!> @file advec_s_up.f90 !------------------------------------------------------------------------------! ! This file is part of the PALM model system. ! ! 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 1997-2020 Leibniz Universitaet Hannover !------------------------------------------------------------------------------! ! ! Current revisions: ! ----------------- ! ! ! Former revisions: ! ----------------- ! $Id: advec_s_up.f90 4360 2020-01-07 11:25:50Z knoop $ ! Corrected "Former revisions" section ! ! 3927 2019-04-23 13:24:29Z raasch ! pointer attribute removed from scalar 3d-array for performance reasons ! ! 3665 2019-01-10 08:28:24Z raasch ! unused variables removed ! ! 3655 2019-01-07 16:51:22Z knoop ! nopointer option removed ! ! Revision 1.1 1997/08/29 08:54:33 raasch ! Initial revision ! ! ! Description: ! ------------ !> Advection term for scalar quantities using the Upstream scheme. !> NOTE: vertical advection at k=1 still has wrong grid spacing for w>0! !> The same problem occurs for all topography boundaries! !------------------------------------------------------------------------------! MODULE advec_s_up_mod PRIVATE PUBLIC advec_s_up INTERFACE advec_s_up MODULE PROCEDURE advec_s_up MODULE PROCEDURE advec_s_up_ij END INTERFACE advec_s_up CONTAINS !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for all grid points !------------------------------------------------------------------------------! SUBROUTINE advec_s_up( sk ) USE arrays_3d, & ONLY: ddzu, tend, u, v, w USE control_parameters, & ONLY: u_gtrans, v_gtrans USE grid_variables, & ONLY: ddx, ddy USE indices, & ONLY: nxl, nxlg, nxr, nxrg, nyn, nyng, nys, nysg, nzb, nzt USE kinds IMPLICIT NONE INTEGER(iwp) :: i !< grid index along x-direction INTEGER(iwp) :: j !< grid index along y-direction INTEGER(iwp) :: k !< grid index along z-direction REAL(wp) :: ukomp !< advection velocity along x-direction REAL(wp) :: vkomp !< advection velocity along y-direction REAL(wp) :: wkomp !< advection velocity along z-direction REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: sk !< treated scalar DO i = nxl, nxr DO j = nys, nyn DO k = nzb+1, nzt ! !-- x-direction ukomp = 0.5_wp * ( u(k,j,i) + u(k,j,i+1) ) - u_gtrans IF ( ukomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - ukomp * & ( sk(k,j,i) - sk(k,j,i-1) ) * ddx ELSE tend(k,j,i) = tend(k,j,i) - ukomp * & ( sk(k,j,i+1) - sk(k,j,i) ) * ddx ENDIF ! !-- y-direction vkomp = 0.5_wp * ( v(k,j,i) + v(k,j+1,i) ) - v_gtrans IF ( vkomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - vkomp * & ( sk(k,j,i) - sk(k,j-1,i) ) * ddy ELSE tend(k,j,i) = tend(k,j,i) - vkomp * & ( sk(k,j+1,i) - sk(k,j,i) ) * ddy ENDIF ! !-- z-direction wkomp = 0.5_wp * ( w(k,j,i) + w(k-1,j,i) ) IF ( wkomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - wkomp * & ( sk(k,j,i) - sk(k-1,j,i) ) * ddzu(k) ELSE tend(k,j,i) = tend(k,j,i) - wkomp * & ( sk(k+1,j,i)-sk(k,j,i) ) * ddzu(k+1) ENDIF ENDDO ENDDO ENDDO END SUBROUTINE advec_s_up !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for grid point i,j !------------------------------------------------------------------------------! SUBROUTINE advec_s_up_ij( i, j, sk ) USE arrays_3d, & ONLY: ddzu, tend, u, v, w USE control_parameters, & ONLY: u_gtrans, v_gtrans USE grid_variables, & ONLY: ddx, ddy USE indices, & ONLY: nxlg, nxrg, nyng, nysg, nzb, nzt USE kinds IMPLICIT NONE INTEGER(iwp) :: i !< grid index along x-direction INTEGER(iwp) :: j !< grid index along y-direction INTEGER(iwp) :: k !< grid index along z-direction REAL(wp) :: ukomp !< advection velocity along x-direction REAL(wp) :: vkomp !< advection velocity along y-direction REAL(wp) :: wkomp !< advection velocity along z-direction REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: sk !< treated scalar DO k = nzb+1, nzt ! !-- x-direction ukomp = 0.5_wp * ( u(k,j,i) + u(k,j,i+1) ) - u_gtrans IF ( ukomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - ukomp * & ( sk(k,j,i) - sk(k,j,i-1) ) * ddx ELSE tend(k,j,i) = tend(k,j,i) - ukomp * & ( sk(k,j,i+1) - sk(k,j,i) ) * ddx ENDIF ! !-- y-direction vkomp = 0.5_wp * ( v(k,j,i) + v(k,j+1,i) ) - v_gtrans IF ( vkomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - vkomp * & ( sk(k,j,i) - sk(k,j-1,i) ) * ddy ELSE tend(k,j,i) = tend(k,j,i) - vkomp * & ( sk(k,j+1,i) - sk(k,j,i) ) * ddy ENDIF ! !-- z-direction wkomp = 0.5_wp * ( w(k,j,i) + w(k-1,j,i) ) IF ( wkomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - wkomp * & ( sk(k,j,i) - sk(k-1,j,i) ) * ddzu(k) ELSE tend(k,j,i) = tend(k,j,i) - wkomp * & ( sk(k+1,j,i)-sk(k,j,i) ) * ddzu(k+1) ENDIF ENDDO END SUBROUTINE advec_s_up_ij END MODULE advec_s_up_mod