| 1 | !> @file advec_u_pw.f90 |
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| 2 | !------------------------------------------------------------------------------! |
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| 3 | ! This file is part of the PALM model system. |
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| 4 | ! |
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| 5 | ! PALM is free software: you can redistribute it and/or modify it under the |
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| 6 | ! terms of the GNU General Public License as published by the Free Software |
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| 7 | ! Foundation, either version 3 of the License, or (at your option) any later |
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| 8 | ! version. |
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| 9 | ! |
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| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 13 | ! |
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| 14 | ! You should have received a copy of the GNU General Public License along with |
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| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | ! |
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| 17 | ! Copyright 1997-2017 Leibniz Universitaet Hannover |
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| 18 | !------------------------------------------------------------------------------! |
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| 19 | ! |
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| 20 | ! Current revisions: |
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| 21 | ! ----------------- |
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| 22 | ! |
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| 23 | ! |
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| 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: advec_u_pw.f90 2696 2017-12-14 17:12:51Z suehring $ |
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| 27 | ! |
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| 28 | ! 2232 2017-05-30 17:47:52Z suehring |
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| 29 | ! topography representation via flags |
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| 30 | ! |
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| 31 | ! 2000 2016-08-20 18:09:15Z knoop |
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| 32 | ! Forced header and separation lines into 80 columns |
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| 33 | ! |
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| 34 | ! 1873 2016-04-18 14:50:06Z maronga |
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| 35 | ! Module renamed (removed _mod) |
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| 36 | ! |
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| 37 | ! |
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| 38 | ! 1850 2016-04-08 13:29:27Z maronga |
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| 39 | ! Module renamed |
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| 40 | ! |
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| 41 | ! |
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| 42 | ! 1682 2015-10-07 23:56:08Z knoop |
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| 43 | ! Code annotations made doxygen readable |
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| 44 | ! |
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| 45 | ! 1353 2014-04-08 15:21:23Z heinze |
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| 46 | ! REAL constants provided with KIND-attribute |
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| 47 | ! |
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| 48 | ! 1320 2014-03-20 08:40:49Z raasch |
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| 49 | ! ONLY-attribute added to USE-statements, |
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| 50 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 51 | ! kinds are defined in new module kinds, |
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| 52 | ! revision history before 2012 removed, |
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| 53 | ! comment fields (!:) to be used for variable explanations added to |
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| 54 | ! all variable declaration statements |
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| 55 | ! |
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| 56 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 57 | ! code put under GPL (PALM 3.9) |
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| 58 | ! |
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| 59 | ! Revision 1.1 1997/08/11 06:09:21 raasch |
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| 60 | ! Initial revision |
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| 61 | ! |
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| 62 | ! |
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| 63 | ! Description: |
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| 64 | ! ------------ |
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| 65 | !> Advection term for u velocity-component using Piacsek and Williams. |
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| 66 | !> Vertical advection at the first grid point above the surface is done with |
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| 67 | !> normal centred differences, because otherwise no information from the surface |
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| 68 | !> would be communicated upwards due to w=0 at K=nzb. |
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| 69 | !------------------------------------------------------------------------------! |
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| 70 | MODULE advec_u_pw_mod |
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| 71 | |
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| 72 | |
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| 73 | PRIVATE |
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| 74 | PUBLIC advec_u_pw |
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| 75 | |
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| 76 | INTERFACE advec_u_pw |
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| 77 | MODULE PROCEDURE advec_u_pw |
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| 78 | MODULE PROCEDURE advec_u_pw_ij |
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| 79 | END INTERFACE advec_u_pw |
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| 80 | |
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| 81 | CONTAINS |
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| 82 | |
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| 83 | |
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| 84 | !------------------------------------------------------------------------------! |
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| 85 | ! Description: |
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| 86 | ! ------------ |
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| 87 | !> Call for all grid points |
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| 88 | !------------------------------------------------------------------------------! |
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| 89 | SUBROUTINE advec_u_pw |
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| 90 | |
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| 91 | USE arrays_3d, & |
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| 92 | ONLY: ddzw, tend, u, v, w |
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| 93 | |
