| 1 | MODULE advec_u_up_mod |
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| 2 | |
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| 3 | !------------------------------------------------------------------------------! |
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| 4 | ! Actual revisions: |
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| 5 | ! ----------------- |
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| 6 | ! |
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| 7 | ! |
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| 8 | ! Former revisions: |
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| 9 | ! ----------------- |
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| 10 | ! $Id: advec_u_up.f90 4 2007-02-13 11:33:16Z raasch $ |
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| 11 | ! RCS Log replace by Id keyword, revision history cleaned up |
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| 12 | ! |
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| 13 | ! Revision 1.12 2006/02/23 09:45:04 raasch |
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| 14 | ! nzb_2d replaced by nzb_u_inner |
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| 15 | ! |
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| 16 | ! Revision 1.1 1997/08/29 08:55:25 raasch |
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| 17 | ! Initial revision |
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| 18 | ! |
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| 19 | ! |
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| 20 | ! Description: |
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| 21 | ! ------------ |
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| 22 | ! Advection term for the u velocity-component using upstream scheme. |
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| 23 | ! NOTE: vertical advection at k=1 still has wrong grid spacing for w>0! |
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| 24 | ! The same problem occurs for all topography boundaries! |
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| 25 | !------------------------------------------------------------------------------! |
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| 26 | |
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| 27 | PRIVATE |
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| 28 | PUBLIC advec_u_up |
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| 29 | |
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| 30 | INTERFACE advec_u_up |
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| 31 | MODULE PROCEDURE advec_u_up |
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| 32 | MODULE PROCEDURE advec_u_up_ij |
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| 33 | END INTERFACE advec_u_up |
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| 34 | |
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| 35 | CONTAINS |
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| 36 | |
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| 37 | |
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| 38 | !------------------------------------------------------------------------------! |
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| 39 | ! Call for all grid points |
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| 40 | !------------------------------------------------------------------------------! |
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| 41 | SUBROUTINE advec_u_up |
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| 42 | |
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| 43 | USE arrays_3d |
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| 44 | USE control_parameters |
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| 45 | USE grid_variables |
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| 46 | USE indices |
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| 47 | |
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| 48 | IMPLICIT NONE |
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| 49 | |
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| 50 | INTEGER :: i, j, k |
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| 51 | |
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| 52 | REAL :: ukomp, vkomp, wkomp |
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| 53 | |
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| 54 | |
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| 55 | DO i = nxl, nxr+uxrp |
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| 56 | DO j = nys, nyn |
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| 57 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 58 | ! |
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| 59 | !-- x-direction |
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| 60 | ukomp = u(k,j,i) - u_gtrans |
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| 61 | IF ( ukomp > 0.0 ) THEN |
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| 62 | tend(k,j,i) = tend(k,j,i) - ukomp * & |
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| 63 | ( u(k,j,i) - u(k,j,i-1) ) * ddx |
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| 64 | ELSE |
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| 65 | tend(k,j,i) = tend(k,j,i) - ukomp * & |
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| 66 | ( u(k,j,i+1) - u(k,j,i) ) * ddx |
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| 67 | ENDIF |
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| 68 | ! |
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| 69 | !-- y-direction |
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| 70 | vkomp = 0.25 * ( v(k,j,i) + v(k,j+1,i) + & |
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| 71 | v(k,j,i-1) + v(k,j+1,i-1) ) - v_gtrans |
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| 72 | IF ( vkomp > 0.0 ) THEN |
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| 73 | tend(k,j,i) = tend(k,j,i) - vkomp * & |
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| 74 | ( u(k,j,i) - u(k,j-1,i) ) * ddy |
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| 75 | ELSE |
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| 76 | tend(k,j,i) = tend(k,j,i) - vkomp * & |
