1 | !> @file boundary_conds.f90 |
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2 | !--------------------------------------------------------------------------------! |
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3 | ! This file is part of PALM. |
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4 | ! |
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5 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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6 | ! of the GNU General Public License as published by the Free Software Foundation, |
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7 | ! either version 3 of the License, or (at your option) any later version. |
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8 | ! |
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9 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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10 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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11 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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12 | ! |
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13 | ! You should have received a copy of the GNU General Public License along with |
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14 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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15 | ! |
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16 | ! Copyright 1997-2016 Leibniz Universitaet Hannover |
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17 | !--------------------------------------------------------------------------------! |
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18 | ! |
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19 | ! Current revisions: |
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20 | ! ----------------- |
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21 | ! |
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22 | ! |
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23 | ! Former revisions: |
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24 | ! ----------------- |
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25 | ! $Id: boundary_conds.f90 1823 2016-04-07 08:57:52Z raasch $ |
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26 | ! |
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27 | ! 1822 2016-04-07 07:49:42Z hoffmann |
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28 | ! icloud_scheme removed. microphyisics_seifert added. |
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29 | ! |
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30 | ! 1764 2016-02-28 12:45:19Z raasch |
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31 | ! index bug for u_p at left outflow removed |
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32 | ! |
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33 | ! 1762 2016-02-25 12:31:13Z hellstea |
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34 | ! Introduction of nested domain feature |
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35 | ! |
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36 | ! 1742 2016-01-13 09:50:06Z raasch |
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37 | ! bugfix for outflow Neumann boundary conditions at bottom and top |
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38 | ! |
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39 | ! 1717 2015-11-11 15:09:47Z raasch |
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40 | ! Bugfix: index error in outflow conditions for left boundary |
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41 | ! |
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42 | ! 1682 2015-10-07 23:56:08Z knoop |
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43 | ! Code annotations made doxygen readable |
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44 | ! |
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45 | ! 1410 2014-05-23 12:16:18Z suehring |
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46 | ! Bugfix: set dirichlet boundary condition for passive_scalar at model domain |
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47 | ! top |
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48 | ! |
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49 | ! 1399 2014-05-07 11:16:25Z heinze |
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50 | ! Bugfix: set inflow boundary conditions also if no humidity or passive_scalar |
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51 | ! is used. |
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52 | ! |
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53 | ! 1398 2014-05-07 11:15:00Z heinze |
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54 | ! Dirichlet-condition at the top for u and v changed to u_init and v_init also |
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55 | ! for large_scale_forcing |
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56 | ! |
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57 | ! 1380 2014-04-28 12:40:45Z heinze |
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58 | ! Adjust Dirichlet-condition at the top for pt in case of nudging |
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59 | ! |
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60 | ! 1361 2014-04-16 15:17:48Z hoffmann |
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61 | ! Bottom and top boundary conditions of rain water content (qr) and |
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62 | ! rain drop concentration (nr) changed to Dirichlet |
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63 | ! |
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64 | ! 1353 2014-04-08 15:21:23Z heinze |
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65 | ! REAL constants provided with KIND-attribute |
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66 | ! |
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67 | ! 1320 2014-03-20 08:40:49Z raasch |
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68 | ! ONLY-attribute added to USE-statements, |
