!> @file advec_w_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_w_up.f90 4360 2020-01-07 11:25:50Z schwenkel $ ! Corrected "Former revisions" section ! ! 3655 2019-01-07 16:51:22Z knoop ! variables documented ! ! Revision 1.1 1997/08/29 08:56:33 raasch ! Initial revision ! ! ! Description: ! ------------ !> Advection term for the w velocity-component using 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_w_up_mod PRIVATE PUBLIC advec_w_up INTERFACE advec_w_up MODULE PROCEDURE advec_w_up MODULE PROCEDURE advec_w_up_ij END INTERFACE advec_w_up CONTAINS !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for all grid points !------------------------------------------------------------------------------! SUBROUTINE advec_w_up USE arrays_3d, & ONLY: ddzw, tend, u, v, w USE control_parameters, & ONLY: u_gtrans, v_gtrans USE grid_variables, & ONLY: ddx, ddy USE indices, & ONLY: nxl, nxr, nyn, nys, 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 DO i = nxl, nxr DO j = nys, nyn DO k = nzb+1, nzt-1 ! !-- x-direction ukomp = 0.25_wp * ( u(k,j,i) + u(k,j,i+1) + & u(k+1,j,i) + u(k+1,j,i+1) ) - u_gtrans IF ( ukomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - ukomp * & ( w(k,j,i) - w(k,j,i-1) ) * ddx ELSE tend(k,j,i) = tend(k,j,i) - ukomp * & ( w(k,j,i+1) - w(k,j,i) ) * ddx ENDIF ! !-- y-direction vkomp = 0.25_wp * ( v(k,j,i) + v(k,j+1,i) + & v(k+1,j,i) + v(k+1,j+1,i) ) - v_gtrans IF ( vkomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - vkomp * & ( w(k,j,i) - w(k,j-1,i) ) * ddy ELSE tend(k,j,i) = tend(k,j,i) - vkomp * & ( w(k,j+1,i) - w(k,j,i) ) * ddy ENDIF ! !-- z-direction IF ( w(k,j,i) > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) ELSE tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) ENDIF ENDDO ENDDO ENDDO END SUBROUTINE advec_w_up !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for grid point i,j !------------------------------------------------------------------------------! SUBROUTINE advec_w_up_ij( i, j ) USE arrays_3d, & ONLY: ddzw, tend, u, v, w USE control_parameters, & ONLY: u_gtrans, v_gtrans USE grid_variables, & ONLY: ddx, ddy USE indices, & ONLY: 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 DO k = nzb+1, nzt-1 ! !-- x-direction ukomp = 0.25_wp * ( u(k,j,i) + u(k,j,i+1) + u(k+1,j,i) + u(k+1,j,i+1) & ) - u_gtrans IF ( ukomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - ukomp * & ( w(k,j,i) - w(k,j,i-1) ) * ddx ELSE tend(k,j,i) = tend(k,j,i) - ukomp * & ( w(k,j,i+1) - w(k,j,i) ) * ddx ENDIF ! !-- y-direction vkomp = 0.25_wp * ( v(k,j,i) + v(k,j+1,i) + v(k+1,j,i) + v(k+1,j+1,i) & ) - v_gtrans IF ( vkomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - vkomp * & ( w(k,j,i) - w(k,j-1,i) ) * ddy ELSE tend(k,j,i) = tend(k,j,i) - vkomp * & ( w(k,j+1,i) - w(k,j,i) ) * ddy ENDIF ! !-- z-direction IF ( w(k,j,i) > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) ELSE tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) ENDIF ENDDO END SUBROUTINE advec_w_up_ij END MODULE advec_w_up_mod