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| 77 | ( u(k,j+1,i) - u(k,j,i) ) * ddy |
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| 78 | ENDIF |
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| 79 | ! |
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| 80 | !-- z-direction |
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| 81 | wkomp = 0.25 * ( w(k,j,i) + w(k-1,j,i) + & |
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| 82 | w(k,j,i-1) + w(k-1,j,i-1) ) |
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| 83 | IF ( wkomp > 0.0 ) THEN |
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| 84 | tend(k,j,i) = tend(k,j,i) - wkomp * & |
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| 85 | ( u(k,j,i) - u(k-1,j,i) ) * ddzu(k) |
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| 86 | ELSE |
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| 87 | tend(k,j,i) = tend(k,j,i) - wkomp * & |
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| 88 | ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) |
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| 89 | ENDIF |
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| 90 | |
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| 91 | ENDDO |
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| 92 | ENDDO |
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| 93 | ENDDO |
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| 94 | |
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| 95 | END SUBROUTINE advec_u_up |
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| 96 | |
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| 97 | |
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| 98 | !------------------------------------------------------------------------------! |
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| 99 | ! Call for grid point i,j |
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| 100 | !------------------------------------------------------------------------------! |
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| 101 | SUBROUTINE advec_u_up_ij( i, j ) |
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| 102 | |
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| 103 | USE arrays_3d |
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| 104 | USE control_parameters |
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| 105 | USE grid_variables |
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| 106 | USE indices |
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| 107 | |
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| 108 | IMPLICIT NONE |
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| 109 | |
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| 110 | INTEGER :: i, j, k |
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| 111 | |
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| 112 | REAL :: ukomp, vkomp, wkomp |
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| 113 | |
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| 114 | |
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| 115 | DO k = nzb_u_inner(j,i)+1, nzt |
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| 116 | ! |
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| 117 | !-- x-direction |
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| 118 | ukomp = u(k,j,i) - u_gtrans |
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| 119 | IF ( ukomp > 0.0 ) THEN |
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| 120 | tend(k,j,i) = tend(k,j,i) - ukomp * & |
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| 121 | ( u(k,j,i) - u(k,j,i-1) ) * ddx |
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| 122 | ELSE |
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| 123 | tend(k,j,i) = tend(k,j,i) - ukomp * & |
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| 124 | ( u(k,j,i+1) - u(k,j,i) ) * ddx |
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| 125 | ENDIF |
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| 126 | ! |
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| 127 | !-- y-direction |
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| 128 | vkomp = 0.25 * ( v(k,j,i) + v(k,j+1,i) + v(k,j,i-1) + v(k,j+1,i-1) & |
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| 129 | ) - v_gtrans |
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| 130 | IF ( vkomp > 0.0 ) THEN |
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| 131 | tend(k,j,i) = tend(k,j,i) - vkomp * & |
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| 132 | ( u(k,j,i) - u(k,j-1,i) ) * ddy |
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| 133 | ELSE |
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| 134 | tend(k,j,i) = tend(k,j,i) - vkomp * & |
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| 135 | ( u(k,j+1,i) - u(k,j,i) ) * ddy |
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| 136 | ENDIF |
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| 137 | ! |
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| 138 | !-- z-direction |
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| 139 | wkomp = 0.25 * ( w(k,j,i) + w(k-1,j,i) + w(k,j,i-1) + w(k-1,j,i-1) ) |
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| 140 | IF ( wkomp > 0.0 ) THEN |
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| 141 | tend(k,j,i) = tend(k,j,i) - wkomp * & |
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| 142 | ( u(k,j,i) - u(k-1,j,i) ) * ddzu(k) |
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| 143 | ELSE |
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| 144 | tend(k,j,i) = tend(k,j,i) - wkomp * & |
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| 145 | ( u(k+1,j,i) - u(k,j,i) ) * ddzu(k+1) |
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| 146 | ENDIF |
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| 147 | |
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| 148 | ENDDO |
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| 149 | |
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| 150 | END SUBROUTINE advec_u_up_ij |
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| 151 | |
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| 152 | END MODULE advec_u_up_mod |
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