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69 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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70 | ! kinds are defined in new module kinds, |
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71 | ! revision history before 2012 removed, |
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72 | ! comment fields (!:) to be used for variable explanations added to |
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73 | ! all variable declaration statements |
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74 | ! |
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75 | ! 1257 2013-11-08 15:18:40Z raasch |
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76 | ! loop independent clauses added |
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77 | ! |
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78 | ! 1241 2013-10-30 11:36:58Z heinze |
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79 | ! Adjust ug and vg at each timestep in case of large_scale_forcing |
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80 | ! |
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81 | ! 1159 2013-05-21 11:58:22Z fricke |
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82 | ! Bugfix: Neumann boundary conditions for the velocity components at the |
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83 | ! outflow are in fact radiation boundary conditions using the maximum phase |
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84 | ! velocity that ensures numerical stability (CFL-condition). |
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85 | ! Hence, logical operator use_cmax is now used instead of bc_lr_dirneu/_neudir. |
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86 | ! Bugfix: In case of use_cmax at the outflow, u, v, w are replaced by |
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87 | ! u_p, v_p, w_p |
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88 | ! |
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89 | ! 1115 2013-03-26 18:16:16Z hoffmann |
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90 | ! boundary conditions of two-moment cloud scheme are restricted to Neumann- |
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91 | ! boundary-conditions |
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92 | ! |
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93 | ! 1113 2013-03-10 02:48:14Z raasch |
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94 | ! GPU-porting |
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95 | ! dummy argument "range" removed |
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96 | ! Bugfix: wrong index in loops of radiation boundary condition |
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97 | ! |
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98 | ! 1053 2012-11-13 17:11:03Z hoffmann |
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99 | ! boundary conditions for the two new prognostic equations (nr, qr) of the |
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100 | ! two-moment cloud scheme |
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101 | ! |
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102 | ! 1036 2012-10-22 13:43:42Z raasch |
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103 | ! code put under GPL (PALM 3.9) |
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104 | ! |
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105 | ! 996 2012-09-07 10:41:47Z raasch |
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106 | ! little reformatting |
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107 | ! |
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108 | ! 978 2012-08-09 08:28:32Z fricke |
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109 | ! Neumann boudnary conditions are added at the inflow boundary for the SGS-TKE. |
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110 | ! Outflow boundary conditions for the velocity components can be set to Neumann |
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111 | ! conditions or to radiation conditions with a horizontal averaged phase |
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112 | ! velocity. |
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113 | ! |
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114 | ! 875 2012-04-02 15:35:15Z gryschka |
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115 | ! Bugfix in case of dirichlet inflow bc at the right or north boundary |
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116 | ! |
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117 | ! Revision 1.1 1997/09/12 06:21:34 raasch |
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118 | ! Initial revision |
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119 | ! |
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120 | ! |
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121 | ! Description: |
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122 | ! ------------ |
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123 | !> Boundary conditions for the prognostic quantities. |
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124 | !> One additional bottom boundary condition is applied for the TKE (=(u*)**2) |
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125 | !> in prandtl_fluxes. The cyclic lateral boundary conditions are implicitly |
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126 | !> handled in routine exchange_horiz. Pressure boundary conditions are |
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127 | !> explicitly set in routines pres, poisfft, poismg and sor. |
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128 | !------------------------------------------------------------------------------! |
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129 | SUBROUTINE boundary_conds |
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130 | |
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131 | |
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132 | USE arrays_3d, & |
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133 | ONLY: c_u, c_u_m, c_u_m_l, c_v, c_v_m, c_v_m_l, c_w, c_w_m, c_w_m_l, & |
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134 | dzu, e_p, nr_p, pt, pt_p, q, q_p, qr_p, sa, sa_p, & |
