[1873] | 1 | !> @file advec_u_up.f90 |
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[4488] | 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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[4488] | 5 | ! PALM is free software: you can redistribute it and/or modify it under the terms of the GNU General |
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| 6 | ! Public License as published by the Free Software Foundation, either version 3 of the License, or |
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| 7 | ! (at your option) any later version. |
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[1036] | 8 | ! |
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[4488] | 9 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the |
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| 10 | ! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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| 11 | ! Public License for more details. |
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[1036] | 12 | ! |
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[4488] | 13 | ! You should have received a copy of the GNU General Public License along with PALM. If not, see |
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| 14 | ! <http://www.gnu.org/licenses/>. |
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[1036] | 15 | ! |
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[4360] | 16 | ! Copyright 1997-2020 Leibniz Universitaet Hannover |
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[4488] | 17 | !--------------------------------------------------------------------------------------------------! |
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[1036] | 18 | ! |
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[484] | 19 | ! Current revisions: |
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[1] | 20 | ! ----------------- |
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[1354] | 21 | ! |
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[2233] | 22 | ! |
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[1321] | 23 | ! Former revisions: |
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| 24 | ! ----------------- |
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| 25 | ! $Id: advec_u_up.f90 4488 2020-04-03 11:34:29Z oliver.maas $ |
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[4488] | 26 | ! file re-formatted to follow the PALM coding standard |
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| 27 | ! |
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| 28 | ! 4360 2020-01-07 11:25:50Z suehring |
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[4182] | 29 | ! Corrected "Former revisions" section |
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[4488] | 30 | ! |
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[4182] | 31 | ! 3655 2019-01-07 16:51:22Z knoop |
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[3547] | 32 | ! variables documented |
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[1321] | 33 | ! |
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[4182] | 34 | ! Revision 1.1 1997/08/29 08:55:25 raasch |
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| 35 | ! Initial revision |
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| 36 | ! |
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| 37 | ! |
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[1] | 38 | ! Description: |
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| 39 | ! ------------ |
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[1682] | 40 | !> Advection term for the u velocity-component using upstream scheme. |
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| 41 | !> NOTE: vertical advection at k=1 still has wrong grid spacing for w>0! |
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| 42 | !> The same problem occurs for all topography boundaries! |
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[4488] | 43 | !--------------------------------------------------------------------------------------------------! |
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[1682] | 44 | MODULE advec_u_up_mod |
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[1] | 45 | |
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[4488] | 46 | |
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[1] | 47 | PRIVATE |
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| 48 | PUBLIC advec_u_up |
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| 49 | |
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| 50 | INTERFACE advec_u_up |
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| 51 | MODULE PROCEDURE advec_u_up |
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| 52 | MODULE PROCEDURE advec_u_up_ij |
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| 53 | END INTERFACE advec_u_up |
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| 54 | |
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| 55 | CONTAINS |
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| 56 | |
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| 57 | |
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[4488] | 58 | !--------------------------------------------------------------------------------------------------! |
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[1682] | 59 | ! Description: |
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| 60 | ! ------------ |
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| 61 | !> Call for all grid points |
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[4488] | 62 | !--------------------------------------------------------------------------------------------------! |
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| 63 | SUBROUTINE advec_u_up |
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[1] | 64 | |
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[4488] | 65 | USE arrays_3d, & |
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| 66 | ONLY: ddzu, tend, u, v, w |
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[1] | 67 | |
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[4488] | 68 | USE control_parameters, & |
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| 69 | ONLY: u_gtrans, v_gtrans |
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[1320] | 70 | |
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[4488] | 71 | USE grid_variables, & |
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| 72 | ONLY: ddx, ddy |
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[1320] | 73 | |
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[4488] | 74 | USE indices, & |
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| 75 | ONLY: nxlu, nxr, nyn, nys, nzb, nzt |
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[1320] | 76 | |
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[4488] | 77 | USE kinds |
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[1320] | 78 | |
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| 79 | |
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[4488] | 80 | IMPLICIT NONE |
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[1] | 81 | |
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[4488] | 82 | INTEGER(iwp) :: i !< grid index along x-direction |
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| 83 | INTEGER(iwp) :: j !< grid index along y-direction |
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| 84 | INTEGER(iwp) :: k !< grid index along z-direction |
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[1] | 85 | |
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[4488] | 86 | REAL(wp) :: ukomp !< advection velocity along x-direction |
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| 87 | REAL(wp) :: vkomp !< advection velocity along y-direction |
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| 88 | REAL(wp) :: wkomp !< advection velocity along z-direction |
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[1] | 89 | |
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[4488] | 90 | |
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| 91 | DO i = nxlu, nxr |
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| 92 | DO j = nys, nyn |
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| 93 | DO k = nzb+1, nzt |
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[1] | 94 | ! |
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[4488] | 95 | !-- x-direction |
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| 96 | ukomp = u(k,j,i) - u_gtrans |
