- Calculate the tendency term dissipation(k) = ( 0.19_wp + 0.74_wp * l(k) / ll(k) ) * e(k,j,i) * & SQRT( e(k,j,i) ) / l(k) tend(k,j,i) = tend(k,j,i) & + ( & ( km(k,j,i)+km(k,j,i+1) ) * ( e(k,j,i+1)-e(k,j,i) ) & - ( km(k,j,i)+km(k,j,i-1) ) * ( e(k,j,i)-e(k,j,i-1) ) & ) * ddx2 & + ( & ( km(k,j,i)+km(k,j+1,i) ) * ( e(k,j+1,i)-e(k,j,i) ) & - ( km(k,j,i)+km(k,j-1,i) ) * ( e(k,j,i)-e(k,j-1,i) ) & ) * ddy2 & + ( & ( km(k,j,i)+km(k+1,j,i) ) * ( e(k+1,j,i)-e(k,j,i) ) * ddzu(k+1) & * rho_air_zw(k) & - ( km(k,j,i)+km(k-1,j,i) ) * ( e(k,j,i)-e(k-1,j,i) ) * ddzu(k) & * rho_air_zw(k-1) & ) * ddzw(k) * drho_air(k) & - dissipation(k) ENDDO ! !-- Store dissipation if needed for calculating the sgs particle velocities IF ( use_sgs_for_particles .OR. wang_kernel .OR. & collision_turbulence ) THEN DO k = nzb_s_inner(j,i)+1, nzt diss(k,j,i) = dissipation(k) ENDDO ! !-- Boundary condition for dissipation diss(nzb_s_inner(j,i),j,i) = diss(nzb_s_inner(j,i)+1,j,i) ENDIF END SUBROUTINE diffusion_e_ij END MODULE diffusion_e_mod