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135 | u, ug, u_init, u_m_l, u_m_n, u_m_r, u_m_s, u_p, & |
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136 | v, vg, v_init, v_m_l, v_m_n, v_m_r, v_m_s, v_p, & |
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137 | w, w_p, w_m_l, w_m_n, w_m_r, w_m_s,& |
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138 | pt_init |
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139 | |
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140 | USE control_parameters, & |
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141 | ONLY: bc_pt_t_val, bc_q_t_val, constant_diffusion, & |
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142 | cloud_physics, dt_3d, humidity, & |
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143 | ibc_pt_b, ibc_pt_t, ibc_q_b, ibc_q_t, ibc_sa_t, ibc_uv_b, & |
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144 | ibc_uv_t, inflow_l, inflow_n, inflow_r, inflow_s, & |
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145 | intermediate_timestep_count, large_scale_forcing, & |
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146 | microphysics_seifert, nest_domain, nest_bound_l, nest_bound_s, & |
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147 | nudging, ocean, outflow_l, outflow_n, outflow_r, outflow_s, & |
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148 | passive_scalar, tsc, use_cmax |
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149 | |
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150 | USE grid_variables, & |
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151 | ONLY: ddx, ddy, dx, dy |
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152 | |
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153 | USE indices, & |
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154 | ONLY: nx, nxl, nxlg, nxr, nxrg, ny, nyn, nyng, nys, nysg, & |
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155 | nzb, nzb_s_inner, nzb_w_inner, nzt |
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156 | |
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157 | USE kinds |
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158 | |
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159 | USE pegrid |
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160 | |
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161 | |
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162 | IMPLICIT NONE |
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163 | |
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164 | INTEGER(iwp) :: i !< |
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165 | INTEGER(iwp) :: j !< |
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166 | INTEGER(iwp) :: k !< |
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167 | |
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168 | REAL(wp) :: c_max !< |
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169 | REAL(wp) :: denom !< |
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170 | |
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171 | |
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172 | ! |
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173 | !-- Bottom boundary |
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174 | IF ( ibc_uv_b == 1 ) THEN |
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175 | !$acc kernels present( u_p, v_p ) |
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176 | u_p(nzb,:,:) = u_p(nzb+1,:,:) |
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177 | v_p(nzb,:,:) = v_p(nzb+1,:,:) |
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178 | !$acc end kernels |
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179 | ENDIF |
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180 | |
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181 | !$acc kernels present( nzb_w_inner, w_p ) |
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182 | DO i = nxlg, nxrg |
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183 | DO j = nysg, nyng |
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184 | w_p(nzb_w_inner(j,i),j,i) = 0.0_wp |
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185 | ENDDO |
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186 | ENDDO |
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187 | !$acc end kernels |
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188 | |
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189 | ! |
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190 | !-- Top boundary. A nested domain ( ibc_uv_t = 3 ) does not require settings. |
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191 | IF ( ibc_uv_t == 0 ) THEN |
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192 | !$acc kernels present( u_init, u_p, v_init, v_p ) |
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193 | u_p(nzt+1,:,:) = u_init(nzt+1) |
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194 | v_p(nzt+1,:,:) = v_init(nzt+1) |
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195 | !$acc end kernels |
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196 | ELSEIF ( ibc_uv_t == 1 ) THEN |
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197 | !$acc kernels present( u_p, v_p ) |
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198 | u_p(nzt+1,:,:) = u_p(nzt,:,:) |
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199 | v_p(nzt+1,:,:) = v_p(nzt,:,:) |
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200 | !$acc end kernels |
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201 | ENDIF |
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202 | |
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203 | IF ( .NOT. nest_domain ) THEN |
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204 | !$acc kernels present( w_p ) |
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205 | w_p(nzt:nzt+1,:,:) = 0.0_wp ! nzt is not a prognostic level (but cf. pres) |
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206 | !$acc end kernels |
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207 | ENDIF |
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208 | |
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209 | ! |
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210 | !-- Temperature at bottom boundary. |