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| 97 | IF ( ukomp > 0.0_wp ) THEN |
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| 98 | tend(k,j,i) = tend(k,j,i) - ukomp * ( u(k,j,i) - u(k,j,i-1) ) * ddx |
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| 99 | ELSE |
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| 100 | tend(k,j,i) = tend(k,j,i) - ukomp * ( u(k,j,i+1) - u(k,j,i) ) * ddx |
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| 101 | ENDIF |
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[1] | 102 | ! |
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[4488] | 103 | !-- y-direction |
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| 104 | vkomp = 0.25_wp * ( v(k,j,i) + v(k,j+1,i) + v(k,j,i-1) + v(k,j+1,i-1) ) - v_gtrans |
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| 105 | IF ( vkomp > 0.0_wp ) THEN |
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| 106 | tend(k,j,i) = tend(k,j,i) - vkomp * ( u(k,j,i) - u(k,j-1,i) ) * ddy |
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| 107 | ELSE |
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| 108 | tend(k,j,i) = tend(k,j,i) - vkomp * ( u(k,j+1,i) - u(k,j,i) ) * ddy |
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| 109 | ENDIF |
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[1] | 110 | ! |
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[4488] | 111 | !-- z-direction |
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| 112 | wkomp = 0.25_wp * ( w(k,j,i) + w(k-1,j,i) + w(k,j,i-1) + w(k-1,j,i-1) ) |
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| 113 | IF ( wkomp > 0.0_wp ) THEN |
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| 114 | tend(k,j,i) = tend(k,j,i) - wkomp * ( u(k,j,i) - u(k-1,j,i) ) * ddzu(k) |
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| 115 | ELSE |
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| 116 | tend(k,j,i) = tend(k,j,i) - wkomp * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) |
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| 117 | ENDIF |
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[1] | 118 | |
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| 119 | ENDDO |
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| 120 | ENDDO |
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[4488] | 121 | ENDDO |
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[1] | 122 | |
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[4488] | 123 | END SUBROUTINE advec_u_up |
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[1] | 124 | |
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| 125 | |
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[4488] | 126 | !--------------------------------------------------------------------------------------------------! |
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[1682] | 127 | ! Description: |
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| 128 | ! ------------ |
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| 129 | !> Call for grid point i,j |
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[4488] | 130 | !--------------------------------------------------------------------------------------------------! |
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| 131 | SUBROUTINE advec_u_up_ij( i, j ) |
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[1] | 132 | |
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[4488] | 133 | USE arrays_3d, & |
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| 134 | ONLY: ddzu, tend, u, v, w |
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[1] | 135 | |
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[4488] | 136 | USE control_parameters, & |
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| 137 | ONLY: u_gtrans, v_gtrans |
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[1320] | 138 | |
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[4488] | 139 | USE grid_variables, & |
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| 140 | ONLY: ddx, ddy |
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[1320] | 141 | |
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[4488] | 142 | USE indices, & |
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| 143 | ONLY: nzb, nzt |
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[1320] | 144 | |
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[4488] | 145 | USE kinds |
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[1320] | 146 | |
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| 147 | |
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[4488] | 148 | IMPLICIT NONE |
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[1] | 149 | |
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[4488] | 150 | INTEGER(iwp) :: i !< grid index along x-direction |
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| 151 | INTEGER(iwp) :: j !< grid index along y-direction |
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| 152 | INTEGER(iwp) :: k !< grid index along z-direction |
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[1] | 153 | |
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[4488] | 154 | REAL(wp) :: ukomp !< advection velocity along x-direction |
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| 155 | REAL(wp) :: vkomp !< advection velocity along y-direction |
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| 156 | REAL(wp) :: wkomp !< advection velocity along z-direction |
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[1] | 157 | |
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| 158 | |
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[4488] | 159 | DO k = nzb+1, nzt |
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[1] | 160 | ! |
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[4488] | 161 | !-- x-direction |
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| 162 | ukomp = u(k,j,i) - u_gtrans |
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| 163 | IF ( ukomp > 0.0_wp ) THEN |
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| 164 | tend(k,j,i) = tend(k,j,i) - ukomp * ( u(k,j,i) - u(k,j,i-1) ) * ddx |
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| 165 | ELSE |
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| 166 | tend(k,j,i) = tend(k,j,i) - ukomp * ( u(k,j,i+1) - u(k,j,i) ) * ddx |
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| 167 | ENDIF |
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[1] | 168 | ! |
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[4488] | 169 | !-- y-direction |
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| 170 | vkomp = 0.25_wp * ( v(k,j,i) + v(k,j+1,i) + v(k,j,i-1) + v(k,j+1,i-1) ) - v_gtrans |
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| 171 | IF ( vkomp > 0.0_wp ) THEN |
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| 172 | tend(k,j,i) = tend(k,j,i) - vkomp * ( u(k,j,i) - u(k,j-1,i) ) * ddy |
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| 173 | ELSE |
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| 174 | tend(k,j,i) = tend(k,j,i) - vkomp * ( u(k,j+1,i) - u(k,j,i) ) * ddy |
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| 175 | ENDIF |
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[1] | 176 | ! |
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[4488] | 177 | !-- z-direction |
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| 178 | wkomp = 0.25_wp * ( w(k,j,i) + w(k-1,j,i) + w(k,j,i-1) + w(k-1,j,i-1) ) |
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| 179 | IF ( wkomp > 0.0_wp ) THEN |
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| 180 | tend(k,j,i) = tend(k,j,i) - wkomp * ( u(k,j,i) - u(k-1,j,i) ) * ddzu(k) |
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| 181 | ELSE |
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| 182 | tend(k,j,i) = tend(k,j,i) - wkomp * ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) |
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| 183 | ENDIF |
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[1] | 184 | |
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[4488] | 185 | ENDDO |
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[1] | 186 | |
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[4488] | 187 | END SUBROUTINE advec_u_up_ij |
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[1] | 188 | |
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| 189 | END MODULE advec_u_up_mod |
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