[1873] | 1 | !> @file advec_u_pw.f90 |
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[2000] | 2 | !------------------------------------------------------------------------------! |
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[2696] | 3 | ! This file is part of the PALM model system. |
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[1036] | 4 | ! |
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[2000] | 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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[1036] | 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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[3655] | 17 | ! Copyright 1997-2019 Leibniz Universitaet Hannover |
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[2000] | 18 | !------------------------------------------------------------------------------! |
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[1036] | 19 | ! |
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[484] | 20 | ! Current revisions: |
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[1] | 21 | ! ----------------- |
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[1354] | 22 | ! |
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[2233] | 23 | ! |
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[1321] | 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: advec_u_pw.f90 4180 2019-08-21 14:37:54Z scharf $ |
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[3547] | 27 | ! variables documented |
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| 28 | ! |
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[1321] | 29 | ! |
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[1] | 30 | ! Description: |
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| 31 | ! ------------ |
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[1682] | 32 | !> Advection term for u velocity-component using Piacsek and Williams. |
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| 33 | !> Vertical advection at the first grid point above the surface is done with |
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| 34 | !> normal centred differences, because otherwise no information from the surface |
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| 35 | !> would be communicated upwards due to w=0 at K=nzb. |
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[1] | 36 | !------------------------------------------------------------------------------! |
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[1682] | 37 | MODULE advec_u_pw_mod |
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| 38 | |
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[1] | 39 | |
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| 40 | PRIVATE |
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| 41 | PUBLIC advec_u_pw |
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| 42 | |
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| 43 | INTERFACE advec_u_pw |
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| 44 | MODULE PROCEDURE advec_u_pw |
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| 45 | MODULE PROCEDURE advec_u_pw_ij |
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| 46 | END INTERFACE advec_u_pw |
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| 47 | |
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| 48 | CONTAINS |
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| 49 | |
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| 50 | |
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| 51 | !------------------------------------------------------------------------------! |
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[1682] | 52 | ! Description: |
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| 53 | ! ------------ |
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| 54 | !> Call for all grid points |
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[1] | 55 | !------------------------------------------------------------------------------! |
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| 56 | SUBROUTINE advec_u_pw |
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| 57 | |
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[1320] | 58 | USE arrays_3d, & |
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| 59 | ONLY: ddzw, tend, u, v, w |
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[1] | 60 | |
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[1320] | 61 | USE control_parameters, & |
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| 62 | ONLY: u_gtrans, v_gtrans |
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| 63 | |
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| 64 | USE grid_variables, & |
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| 65 | ONLY: ddx, ddy |
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| 66 | |
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| 67 | USE indices, & |
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[3538] | 68 | ONLY: nxlu, nxr, nyn, nys, nzb, nzt |
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[1320] | 69 | |
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| 70 | USE kinds |
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| 71 | |
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| 72 | |
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[1] | 73 | IMPLICIT NONE |
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| 74 | |
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[3547] | 75 | INTEGER(iwp) :: i !< grid index along x-direction |
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| 76 | INTEGER(iwp) :: j !< grid index along y-direction |
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| 77 | INTEGER(iwp) :: k !< grid index along z-direction |
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[1320] | 78 | |
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[3547] | 79 | REAL(wp) :: gu !< Galilei-transformation velocity along x |
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| 80 | REAL(wp) :: gv !< Galilei-transformation velocity along y |
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[1] | 81 | |
