| 1 | MODULE advec_s_pw_mod |
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| 2 | |
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| 3 | !--------------------------------------------------------------------------------! |
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| 4 | ! This file is part of PALM. |
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| 5 | ! |
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| 6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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| 7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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| 8 | ! either version 3 of the License, or (at your option) any later 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 1997-2014 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_s_pw.f90 1321 2014-03-20 09:40:40Z raasch $ |
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| 27 | ! |
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| 28 | ! 1320 2014-03-20 08:40:49Z raasch |
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| 29 | ! ONLY-attribute added to USE-statements, |
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| 30 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 31 | ! kinds are defined in new module kinds, |
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| 32 | ! revision history before 2012 removed, |
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| 33 | ! comment fields (!:) to be used for variable explanations added to |
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| 34 | ! all variable declaration statements |
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| 35 | ! |
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| 36 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 37 | ! code put under GPL (PALM 3.9) |
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| 38 | ! |
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| 39 | ! 1010 2012-09-20 07:59:54Z raasch |
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| 40 | ! cpp switch __nopointer added for pointer free version |
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| 41 | ! |
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| 42 | ! Revision 1.1 1997/08/29 08:54:20 raasch |
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| 43 | ! Initial revision |
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| 44 | ! |
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| 45 | ! |
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| 46 | ! Description: |
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| 47 | ! ------------ |
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| 48 | ! Advection term for scalar variables using the Piacsek and Williams scheme |
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| 49 | ! (form C3). Contrary to PW itself, for reasons of accuracy their scheme is |
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| 50 | ! slightly modified as follows: the values of those scalars that are used for |
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| 51 | ! the computation of the flux divergence are reduced by the value of the |
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| 52 | ! relevant scalar at the location where the difference is computed (sk(k,j,i)). |
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| 53 | ! NOTE: at the first grid point above the surface computation still takes place! |
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| 54 | !------------------------------------------------------------------------------! |
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| 55 | |
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| 56 | PRIVATE |
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| 57 | PUBLIC advec_s_pw |
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| 58 | |
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| 59 | INTERFACE advec_s_pw |
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| 60 | MODULE PROCEDURE advec_s_pw |
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| 61 | MODULE PROCEDURE advec_s_pw_ij |
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| 62 | END INTERFACE |
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| 63 | |
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| 64 | CONTAINS |
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| 65 | |
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| 66 | |
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| 67 | !------------------------------------------------------------------------------! |
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| 68 | ! Call for all grid points |
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| 69 | !------------------------------------------------------------------------------! |
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| 70 | SUBROUTINE advec_s_pw( sk ) |
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| 71 | |
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| 72 | USE arrays_3d, & |
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| 73 | ONLY: dd2zu, tend, u, v, w |
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| 74 | |
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| 75 | USE control_parameters, & |
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| 76 | ONLY: u_gtrans, v_gtrans |
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| 77 | |
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| 78 | USE grid_variables, & |
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| 79 | ONLY: ddx, ddy |
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| 80 | |
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| 81 | USE indices, & |
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| 82 | ONLY: nxl, nxr, nyn, nys, nzb_s_inner, nzt |
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| 83 | |
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| 84 | USE kinds |
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| 85 | |
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| 86 | |
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| 87 | IMPLICIT NONE |
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| 88 | |
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| 89 | INTEGER(iwp) :: i !: |
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| 90 | INTEGER(iwp) :: j !: |
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| 91 | INTEGER(iwp) :: k !: |
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| 92 | |