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211 | !-- In case of coupled runs (ibc_pt_b = 2) the temperature is given by |
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212 | !-- the sea surface temperature of the coupled ocean model. |
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213 | IF ( ibc_pt_b == 0 ) THEN |
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214 | !$acc kernels present( nzb_s_inner, pt, pt_p ) |
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215 | !$acc loop independent |
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216 | DO i = nxlg, nxrg |
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217 | !$acc loop independent |
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218 | DO j = nysg, nyng |
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219 | pt_p(nzb_s_inner(j,i),j,i) = pt(nzb_s_inner(j,i),j,i) |
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220 | ENDDO |
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221 | ENDDO |
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222 | !$acc end kernels |
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223 | ELSEIF ( ibc_pt_b == 1 ) THEN |
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224 | !$acc kernels present( nzb_s_inner, pt_p ) |
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225 | !$acc loop independent |
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226 | DO i = nxlg, nxrg |
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227 | !$acc loop independent |
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228 | DO j = nysg, nyng |
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229 | pt_p(nzb_s_inner(j,i),j,i) = pt_p(nzb_s_inner(j,i)+1,j,i) |
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230 | ENDDO |
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231 | ENDDO |
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232 | !$acc end kernels |
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233 | ENDIF |
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234 | |
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235 | ! |
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236 | !-- Temperature at top boundary |
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237 | IF ( ibc_pt_t == 0 ) THEN |
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238 | !$acc kernels present( pt, pt_p ) |
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239 | pt_p(nzt+1,:,:) = pt(nzt+1,:,:) |
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240 | ! |
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241 | !-- In case of nudging adjust top boundary to pt which is |
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242 | !-- read in from NUDGING-DATA |
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243 | IF ( nudging ) THEN |
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244 | pt_p(nzt+1,:,:) = pt_init(nzt+1) |
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245 | ENDIF |
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246 | !$acc end kernels |
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247 | ELSEIF ( ibc_pt_t == 1 ) THEN |
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248 | !$acc kernels present( pt_p ) |
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249 | pt_p(nzt+1,:,:) = pt_p(nzt,:,:) |
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250 | !$acc end kernels |
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251 | ELSEIF ( ibc_pt_t == 2 ) THEN |
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252 | !$acc kernels present( dzu, pt_p ) |
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253 | pt_p(nzt+1,:,:) = pt_p(nzt,:,:) + bc_pt_t_val * dzu(nzt+1) |
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254 | !$acc end kernels |
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255 | ENDIF |
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256 | |
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257 | ! |
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258 | !-- Boundary conditions for TKE |
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259 | !-- Generally Neumann conditions with de/dz=0 are assumed |
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260 | IF ( .NOT. constant_diffusion ) THEN |
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261 | !$acc kernels present( e_p, nzb_s_inner ) |
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262 | !$acc loop independent |
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263 | DO i = nxlg, nxrg |
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264 | !$acc loop independent |
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265 | DO j = nysg, nyng |
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266 | e_p(nzb_s_inner(j,i),j,i) = e_p(nzb_s_inner(j,i)+1,j,i) |
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267 | ENDDO |
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268 | ENDDO |
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269 | IF ( .NOT. nest_domain ) THEN |
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270 | e_p(nzt+1,:,:) = e_p(nzt,:,:) |
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271 | ENDIF |
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272 | !$acc end kernels |
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273 | ENDIF |
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274 | |
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275 | ! |
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276 | !-- Boundary conditions for salinity |
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277 | IF ( ocean ) THEN |
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278 | ! |
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279 | !-- Bottom boundary: Neumann condition because salinity flux is always |
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280 | !-- given |
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281 | DO i = nxlg, nxrg |
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282 | DO j = nysg, nyng |
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283 | sa_p(nzb_s_inner(j,i),j,i) = sa_p(nzb_s_inner(j,i)+1,j,i) |
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284 | ENDDO |