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[1353] | 82 | gu = 2.0_wp * u_gtrans |
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| 83 | gv = 2.0_wp * v_gtrans |
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[106] | 84 | DO i = nxlu, nxr |
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[1] | 85 | DO j = nys, nyn |
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[2232] | 86 | DO k = nzb+1, nzt |
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[1353] | 87 | tend(k,j,i) = tend(k,j,i) - 0.25_wp * ( & |
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[1] | 88 | ( u(k,j,i+1) * ( u(k,j,i+1) + u(k,j,i) - gu ) & |
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| 89 | - u(k,j,i-1) * ( u(k,j,i) + u(k,j,i-1) - gu ) ) * ddx & |
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| 90 | + ( u(k,j+1,i) * ( v(k,j+1,i) + v(k,j+1,i-1) - gv ) & |
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| 91 | - u(k,j-1,i) * ( v(k,j,i) + v(k,j,i-1) - gv ) ) * ddy & |
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| 92 | + ( u(k+1,j,i) * ( w(k,j,i) + w(k,j,i-1) ) & |
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| 93 | - u(k-1,j,i) * ( w(k-1,j,i) + w(k-1,j,i-1) ) ) & |
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| 94 | * ddzw(k) & |
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[3538] | 95 | ) |
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[1] | 96 | ENDDO |
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| 97 | ENDDO |
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| 98 | ENDDO |
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| 99 | |
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| 100 | END SUBROUTINE advec_u_pw |
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| 101 | |
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| 102 | |
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| 103 | !------------------------------------------------------------------------------! |
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[1682] | 104 | ! Description: |
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| 105 | ! ------------ |
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| 106 | !> Call for grid point i,j |
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[1] | 107 | !------------------------------------------------------------------------------! |
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| 108 | SUBROUTINE advec_u_pw_ij( i, j ) |
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| 109 | |
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[1320] | 110 | USE arrays_3d, & |
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| 111 | ONLY: ddzw, tend, u, v, w |
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[1] | 112 | |
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[1320] | 113 | USE control_parameters, & |
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| 114 | ONLY: u_gtrans, v_gtrans |
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| 115 | |
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| 116 | USE grid_variables, & |
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| 117 | ONLY: ddx, ddy |
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| 118 | |
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| 119 | USE indices, & |
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[3538] | 120 | ONLY: nzb, nzt |
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[1320] | 121 | |
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| 122 | USE kinds |
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| 123 | |
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| 124 | |
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[1] | 125 | IMPLICIT NONE |
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| 126 | |
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[3547] | 127 | INTEGER(iwp) :: i !< grid index along x-direction |
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| 128 | INTEGER(iwp) :: j !< grid index along y-direction |
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| 129 | INTEGER(iwp) :: k !< grid index along z-direction |
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[1320] | 130 | |
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[3547] | 131 | REAL(wp) :: gu !< Galilei-transformation velocity along x |
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| 132 | REAL(wp) :: gv !< Galilei-transformation velocity along y |
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[1] | 133 | |
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[1353] | 134 | gu = 2.0_wp * u_gtrans |
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| 135 | gv = 2.0_wp * v_gtrans |
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[2232] | 136 | DO k = nzb+1, nzt |
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[1353] | 137 | tend(k,j,i) = tend(k,j,i) - 0.25_wp * ( & |
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[1] | 138 | ( u(k,j,i+1) * ( u(k,j,i+1) + u(k,j,i) - gu ) & |
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| 139 | - u(k,j,i-1) * ( u(k,j,i) + u(k,j,i-1) - gu ) ) * ddx & |
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| 140 | + ( u(k,j+1,i) * ( v(k,j+1,i) + v(k,j+1,i-1) - gv ) & |
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| 141 | - u(k,j-1,i) * ( v(k,j,i) + v(k,j,i-1) - gv ) ) * ddy & |
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| 142 | + ( u(k+1,j,i) * ( w(k,j,i) + w(k,j,i-1) ) & |
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| 143 | - u(k-1,j,i) * ( w(k-1,j,i) + w(k-1,j,i-1) ) ) & |
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| 144 | * ddzw(k) & |
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[3538] | 145 | ) |
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[1] | 146 | ENDDO |
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| 147 | |
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| 148 | END SUBROUTINE advec_u_pw_ij |
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| 149 | |
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| 150 | END MODULE advec_u_pw_mod |
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