!> @file advec_u_pw.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_pw.f90 4182 2019-08-22 15:20:23Z banzhafs $ ! Corrected "Former revisions" section ! ! 3655 2019-01-07 16:51:22Z knoop ! variables documented ! ! Revision 1.1 1997/08/11 06:09:21 raasch ! Initial revision ! ! ! Description: ! ------------ !> Advection term for u velocity-component using Piacsek and Williams. !> Vertical advection at the first grid point above the surface is done with !> normal centred differences, because otherwise no information from the surface !> would be communicated upwards due to w=0 at K=nzb. !------------------------------------------------------------------------------! MODULE advec_u_pw_mod PRIVATE PUBLIC advec_u_pw INTERFACE advec_u_pw MODULE PROCEDURE advec_u_pw MODULE PROCEDURE advec_u_pw_ij END INTERFACE advec_u_pw CONTAINS !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for all grid points !------------------------------------------------------------------------------! SUBROUTINE advec_u_pw 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: 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) :: gu !< Galilei-transformation velocity along x REAL(wp) :: gv !< Galilei-transformation velocity along y gu = 2.0_wp * u_gtrans gv = 2.0_wp * v_gtrans DO i = nxlu, nxr DO j = nys, nyn DO k = nzb+1, nzt tend(k,j,i) = tend(k,j,i) - 0.25_wp * ( & ( u(k,j,i+1) * ( u(k,j,i+1) + u(k,j,i) - gu ) & - u(k,j,i-1) * ( u(k,j,i) + u(k,j,i-1) - gu ) ) * ddx & + ( u(k,j+1,i) * ( v(k,j+1,i) + v(k,j+1,i-1) - gv ) & - u(k,j-1,i) * ( v(k,j,i) + v(k,j,i-1) - gv ) ) * ddy & + ( u(k+1,j,i) * ( w(k,j,i) + w(k,j,i-1) ) & - u(k-1,j,i) * ( w(k-1,j,i) + w(k-1,j,i-1) ) ) & * ddzw(k) & ) ENDDO ENDDO ENDDO END SUBROUTINE advec_u_pw !------------------------------------------------------------------------------! ! Description: ! ------------ !> Call for grid point i,j !------------------------------------------------------------------------------! SUBROUTINE advec_u_pw_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) :: gu !< Galilei-transformation velocity along x REAL(wp) :: gv !< Galilei-transformation velocity along y gu = 2.0_wp * u_gtrans gv = 2.0_wp * v_gtrans DO k = nzb+1, nzt tend(k,j,i) = tend(k,j,i) - 0.25_wp * ( & ( u(k,j,i+1) * ( u(k,j,i+1) + u(k,j,i) - gu ) & - u(k,j,i-1) * ( u(k,j,i) + u(k,j,i-1) - gu ) ) * ddx & + ( u(k,j+1,i) * ( v(k,j+1,i) + v(k,j+1,i-1) - gv ) & - u(k,j-1,i) * ( v(k,j,i) + v(k,j,i-1) - gv ) ) * ddy & + ( u(k+1,j,i) * ( w(k,j,i) + w(k,j,i-1) ) & - u(k-1,j,i) * ( w(k-1,j,i) + w(k-1,j,i-1) ) ) & * ddzw(k) & ) ENDDO END SUBROUTINE advec_u_pw_ij END MODULE advec_u_pw_mod