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| 93 | #if defined( __nopointer ) |
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| 94 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: sk !: |
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| 95 | #else |
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| 96 | REAL(wp), DIMENSION(:,:,:), POINTER :: sk |
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| 97 | #endif |
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| 98 | |
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| 99 | |
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| 100 | DO i = nxl, nxr |
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| 101 | DO j = nys, nyn |
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| 102 | DO k = nzb_s_inner(j,i)+1, nzt |
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| 103 | tend(k,j,i) = tend(k,j,i) & |
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| 104 | -0.5 * ( ( u(k,j,i+1) - u_gtrans ) * ( sk(k,j,i+1) - sk(k,j,i) ) & |
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| 105 | - ( u(k,j,i) - u_gtrans ) * ( sk(k,j,i-1) - sk(k,j,i) ) & |
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| 106 | ) * ddx & |
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| 107 | -0.5 * ( ( v(k,j+1,i) - v_gtrans ) * ( sk(k,j+1,i) - sk(k,j,i) ) & |
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| 108 | - ( v(k,j,i) - v_gtrans ) * ( sk(k,j-1,i) - sk(k,j,i) ) & |
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| 109 | ) * ddy & |
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| 110 | - ( w(k,j,i) * ( sk(k+1,j,i) - sk(k,j,i) ) & |
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| 111 | - w(k-1,j,i) * ( sk(k-1,j,i) - sk(k,j,i) ) & |
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| 112 | ) * dd2zu(k) |
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| 113 | ENDDO |
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| 114 | ENDDO |
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| 115 | ENDDO |
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| 116 | |
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| 117 | END SUBROUTINE advec_s_pw |
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| 118 | |
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| 119 | |
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| 120 | !------------------------------------------------------------------------------! |
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| 121 | ! Call for grid point i,j |
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| 122 | !------------------------------------------------------------------------------! |
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| 123 | SUBROUTINE advec_s_pw_ij( i, j, sk ) |
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| 124 | |
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| 125 | USE arrays_3d, & |
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| 126 | ONLY: dd2zu, tend, u, v, w |
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| 127 | |
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| 128 | USE control_parameters, & |
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| 129 | ONLY: u_gtrans, v_gtrans |
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| 130 | |
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| 131 | USE grid_variables, & |
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| 132 | ONLY: ddx, ddy |
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| 133 | |
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| 134 | USE indices, & |
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| 135 | ONLY: nzb_s_inner, nzt |
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| 136 | |
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| 137 | USE kinds |
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| 138 | |
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| 139 | |
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| 140 | IMPLICIT NONE |
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| 141 | |
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| 142 | INTEGER(iwp) :: i !: |
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| 143 | INTEGER(iwp) :: j !: |
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| 144 | INTEGER(iwp) :: k !: |
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| 145 | |
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| 146 | #if defined( __nopointer ) |
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| 147 | REAL(wp), DIMENSION(nzb:nzt+1,nysg:nyng,nxlg:nxrg) :: sk !: |
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| 148 | #else |
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| 149 | REAL(wp), DIMENSION(:,:,:), POINTER :: sk |
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| 150 | #endif |
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| 151 | |
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| 152 | |
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| 153 | DO k = nzb_s_inner(j,i)+1, nzt |
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| 154 | tend(k,j,i) = tend(k,j,i) & |
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| 155 | -0.5 * ( ( u(k,j,i+1) - u_gtrans ) * ( sk(k,j,i+1) - sk(k,j,i) ) & |
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| 156 | - ( u(k,j,i) - u_gtrans ) * ( sk(k,j,i-1) - sk(k,j,i) ) & |
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| 157 | ) * ddx & |
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| 158 | -0.5 * ( ( v(k,j+1,i) - v_gtrans ) * ( sk(k,j+1,i) - sk(k,j,i) ) & |
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| 159 | - ( v(k,j,i) - v_gtrans ) * ( sk(k,j-1,i) - sk(k,j,i) ) & |
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| 160 | ) * ddy & |
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| 161 | - ( w(k,j,i) * ( sk(k+1,j,i) - sk(k,j,i) ) & |
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| 162 | - w(k-1,j,i) * ( sk(k-1,j,i) - sk(k,j,i) ) & |
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| 163 | ) * dd2zu(k) |
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| 164 | ENDDO |
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| 165 | |
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| 166 | END SUBROUTINE advec_s_pw_ij |
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| 167 | |
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| 168 | END MODULE advec_s_pw_mod |
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