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285 | ENDDO |
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286 | |
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287 | ! |
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288 | !-- Top boundary: Dirichlet or Neumann |
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289 | IF ( ibc_sa_t == 0 ) THEN |
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290 | sa_p(nzt+1,:,:) = sa(nzt+1,:,:) |
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291 | ELSEIF ( ibc_sa_t == 1 ) THEN |
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292 | sa_p(nzt+1,:,:) = sa_p(nzt,:,:) |
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293 | ENDIF |
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294 | |
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295 | ENDIF |
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296 | |
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297 | ! |
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298 | !-- Boundary conditions for total water content or scalar, |
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299 | !-- bottom and top boundary (see also temperature) |
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300 | IF ( humidity .OR. passive_scalar ) THEN |
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301 | ! |
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302 | !-- Surface conditions for constant_humidity_flux |
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303 | IF ( ibc_q_b == 0 ) THEN |
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304 | DO i = nxlg, nxrg |
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305 | DO j = nysg, nyng |
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306 | q_p(nzb_s_inner(j,i),j,i) = q(nzb_s_inner(j,i),j,i) |
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307 | ENDDO |
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308 | ENDDO |
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309 | ELSE |
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310 | DO i = nxlg, nxrg |
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311 | DO j = nysg, nyng |
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312 | q_p(nzb_s_inner(j,i),j,i) = q_p(nzb_s_inner(j,i)+1,j,i) |
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313 | ENDDO |
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314 | ENDDO |
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315 | ENDIF |
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316 | ! |
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317 | !-- Top boundary |
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318 | IF ( ibc_q_t == 0 ) THEN |
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319 | q_p(nzt+1,:,:) = q(nzt+1,:,:) |
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320 | ELSEIF ( ibc_q_t == 1 ) THEN |
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321 | q_p(nzt+1,:,:) = q_p(nzt,:,:) + bc_q_t_val * dzu(nzt+1) |
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322 | ENDIF |
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323 | |
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324 | IF ( cloud_physics .AND. microphysics_seifert ) THEN |
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325 | ! |
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326 | !-- Surface conditions rain water (Dirichlet) |
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327 | DO i = nxlg, nxrg |
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328 | DO j = nysg, nyng |
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329 | qr_p(nzb_s_inner(j,i),j,i) = 0.0_wp |
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330 | nr_p(nzb_s_inner(j,i),j,i) = 0.0_wp |
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331 | ENDDO |
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332 | ENDDO |
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333 | ! |
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334 | !-- Top boundary condition for rain water (Dirichlet) |
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335 | qr_p(nzt+1,:,:) = 0.0_wp |
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336 | nr_p(nzt+1,:,:) = 0.0_wp |
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337 | |
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338 | ENDIF |
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339 | ENDIF |
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340 | ! |
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341 | !-- In case of inflow or nest boundary at the south boundary the boundary for v |
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342 | !-- is at nys and in case of inflow or nest boundary at the left boundary the |
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343 | !-- boundary for u is at nxl. Since in prognostic_equations (cache optimized |
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344 | !-- version) these levels are handled as a prognostic level, boundary values |
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345 | !-- have to be restored here. |
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346 | !-- For the SGS-TKE, Neumann boundary conditions are used at the inflow. |
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347 | IF ( inflow_s ) THEN |
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348 | v_p(:,nys,:) = v_p(:,nys-1,:) |
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349 | IF ( .NOT. constant_diffusion ) e_p(:,nys-1,:) = e_p(:,nys,:) |
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350 | ELSEIF ( inflow_n ) THEN |
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351 | IF ( .NOT. constant_diffusion ) e_p(:,nyn+1,:) = e_p(:,nyn,:) |
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352 | ELSEIF ( inflow_l ) THEN |
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353 | u_p(:,:,nxl) = u_p(:,:,nxl-1) |
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354 | IF ( .NOT. constant_diffusion ) e_p(:,:,nxl-1) = e_p(:,:,nxl) |
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355 | ELSEIF ( inflow_r ) THEN |
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356 | IF ( .NOT. constant_diffusion ) e_p(:,:,nxr+1) = e_p(:,:,nxr) |
