| 1 | !> @file advec_w_up.f90 |
|---|
| 2 | !------------------------------------------------------------------------------! |
|---|
| 3 | ! This file is part of the PALM model system. |
|---|
| 4 | ! |
|---|
| 5 | ! PALM is free software: you can redistribute it and/or modify it under the |
|---|
| 6 | ! terms of the GNU General Public License as published by the Free Software |
|---|
| 7 | ! Foundation, either version 3 of the License, or (at your option) any later |
|---|
| 8 | ! version. |
|---|
| 9 | ! |
|---|
| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
|---|
| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
|---|
| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
|---|
| 13 | ! |
|---|
| 14 | ! You should have received a copy of the GNU General Public License along with |
|---|
| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
|---|
| 16 | ! |
|---|
| 17 | ! Copyright 1997-2019 Leibniz Universitaet Hannover |
|---|
| 18 | !------------------------------------------------------------------------------! |
|---|
| 19 | ! |
|---|
| 20 | ! Current revisions: |
|---|
| 21 | ! ----------------- |
|---|
| 22 | ! |
|---|
| 23 | ! |
|---|
| 24 | ! Former revisions: |
|---|
| 25 | ! ----------------- |
|---|
| 26 | ! $Id: advec_w_up.f90 4182 2019-08-22 15:20:23Z knoop $ |
|---|
| 27 | ! Corrected "Former revisions" section |
|---|
| 28 | ! |
|---|
| 29 | ! 3655 2019-01-07 16:51:22Z knoop |
|---|
| 30 | ! variables documented |
|---|
| 31 | ! |
|---|
| 32 | ! Revision 1.1 1997/08/29 08:56:33 raasch |
|---|
| 33 | ! Initial revision |
|---|
| 34 | ! |
|---|
| 35 | ! |
|---|
| 36 | ! Description: |
|---|
| 37 | ! ------------ |
|---|
| 38 | !> Advection term for the w velocity-component using upstream scheme. |
|---|
| 39 | !> NOTE: vertical advection at k=1 still has wrong grid spacing for w>0 |
|---|
| 40 | !> The same problem occurs for all topography boundaries! |
|---|
| 41 | !------------------------------------------------------------------------------! |
|---|
| 42 | MODULE advec_w_up_mod |
|---|
| 43 | |
|---|
| 44 | |
|---|
| 45 | PRIVATE |
|---|
| 46 | PUBLIC advec_w_up |
|---|
| 47 | |
|---|
| 48 | INTERFACE advec_w_up |
|---|
| 49 | MODULE PROCEDURE advec_w_up |
|---|
| 50 | MODULE PROCEDURE advec_w_up_ij |
|---|
| 51 | END INTERFACE advec_w_up |
|---|
| 52 | |
|---|
| 53 | CONTAINS |
|---|
| 54 | |
|---|
| 55 | |
|---|
| 56 | !------------------------------------------------------------------------------! |
|---|
| 57 | ! Description: |
|---|
| 58 | ! ------------ |
|---|
| 59 | !> Call for all grid points |
|---|
| 60 | !------------------------------------------------------------------------------! |
|---|
| 61 | SUBROUTINE advec_w_up |
|---|
| 62 | |
|---|
| 63 | USE arrays_3d, & |
|---|
| 64 | ONLY: ddzw, tend, u, v, w |
|---|
| 65 | |
|---|
| 66 | USE control_parameters, & |
|---|
| 67 | ONLY: u_gtrans, v_gtrans |
|---|
| 68 | |
|---|
| 69 | USE grid_variables, & |
|---|
| 70 | ONLY: ddx, ddy |
|---|
| 71 | |
|---|
| 72 | USE indices, & |
|---|
| 73 | ONLY: nxl, nxr, nyn, nys, nzb, nzt |
|---|
| 74 | |
|---|
| 75 | USE kinds |
|---|
| 76 | |
|---|
| 77 | |
|---|
| 78 | IMPLICIT NONE |
|---|
| 79 | |
|---|
| 80 | INTEGER(iwp) :: i !< grid index along x-direction |
|---|
| 81 | INTEGER(iwp) :: j !< grid index along y-direction |
|---|
| 82 | INTEGER(iwp) :: k !< grid index along z-direction |
|---|
| 83 | |
|---|
| 84 | REAL(wp) :: ukomp !< advection velocity along x-direction |
|---|
| 85 | REAL(wp) :: vkomp !< advection velocity along y-direction |
|---|
| 86 | |
|---|
| 87 | |
|---|
| 88 | DO i = nxl, nxr |
|---|
| 89 | DO j = nys, nyn |
|---|
| 90 | DO k = nzb+1, nzt-1 |
|---|
| 91 | ! |
|---|
| 92 | !-- x-direction |
|---|
| 93 | ukomp = 0.25_wp * ( u(k,j,i) + u(k,j,i+1) + & |
|---|
| 94 | u(k+1,j,i) + u(k+1,j,i+1) ) - u_gtrans |
|---|
| 95 | IF ( ukomp > 0.0_wp ) THEN |
|---|
| 96 | tend(k,j,i) = tend(k,j,i) - ukomp * & |
|---|
| 97 | ( w(k,j,i) - w(k,j,i-1) ) * ddx |