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| 94 | USE control_parameters, & |
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| 95 | ONLY: u_gtrans, v_gtrans |
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| 96 | |
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| 97 | USE grid_variables, & |
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| 98 | ONLY: ddx, ddy |
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| 99 | |
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| 100 | USE indices, & |
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| 101 | ONLY: nxlu, nxr, nyn, nys, nzb, nzt, wall_flags_0 |
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| 102 | |
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| 103 | USE kinds |
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| 104 | |
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| 105 | |
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| 106 | IMPLICIT NONE |
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| 107 | |
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| 108 | INTEGER(iwp) :: i !< |
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| 109 | INTEGER(iwp) :: j !< |
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| 110 | INTEGER(iwp) :: k !< |
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| 111 | |
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| 112 | REAL(wp) :: gu !< |
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| 113 | REAL(wp) :: gv !< |
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| 114 | |
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| 115 | gu = 2.0_wp * u_gtrans |
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| 116 | gv = 2.0_wp * v_gtrans |
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| 117 | DO i = nxlu, nxr |
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| 118 | DO j = nys, nyn |
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| 119 | DO k = nzb+1, nzt |
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| 120 | tend(k,j,i) = tend(k,j,i) - 0.25_wp * ( & |
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| 121 | ( u(k,j,i+1) * ( u(k,j,i+1) + u(k,j,i) - gu ) & |
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| 122 | - u(k,j,i-1) * ( u(k,j,i) + u(k,j,i-1) - gu ) ) * ddx & |
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| 123 | + ( u(k,j+1,i) * ( v(k,j+1,i) + v(k,j+1,i-1) - gv ) & |
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| 124 | - u(k,j-1,i) * ( v(k,j,i) + v(k,j,i-1) - gv ) ) * ddy & |
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| 125 | + ( u(k+1,j,i) * ( w(k,j,i) + w(k,j,i-1) ) & |
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| 126 | - u(k-1,j,i) * ( w(k-1,j,i) + w(k-1,j,i-1) ) ) & |
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| 127 | * ddzw(k) & |
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| 128 | ) & |
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| 129 | * MERGE( 1.0_wp, 0.0_wp, & |
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| 130 | BTEST( wall_flags_0(k,j,i), 1 ) ) |
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| 131 | ENDDO |
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| 132 | ENDDO |
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| 133 | ENDDO |
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| 134 | |
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| 135 | END SUBROUTINE advec_u_pw |
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| 136 | |
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| 137 | |
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| 138 | !------------------------------------------------------------------------------! |
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| 139 | ! Description: |
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| 140 | ! ------------ |
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| 141 | !> Call for grid point i,j |
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| 142 | !------------------------------------------------------------------------------! |
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| 143 | SUBROUTINE advec_u_pw_ij( i, j ) |
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| 144 | |
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| 145 | USE arrays_3d, & |
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| 146 | ONLY: ddzw, tend, u, v, w |
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| 147 | |
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| 148 | USE control_parameters, & |
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| 149 | ONLY: u_gtrans, v_gtrans |
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| 150 | |
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| 151 | USE grid_variables, & |
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| 152 | ONLY: ddx, ddy |
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| 153 | |
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| 154 | USE indices, & |
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| 155 | ONLY: nzb, nzt, wall_flags_0 |
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| 156 | |
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| 157 | USE kinds |
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| 158 | |
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| 159 | |
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| 160 | IMPLICIT NONE |
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| 161 | |
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| 162 | INTEGER(iwp) :: i !< |
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| 163 | INTEGER(iwp) :: j !< |
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| 164 | INTEGER(iwp) :: k !< |
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| 165 | |
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| 166 | REAL(wp) :: gu !< |
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| 167 | REAL(wp) :: gv !< |
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| 168 | |
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| 169 | gu = 2.0_wp * u_gtrans |
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| 170 | gv = 2.0_wp * v_gtrans |
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| 171 | DO k = nzb+1, nzt |
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| 172 | tend(k,j,i) = tend(k,j,i) - 0.25_wp * ( & |
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| 173 | ( u(k,j,i+1) * ( u(k,j,i+1) + u(k,j,i) - gu ) & |
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| 174 | - u(k,j,i-1) * ( u(k,j,i) + u(k,j,i-1) - gu ) ) * ddx & |
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| 175 | + ( u(k,j+1,i) * ( v(k,j+1,i) + v(k,j+1,i-1) - gv ) & |
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| 176 | - u(k,j-1,i) * ( v(k,j,i) + v(k,j,i-1) - gv ) ) * ddy & |
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| 177 | + ( u(k+1,j,i) * ( w(k,j,i) + w(k,j,i-1) ) & |
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| 178 | - u(k-1,j,i) * ( w(k-1,j,i) + w(k-1,j,i-1) ) ) & |
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| 179 | * ddzw(k) & |
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| 180 | ) & |
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| 181 | * MERGE( 1.0_wp, 0.0_wp, & |
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| 182 | BTEST( wall_flags_0(k,j,i), 1 ) ) |
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| 183 | ENDDO |
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| 184 | |
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| 185 | END SUBROUTINE advec_u_pw_ij |
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| 186 | |
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| 187 | END MODULE advec_u_pw_mod |
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