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357 | ENDIF |
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358 | |
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359 | ! |
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360 | !-- The same restoration for u at i=nxl and v at j=nys as above must be made |
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361 | !-- in case of nest boundaries. Note however, that the above ELSEIF-structure is |
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362 | !-- not appropriate here as there may be more than one nest boundary on a |
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363 | !-- PE-domain. Furthermore Neumann conditions for SGS-TKE are not required here. |
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364 | IF ( nest_bound_s ) THEN |
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365 | v_p(:,nys,:) = v_p(:,nys-1,:) |
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366 | ENDIF |
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367 | IF ( nest_bound_l ) THEN |
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368 | u_p(:,:,nxl) = u_p(:,:,nxl-1) |
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369 | ENDIF |
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370 | |
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371 | ! |
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372 | !-- Lateral boundary conditions for scalar quantities at the outflow |
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373 | IF ( outflow_s ) THEN |
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374 | pt_p(:,nys-1,:) = pt_p(:,nys,:) |
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375 | IF ( .NOT. constant_diffusion ) e_p(:,nys-1,:) = e_p(:,nys,:) |
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376 | IF ( humidity .OR. passive_scalar ) THEN |
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377 | q_p(:,nys-1,:) = q_p(:,nys,:) |
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378 | IF ( cloud_physics .AND. microphysics_seifert ) THEN |
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379 | qr_p(:,nys-1,:) = qr_p(:,nys,:) |
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380 | nr_p(:,nys-1,:) = nr_p(:,nys,:) |
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381 | ENDIF |
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382 | ENDIF |
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383 | ELSEIF ( outflow_n ) THEN |
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384 | pt_p(:,nyn+1,:) = pt_p(:,nyn,:) |
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385 | IF ( .NOT. constant_diffusion ) e_p(:,nyn+1,:) = e_p(:,nyn,:) |
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386 | IF ( humidity .OR. passive_scalar ) THEN |
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387 | q_p(:,nyn+1,:) = q_p(:,nyn,:) |
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388 | IF ( cloud_physics .AND. microphysics_seifert ) THEN |
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389 | qr_p(:,nyn+1,:) = qr_p(:,nyn,:) |
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390 | nr_p(:,nyn+1,:) = nr_p(:,nyn,:) |
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391 | ENDIF |
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392 | ENDIF |
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393 | ELSEIF ( outflow_l ) THEN |
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394 | pt_p(:,:,nxl-1) = pt_p(:,:,nxl) |
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395 | IF ( .NOT. constant_diffusion ) e_p(:,:,nxl-1) = e_p(:,:,nxl) |
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396 | IF ( humidity .OR. passive_scalar ) THEN |
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397 | q_p(:,:,nxl-1) = q_p(:,:,nxl) |
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398 | IF ( cloud_physics .AND. microphysics_seifert ) THEN |
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399 | qr_p(:,:,nxl-1) = qr_p(:,:,nxl) |
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400 | nr_p(:,:,nxl-1) = nr_p(:,:,nxl) |
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401 | ENDIF |
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402 | ENDIF |
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403 | ELSEIF ( outflow_r ) THEN |
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404 | pt_p(:,:,nxr+1) = pt_p(:,:,nxr) |
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405 | IF ( .NOT. constant_diffusion ) e_p(:,:,nxr+1) = e_p(:,:,nxr) |
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406 | IF ( humidity .OR. passive_scalar ) THEN |
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407 | q_p(:,:,nxr+1) = q_p(:,:,nxr) |
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408 | IF ( cloud_physics .AND. microphysics_seifert ) THEN |
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409 | qr_p(:,:,nxr+1) = qr_p(:,:,nxr) |
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410 | nr_p(:,:,nxr+1) = nr_p(:,:,nxr) |
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411 | ENDIF |
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412 | ENDIF |
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413 | ENDIF |
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414 | |
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415 | ! |
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416 | !-- Radiation boundary conditions for the velocities at the respective outflow. |
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417 | !-- The phase velocity is either assumed to the maximum phase velocity that |
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418 | !-- ensures numerical stability (CFL-condition) or calculated after |
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419 | !-- Orlanski(1976) and averaged along the outflow boundary. |
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420 | IF ( outflow_s ) THEN |
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421 | |
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422 | IF ( use_cmax ) THEN |
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423 | u_p(:,-1,:) = u(:,0,:) |
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424 | v_p(:,0,:) = v(:,1,:) |
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425 | w_p(:,-1,:) = w(:,0,:) |
