!> @file advec_u_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 1997-2019 Leibniz Universitaet Hannover !------------------------------------------------------------------------------! ! ! Current revisions: ! ----------------- ! ! ! Former revisions: ! ----------------- ! $Id: advec_u_up.f90 3655 2019-01-07 16:51:22Z kanani $ ! variables documented ! ! 3538 2018-11-20 10:55:41Z suehring ! Remove unnecessary double-masking of topography ! ! 2718 2018-01-02 08:49:38Z maronga ! Corrected "Former revisions" section ! ! 2696 2017-12-14 17:12:51Z kanani ! Change in file header (GPL part) ! ! 2233 2017-05-30 18:08:54Z suehring ! ! 2232 2017-05-30 17:47:52Z suehring ! topography representation via flags ! ! 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 ! ! ! 1682 2015-10-07 23:56:08Z knoop ! Code annotations made doxygen readable ! ! 1353 2014-04-08 15:21:23Z heinze ! REAL constants provided with KIND-attribute ! ! 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 ! ! 1036 2012-10-22 13:43:42Z raasch ! code put under GPL (PALM 3.9) ! ! Revision 1.1 1997/08/29 08:55:25 raasch ! Initial revision ! ! ! Description: ! ------------ !> Advection term for the u 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_u_up_mod PRIVATE PUBLIC advec_u_up INTERFACE advec_u_up MODULE PROCEDURE advec_u_up MODULE PROCEDURE advec_u_up_ij END INTERFACE advec_u_up CONTAINS !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for all grid points !------------------------------------------------------------------------------! SUBROUTINE advec_u_up 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: nxlu, 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 REAL(wp) :: wkomp !< advection velocity along z-direction DO i = nxlu, nxr DO j = nys, nyn DO k = nzb+1, nzt ! !-- x-direction ukomp = u(k,j,i) - u_gtrans IF ( ukomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - ukomp * & ( u(k,j,i) - u(k,j,i-1) ) * ddx ELSE tend(k,j,i) = tend(k,j,i) - ukomp * & ( u(k,j,i+1) - u(k,j,i) ) * ddx ENDIF ! !-- y-direction vkomp = 0.25_wp * ( v(k,j,i) + v(k,j+1,i) + & v(k,j,i-1) + v(k,j+1,i-1) ) - v_gtrans IF ( vkomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - vkomp * & ( u(k,j,i) - u(k,j-1,i) ) * ddy ELSE tend(k,j,i) = tend(k,j,i) - vkomp * & ( u(k,j+1,i) - u(k,j,i) ) * ddy ENDIF ! !-- z-direction wkomp = 0.25_wp * ( w(k,j,i) + w(k-1,j,i) + & w(k,j,i-1) + w(k-1,j,i-1) ) IF ( wkomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - wkomp * & ( u(k,j,i) - u(k-1,j,i) ) * ddzu(k) ELSE tend(k,j,i) = tend(k,j,i) - wkomp * & ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) ENDIF ENDDO ENDDO ENDDO END SUBROUTINE advec_u_up !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for grid point i,j !------------------------------------------------------------------------------! SUBROUTINE advec_u_up_ij( i, j ) 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: 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 DO k = nzb+1, nzt ! !-- x-direction ukomp = u(k,j,i) - u_gtrans IF ( ukomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - ukomp * & ( u(k,j,i) - u(k,j,i-1) ) * ddx ELSE tend(k,j,i) = tend(k,j,i) - ukomp * & ( u(k,j,i+1) - u(k,j,i) ) * ddx ENDIF ! !-- y-direction vkomp = 0.25_wp * ( v(k,j,i) + v(k,j+1,i) + v(k,j,i-1) + v(k,j+1,i-1) & ) - v_gtrans IF ( vkomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - vkomp * & ( u(k,j,i) - u(k,j-1,i) ) * ddy ELSE tend(k,j,i) = tend(k,j,i) - vkomp * & ( u(k,j+1,i) - u(k,j,i) ) * ddy ENDIF ! !-- z-direction wkomp = 0.25_wp * ( w(k,j,i) + w(k-1,j,i) + w(k,j,i-1) + w(k-1,j,i-1) ) IF ( wkomp > 0.0_wp ) THEN tend(k,j,i) = tend(k,j,i) - wkomp * & ( u(k,j,i) - u(k-1,j,i) ) * ddzu(k) ELSE tend(k,j,i) = tend(k,j,i) - wkomp * & ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) ENDIF ENDDO END SUBROUTINE advec_u_up_ij END MODULE advec_u_up_mod