1 | MODULE advec_w_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_w_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 1.11 2006/02/23 09:47:23 raasch |
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14 | ! *** empty log message *** |
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15 | ! |
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16 | ! Revision 1.1 1997/08/29 08:56:33 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 w 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_w_up |
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29 | |
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30 | INTERFACE advec_w_up |
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31 | MODULE PROCEDURE advec_w_up |
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32 | MODULE PROCEDURE advec_w_up_ij |
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33 | END INTERFACE advec_w_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_w_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 | REAL :: ukomp, vkomp |
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52 | |
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53 | |
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54 | DO i = nxl, nxr |
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55 | DO j = nys, nyn |
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56 | DO k = nzb_w_inner(j,i)+1, nzt-1 |
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57 | ! |
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58 | !-- x-direction |
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59 | ukomp = 0.25 * ( u(k,j,i) + u(k,j,i+1) + & |
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60 | u(k+1,j,i) + u(k+1,j,i+1) ) - 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 | ( w(k,j,i) - w(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 | ( w(k,j,i+1) - w(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+1,j,i) + v(k+1,j+1,i) ) - 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 | ( w(k,j,i) - w(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 | ( w(k,j+1,i) - w(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 | IF ( w(k,j,i) > 0.0 ) THEN |
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82 | tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & |
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83 | ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) |
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84 | ELSE |
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85 | tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & |
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86 | ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) |
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87 | ENDIF |
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88 | |
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89 | ENDDO |
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90 | ENDDO |
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91 | ENDDO |
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92 | |
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93 | END SUBROUTINE advec_w_up |
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94 | |
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95 | |
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96 | !------------------------------------------------------------------------------! |
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97 | ! Call for grid point i,j |
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98 | !------------------------------------------------------------------------------! |
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99 | SUBROUTINE advec_w_up_ij( i, j ) |
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100 | |
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101 | USE arrays_3d |
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102 | USE control_parameters |
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103 | USE grid_variables |
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104 | USE indices |
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105 | |
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106 | IMPLICIT NONE |
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107 | |
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108 | INTEGER :: i, j, k |
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109 | REAL :: ukomp, vkomp |
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110 | |
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111 | |
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112 | DO k = nzb_w_inner(j,i)+1, nzt-1 |
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113 | ! |
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114 | !-- x-direction |
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115 | ukomp = 0.25 * ( u(k,j,i) + u(k,j,i+1) + u(k+1,j,i) + u(k+1,j,i+1) & |
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116 | ) - u_gtrans |
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117 | IF ( ukomp > 0.0 ) THEN |
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118 | tend(k,j,i) = tend(k,j,i) - ukomp * & |
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119 | ( w(k,j,i) - w(k,j,i-1) ) * ddx |
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120 | ELSE |
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121 | tend(k,j,i) = tend(k,j,i) - ukomp * & |
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122 | ( w(k,j,i+1) - w(k,j,i) ) * ddx |
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123 | ENDIF |
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124 | ! |
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125 | !-- y-direction |
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126 | vkomp = 0.25 * ( v(k,j,i) + v(k,j+1,i) + v(k+1,j,i) + v(k+1,j+1,i) & |
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127 | ) - v_gtrans |
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128 | IF ( vkomp > 0.0 ) THEN |
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129 | tend(k,j,i) = tend(k,j,i) - vkomp * & |
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130 | ( w(k,j,i) - w(k,j-1,i) ) * ddy |
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131 | ELSE |
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132 | tend(k,j,i) = tend(k,j,i) - vkomp * & |
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133 | ( w(k,j+1,i) - w(k,j,i) ) * ddy |
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134 | ENDIF |
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135 | ! |
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136 | !-- z-direction |
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137 | IF ( w(k,j,i) > 0.0 ) THEN |
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138 | tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & |
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139 | ( w(k,j,i) - w(k-1,j,i) ) * ddzw(k) |
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140 | ELSE |
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141 | tend(k,j,i) = tend(k,j,i) - w(k,j,i) * & |
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142 | ( w(k+1,j,i) - w(k,j,i) ) * ddzw(k+1) |
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143 | ENDIF |
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144 | |
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145 | ENDDO |
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146 | |
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147 | END SUBROUTINE advec_w_up_ij |
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148 | |
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149 | END MODULE advec_w_up_mod |
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