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426 | ELSEIF ( .NOT. use_cmax ) THEN |
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427 | |
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428 | c_max = dy / dt_3d |
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429 | |
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430 | c_u_m_l = 0.0_wp |
---|
431 | c_v_m_l = 0.0_wp |
---|
432 | c_w_m_l = 0.0_wp |
---|
433 | |
---|
434 | c_u_m = 0.0_wp |
---|
435 | c_v_m = 0.0_wp |
---|
436 | c_w_m = 0.0_wp |
---|
437 | |
---|
438 | ! |
---|
439 | !-- Calculate the phase speeds for u, v, and w, first local and then |
---|
440 | !-- average along the outflow boundary. |
---|
441 | DO k = nzb+1, nzt+1 |
---|
442 | DO i = nxl, nxr |
---|
443 | |
---|
444 | denom = u_m_s(k,0,i) - u_m_s(k,1,i) |
---|
445 | |
---|
446 | IF ( denom /= 0.0_wp ) THEN |
---|
447 | c_u(k,i) = -c_max * ( u(k,0,i) - u_m_s(k,0,i) ) / ( denom * tsc(2) ) |
---|
448 | IF ( c_u(k,i) < 0.0_wp ) THEN |
---|
449 | c_u(k,i) = 0.0_wp |
---|
450 | ELSEIF ( c_u(k,i) > c_max ) THEN |
---|
451 | c_u(k,i) = c_max |
---|
452 | ENDIF |
---|
453 | ELSE |
---|
454 | c_u(k,i) = c_max |
---|
455 | ENDIF |
---|
456 | |
---|
457 | denom = v_m_s(k,1,i) - v_m_s(k,2,i) |
---|
458 | |
---|
459 | IF ( denom /= 0.0_wp ) THEN |
---|
460 | c_v(k,i) = -c_max * ( v(k,1,i) - v_m_s(k,1,i) ) / ( denom * tsc(2) ) |
---|
461 | IF ( c_v(k,i) < 0.0_wp ) THEN |
---|
462 | c_v(k,i) = 0.0_wp |
---|
463 | ELSEIF ( c_v(k,i) > c_max ) THEN |
---|
464 | c_v(k,i) = c_max |
---|
465 | ENDIF |
---|
466 | ELSE |
---|
467 | c_v(k,i) = c_max |
---|
468 | ENDIF |
---|
469 | |
---|
470 | denom = w_m_s(k,0,i) - w_m_s(k,1,i) |
---|
471 | |
---|
472 | IF ( denom /= 0.0_wp ) THEN |
---|
473 | c_w(k,i) = -c_max * ( w(k,0,i) - w_m_s(k,0,i) ) / ( denom * tsc(2) ) |
---|
474 | IF ( c_w(k,i) < 0.0_wp ) THEN |
---|
475 | c_w(k,i) = 0.0_wp |
---|
476 | ELSEIF ( c_w(k,i) > c_max ) THEN |
---|
477 | c_w(k,i) = c_max |
---|
478 | ENDIF |
---|
479 | ELSE |
---|
480 | c_w(k,i) = c_max |
---|
481 | ENDIF |
---|
482 | |
---|
483 | c_u_m_l(k) = c_u_m_l(k) + c_u(k,i) |
---|
484 | c_v_m_l(k) = c_v_m_l(k) + c_v(k,i) |
---|
485 | c_w_m_l(k) = c_w_m_l(k) + c_w(k,i) |
---|
486 | |
---|
487 | ENDDO |
---|
488 | ENDDO |
---|
489 | |
---|
490 | #if defined( __parallel ) |
---|
491 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dx, ierr ) |
---|
492 | CALL MPI_ALLREDUCE( c_u_m_l(nzb+1), c_u_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
493 | MPI_SUM, comm1dx, ierr ) |
---|
494 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dx, ierr ) |
---|
495 | CALL MPI_ALLREDUCE( c_v_m_l(nzb+1), c_v_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
496 | MPI_SUM, comm1dx, ierr ) |
---|
497 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dx, ierr ) |
---|
498 | CALL MPI_ALLREDUCE( c_w_m_l(nzb+1), c_w_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
499 | MPI_SUM, comm1dx, ierr ) |
---|
500 | #else |
---|
501 | c_u_m = c_u_m_l |
---|
502 | c_v_m = c_v_m_l |
---|
503 | c_w_m = c_w_m_l |
---|
504 | #endif |
---|
505 | |
---|
506 | c_u_m = c_u_m / (nx+1) |
---|
507 | c_v_m = c_v_m / (nx+1) |
---|
508 | c_w_m = c_w_m / (nx+1) |
---|
509 | |
---|
510 | ! |
---|
511 | !-- Save old timelevels for the next timestep |
---|
512 | IF ( intermediate_timestep_count == 1 ) THEN |
---|
513 | u_m_s(:,:,:) = u(:,0:1,:) |
---|
514 | v_m_s(:,:,:) = v(:,1:2,:) |
---|
515 | w_m_s(:,:,:) = w(:,0:1,:) |
---|
516 | ENDIF |
---|
517 | |
---|
518 | ! |
---|
519 | !-- Calculate the new velocities |
---|
520 | DO k = nzb+1, nzt+1 |
---|
521 | DO i = nxlg, nxrg |
---|
522 | u_p(k,-1,i) = u(k,-1,i) - dt_3d * tsc(2) * c_u_m(k) * & |
---|
523 | ( u(k,-1,i) - u(k,0,i) ) * ddy |
---|
524 | |
---|
525 | v_p(k,0,i) = v(k,0,i) - dt_3d * tsc(2) * c_v_m(k) * & |
---|
526 | ( v(k,0,i) - v(k,1,i) ) * ddy |
---|
527 | |
---|
528 | w_p(k,-1,i) = w(k,-1,i) - dt_3d * tsc(2) * c_w_m(k) * & |
---|
529 | ( w(k,-1,i) - w(k,0,i) ) * ddy |
---|
530 | ENDDO |
---|
531 | ENDDO |
---|
532 | |
---|
533 | ! |
---|
534 | !-- Bottom boundary at the outflow |
---|
535 | IF ( ibc_uv_b == 0 ) THEN |
---|
536 | u_p(nzb,-1,:) = 0.0_wp |
---|
537 | v_p(nzb,0,:) = 0.0_wp |
---|
538 | ELSE |
---|
539 | u_p(nzb,-1,:) = u_p(nzb+1,-1,:) |
---|
540 | v_p(nzb,0,:) = v_p(nzb+1,0,:) |
---|
541 | ENDIF |
---|
542 | w_p(nzb,-1,:) = 0.0_wp |
---|
543 | |
---|
544 | ! |
---|
545 | !-- Top boundary at the outflow |
---|
546 | IF ( ibc_uv_t == 0 ) THEN |
---|
547 | u_p(nzt+1,-1,:) = u_init(nzt+1) |
---|
548 | v_p(nzt+1,0,:) = v_init(nzt+1) |
---|
549 | ELSE |
---|
550 | u_p(nzt+1,-1,:) = u_p(nzt,-1,:) |
---|
551 | v_p(nzt+1,0,:) = v_p(nzt,0,:) |
---|
552 | ENDIF |
---|
553 | w_p(nzt:nzt+1,-1,:) = 0.0_wp |
---|
554 | |
---|
555 | ENDIF |
---|
556 | |
---|
557 | ENDIF |
---|
558 | |
---|
559 | IF ( outflow_n ) THEN |
---|
560 | |
---|
561 | IF ( use_cmax ) THEN |
---|
562 | u_p(:,ny+1,:) = u(:,ny,:) |
---|
563 | v_p(:,ny+1,:) = v(:,ny,:) |
---|
564 | w_p(:,ny+1,:) = w(:,ny,:) |
---|
565 | ELSEIF ( .NOT. use_cmax ) THEN |
---|
566 | |
---|
567 | c_max = dy / dt_3d |
---|
568 | |
---|
569 | c_u_m_l = 0.0_wp |
---|
570 | c_v_m_l = 0.0_wp |
---|
571 | c_w_m_l = 0.0_wp |
---|
572 | |
---|
573 | c_u_m = 0.0_wp |
---|
574 | c_v_m = 0.0_wp |
---|
575 | c_w_m = 0.0_wp |
---|
576 | |
---|
577 | ! |
---|
578 | !-- Calculate the phase speeds for u, v, and w, first local and then |
---|
579 | !-- average along the outflow boundary. |
---|
580 | DO k = nzb+1, nzt+1 |
---|
581 | DO i = nxl, nxr |
---|
582 | |
---|
583 | denom = u_m_n(k,ny,i) - u_m_n(k,ny-1,i) |
---|
584 | |
---|
585 | IF ( denom /= 0.0_wp ) THEN |
---|
586 | c_u(k,i) = -c_max * ( u(k,ny,i) - u_m_n(k,ny,i) ) / ( denom * tsc(2) ) |
---|
587 | IF ( c_u(k,i) < 0.0_wp ) THEN |
---|
588 | c_u(k,i) = 0.0_wp |
---|
589 | ELSEIF ( c_u(k,i) > c_max ) THEN |
---|
590 | c_u(k,i) = c_max |
---|
591 | ENDIF |
---|
592 | ELSE |
---|
593 | c_u(k,i) = c_max |
---|
594 | ENDIF |
---|
595 | |
---|
596 | denom = v_m_n(k,ny,i) - v_m_n(k,ny-1,i) |
---|
597 | |
---|
598 | IF ( denom /= 0.0_wp ) THEN |
---|
599 | c_v(k,i) = -c_max * ( v(k,ny,i) - v_m_n(k,ny,i) ) / ( denom * tsc(2) ) |
---|
600 | IF ( c_v(k,i) < 0.0_wp ) THEN |
---|
601 | c_v(k,i) = 0.0_wp |
---|
602 | ELSEIF ( c_v(k,i) > c_max ) THEN |
---|
603 | c_v(k,i) = c_max |
---|
604 | ENDIF |
---|
605 | ELSE |
---|