|---|
| 98 | ELSE |
|---|
| 99 | tend(k,j,i) = tend(k,j,i) - ukomp * & |
|---|
| 100 | ( w(k,j,i+1) - w(k,j,i) ) * ddx |
|---|
| 101 | ENDIF |
|---|
| 102 | ! |
|---|
| 103 | !-- y-direction |
|---|
| 104 | vkomp = 0.25_wp * ( v(k,j,i) + v(k,j+1,i) + & |
|---|
| 105 | v(k+1,j,i) + v(k+1,j+1,i) ) - v_gtrans |
|---|
| 106 | IF ( vkomp > 0.0_wp ) THEN |
|---|
| 107 | tend(k,j,i) = tend(k,j,i) - vkomp * & |
|---|
| 108 | ( w(k,j,i) - w(k,j-1,i) ) * ddy |
|---|
| 109 | ELSE |
|---|
| 110 | tend(k,j,i) = tend(k,j,i) - vkomp * & |
|---|
| 111 | ( w(k,j+1,i) - w(k,j,i) ) * ddy |
|---|
| 112 | ENDIF |
|---|
| 113 | ! |
|---|
| 114 | !-- z-direction |
|---|
| 115 | IF ( w(k,j,i) > 0.0_wp ) THEN |
|---|
| 116 | tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & |
|---|
| 117 | ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) |
|---|
| 118 | ELSE |
|---|
| 119 | tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & |
|---|
| 120 | ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) |
|---|
| 121 | ENDIF |
|---|
| 122 | |
|---|
| 123 | ENDDO |
|---|
| 124 | ENDDO |
|---|
| 125 | ENDDO |
|---|
| 126 | |
|---|
| 127 | END SUBROUTINE advec_w_up |
|---|
| 128 | |
|---|
| 129 | |
|---|
| 130 | !------------------------------------------------------------------------------! |
|---|
| 131 | ! Description: |
|---|
| 132 | ! ------------ |
|---|
| 133 | !> Call for grid point i,j |
|---|
| 134 | !------------------------------------------------------------------------------! |
|---|
| 135 | SUBROUTINE advec_w_up_ij( i, j ) |
|---|
| 136 | |
|---|
| 137 | USE arrays_3d, & |
|---|
| 138 | ONLY: ddzw, tend, u, v, w |
|---|
| 139 | |
|---|
| 140 | USE control_parameters, & |
|---|
| 141 | ONLY: u_gtrans, v_gtrans |
|---|
| 142 | |
|---|
| 143 | USE grid_variables, & |
|---|
| 144 | ONLY: ddx, ddy |
|---|
| 145 | |
|---|
| 146 | USE indices, & |
|---|
| 147 | ONLY: nzb, nzt |
|---|
| 148 | |
|---|
| 149 | USE kinds |
|---|
| 150 | |
|---|
| 151 | |
|---|
| 152 | IMPLICIT NONE |
|---|
| 153 | |
|---|
| 154 | INTEGER(iwp) :: i !< grid index along x-direction |
|---|
| 155 | INTEGER(iwp) :: j !< grid index along y-direction |
|---|
| 156 | INTEGER(iwp) :: k !< grid index along z-direction |
|---|
| 157 | |
|---|
| 158 | REAL(wp) :: ukomp !< advection velocity along x-direction |
|---|
| 159 | REAL(wp) :: vkomp !< advection velocity along y-direction |
|---|
| 160 | |
|---|
| 161 | |
|---|
| 162 | DO k = nzb+1, nzt-1 |
|---|
| 163 | ! |
|---|
| 164 | !-- x-direction |
|---|
| 165 | ukomp = 0.25_wp * ( u(k,j,i) + u(k,j,i+1) + u(k+1,j,i) + u(k+1,j,i+1) & |
|---|
| 166 | ) - u_gtrans |
|---|
| 167 | IF ( ukomp > 0.0_wp ) THEN |
|---|
| 168 | tend(k,j,i) = tend(k,j,i) - ukomp * & |
|---|
| 169 | ( w(k,j,i) - w(k,j,i-1) ) * ddx |
|---|
| 170 | ELSE |
|---|
| 171 | tend(k,j,i) = tend(k,j,i) - ukomp * & |
|---|
| 172 | ( w(k,j,i+1) - w(k,j,i) ) * ddx |
|---|
| 173 | ENDIF |
|---|
| 174 | ! |
|---|
| 175 | !-- y-direction |
|---|
| 176 | vkomp = 0.25_wp * ( v(k,j,i) + v(k,j+1,i) + v(k+1,j,i) + v(k+1,j+1,i) & |
|---|
| 177 | ) - v_gtrans |
|---|
| 178 | IF ( vkomp > 0.0_wp ) THEN |
|---|
| 179 | tend(k,j,i) = tend(k,j,i) - vkomp * & |
|---|
| 180 | ( w(k,j,i) - w(k,j-1,i) ) * ddy |
|---|
| 181 | ELSE |
|---|
| 182 | tend(k,j,i) = tend(k,j,i) - vkomp * & |
|---|
| 183 | ( w(k,j+1,i) - w(k,j,i) ) * ddy |
|---|
| 184 | ENDIF |
|---|
| 185 | ! |
|---|
| 186 | !-- z-direction |
|---|
| 187 | IF ( w(k,j,i) > 0.0_wp ) THEN |
|---|
| 188 | tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & |
|---|
| 189 | ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) |
|---|
| 190 | ELSE |
|---|
| 191 | tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & |
|---|
| 192 | ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) |
|---|
| 193 | ENDIF |
|---|
| 194 | |
|---|
| 195 | ENDDO |
|---|
| 196 | |
|---|
| 197 | END SUBROUTINE advec_w_up_ij |
|---|
| 198 | |
|---|
| 199 | END MODULE advec_w_up_mod |
|---|