606 | c_v(k,i) = c_max |
---|
607 | ENDIF |
---|
608 | |
---|
609 | denom = w_m_n(k,ny,i) - w_m_n(k,ny-1,i) |
---|
610 | |
---|
611 | IF ( denom /= 0.0_wp ) THEN |
---|
612 | c_w(k,i) = -c_max * ( w(k,ny,i) - w_m_n(k,ny,i) ) / ( denom * tsc(2) ) |
---|
613 | IF ( c_w(k,i) < 0.0_wp ) THEN |
---|
614 | c_w(k,i) = 0.0_wp |
---|
615 | ELSEIF ( c_w(k,i) > c_max ) THEN |
---|
616 | c_w(k,i) = c_max |
---|
617 | ENDIF |
---|
618 | ELSE |
---|
619 | c_w(k,i) = c_max |
---|
620 | ENDIF |
---|
621 | |
---|
622 | c_u_m_l(k) = c_u_m_l(k) + c_u(k,i) |
---|
623 | c_v_m_l(k) = c_v_m_l(k) + c_v(k,i) |
---|
624 | c_w_m_l(k) = c_w_m_l(k) + c_w(k,i) |
---|
625 | |
---|
626 | ENDDO |
---|
627 | ENDDO |
---|
628 | |
---|
629 | #if defined( __parallel ) |
---|
630 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dx, ierr ) |
---|
631 | CALL MPI_ALLREDUCE( c_u_m_l(nzb+1), c_u_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
632 | MPI_SUM, comm1dx, ierr ) |
---|
633 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dx, ierr ) |
---|
634 | CALL MPI_ALLREDUCE( c_v_m_l(nzb+1), c_v_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
635 | MPI_SUM, comm1dx, ierr ) |
---|
636 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dx, ierr ) |
---|
637 | CALL MPI_ALLREDUCE( c_w_m_l(nzb+1), c_w_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
638 | MPI_SUM, comm1dx, ierr ) |
---|
639 | #else |
---|
640 | c_u_m = c_u_m_l |
---|
641 | c_v_m = c_v_m_l |
---|
642 | c_w_m = c_w_m_l |
---|
643 | #endif |
---|
644 | |
---|
645 | c_u_m = c_u_m / (nx+1) |
---|
646 | c_v_m = c_v_m / (nx+1) |
---|
647 | c_w_m = c_w_m / (nx+1) |
---|
648 | |
---|
649 | ! |
---|
650 | !-- Save old timelevels for the next timestep |
---|
651 | IF ( intermediate_timestep_count == 1 ) THEN |
---|
652 | u_m_n(:,:,:) = u(:,ny-1:ny,:) |
---|
653 | v_m_n(:,:,:) = v(:,ny-1:ny,:) |
---|
654 | w_m_n(:,:,:) = w(:,ny-1:ny,:) |
---|
655 | ENDIF |
---|
656 | |
---|
657 | ! |
---|
658 | !-- Calculate the new velocities |
---|
659 | DO k = nzb+1, nzt+1 |
---|
660 | DO i = nxlg, nxrg |
---|
661 | u_p(k,ny+1,i) = u(k,ny+1,i) - dt_3d * tsc(2) * c_u_m(k) * & |
---|
662 | ( u(k,ny+1,i) - u(k,ny,i) ) * ddy |
---|
663 | |
---|
664 | v_p(k,ny+1,i) = v(k,ny+1,i) - dt_3d * tsc(2) * c_v_m(k) * & |
---|
665 | ( v(k,ny+1,i) - v(k,ny,i) ) * ddy |
---|
666 | |
---|
667 | w_p(k,ny+1,i) = w(k,ny+1,i) - dt_3d * tsc(2) * c_w_m(k) * & |
---|
668 | ( w(k,ny+1,i) - w(k,ny,i) ) * ddy |
---|
669 | ENDDO |
---|
670 | ENDDO |
---|
671 | |
---|
672 | ! |
---|
673 | !-- Bottom boundary at the outflow |
---|
674 | IF ( ibc_uv_b == 0 ) THEN |
---|
675 | u_p(nzb,ny+1,:) = 0.0_wp |
---|
676 | v_p(nzb,ny+1,:) = 0.0_wp |
---|
677 | ELSE |
---|
678 | u_p(nzb,ny+1,:) = u_p(nzb+1,ny+1,:) |
---|
679 | v_p(nzb,ny+1,:) = v_p(nzb+1,ny+1,:) |
---|
680 | ENDIF |
---|
681 | w_p(nzb,ny+1,:) = 0.0_wp |
---|
682 | |
---|
683 | ! |
---|
684 | !-- Top boundary at the outflow |
---|
685 | IF ( ibc_uv_t == 0 ) THEN |
---|
686 | u_p(nzt+1,ny+1,:) = u_init(nzt+1) |
---|
687 | v_p(nzt+1,ny+1,:) = v_init(nzt+1) |
---|
688 | ELSE |
---|
689 | u_p(nzt+1,ny+1,:) = u_p(nzt,nyn+1,:) |
---|
690 | v_p(nzt+1,ny+1,:) = v_p(nzt,nyn+1,:) |
---|
691 | ENDIF |
---|
692 | w_p(nzt:nzt+1,ny+1,:) = 0.0_wp |
---|
693 | |
---|
694 | ENDIF |
---|
695 | |
---|
696 | ENDIF |
---|
697 | |
---|
698 | IF ( outflow_l ) THEN |
---|
699 | |
---|
700 | IF ( use_cmax ) THEN |
---|
701 | u_p(:,:,0) = u(:,:,1) |
---|
702 | v_p(:,:,-1) = v(:,:,0) |
---|
703 | w_p(:,:,-1) = w(:,:,0) |
---|
704 | ELSEIF ( .NOT. use_cmax ) THEN |
---|
705 | |
---|
706 | c_max = dx / dt_3d |
---|
707 | |
---|
708 | c_u_m_l = 0.0_wp |
---|
709 | c_v_m_l = 0.0_wp |
---|
710 | c_w_m_l = 0.0_wp |
---|
711 | |
---|
712 | c_u_m = 0.0_wp |
---|
713 | c_v_m = 0.0_wp |
---|
714 | c_w_m = 0.0_wp |
---|
715 | |
---|
716 | ! |
---|
717 | !-- Calculate the phase speeds for u, v, and w, first local and then |
---|
718 | !-- average along the outflow boundary. |
---|
719 | DO k = nzb+1, nzt+1 |
---|
720 | DO j = nys, nyn |
---|
721 | |
---|
722 | denom = u_m_l(k,j,1) - u_m_l(k,j,2) |
---|
723 | |
---|
724 | IF ( denom /= 0.0_wp ) THEN |
---|
725 | c_u(k,j) = -c_max * ( u(k,j,1) - u_m_l(k,j,1) ) / ( denom * tsc(2) ) |
---|
726 | IF ( c_u(k,j) < 0.0_wp ) THEN |
---|
727 | c_u(k,j) = 0.0_wp |
---|
728 | ELSEIF ( c_u(k,j) > c_max ) THEN |
---|
729 | c_u(k,j) = c_max |
---|
730 | ENDIF |
---|
731 | ELSE |
---|
732 | c_u(k,j) = c_max |
---|
733 | ENDIF |
---|
734 | |
---|
735 | denom = v_m_l(k,j,0) - v_m_l(k,j,1) |
---|
736 | |
---|
737 | IF ( denom /= 0.0_wp ) THEN |
---|
738 | c_v(k,j) = -c_max * ( v(k,j,0) - v_m_l(k,j,0) ) / ( denom * tsc(2) ) |
---|
739 | IF ( c_v(k,j) < 0.0_wp ) THEN |
---|
740 | c_v(k,j) = 0.0_wp |
---|
741 | ELSEIF ( c_v(k,j) > c_max ) THEN |
---|
742 | c_v(k,j) = c_max |
---|
743 | ENDIF |
---|
744 | ELSE |
---|
745 | c_v(k,j) = c_max |
---|
746 | ENDIF |
---|
747 | |
---|
748 | denom = w_m_l(k,j,0) - w_m_l(k,j,1) |
---|
749 | |
---|
750 | IF ( denom /= 0.0_wp ) THEN |
---|
751 | c_w(k,j) = -c_max * ( w(k,j,0) - w_m_l(k,j,0) ) / ( denom * tsc(2) ) |
---|
752 | IF ( c_w(k,j) < 0.0_wp ) THEN |
---|
753 | c_w(k,j) = 0.0_wp |
---|
754 | ELSEIF ( c_w(k,j) > c_max ) THEN |
---|
755 | c_w(k,j) = c_max |
---|
756 | ENDIF |
---|
757 | ELSE |
---|
758 | c_w(k,j) = c_max |
---|
759 | ENDIF |
---|
760 | |
---|
761 | c_u_m_l(k) = c_u_m_l(k) + c_u(k,j) |
---|
762 | c_v_m_l(k) = c_v_m_l(k) + c_v(k,j) |
---|
763 | c_w_m_l(k) = c_w_m_l(k) + c_w(k,j) |
---|
764 | |
---|
765 | ENDDO |
---|
766 | ENDDO |
---|
767 | |
---|
768 | #if defined( __parallel ) |
---|
769 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dy, ierr ) |
---|
770 | CALL MPI_ALLREDUCE( c_u_m_l(nzb+1), c_u_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
771 | MPI_SUM, comm1dy, ierr ) |
---|
772 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dy, ierr ) |
---|
773 | CALL MPI_ALLREDUCE( c_v_m_l(nzb+1), c_v_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
774 | MPI_SUM, comm1dy, ierr ) |
---|
775 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dy, ierr ) |
---|
776 | CALL MPI_ALLREDUCE( c_w_m_l(nzb+1), c_w_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
777 | MPI_SUM, comm1dy, ierr ) |
---|
778 | #else |
---|
779 | c_u_m = c_u_m_l |
---|
780 | c_v_m = c_v_m_l |
---|
781 | c_w_m = c_w_m_l |
---|
782 | #endif |
---|
783 | |
---|
784 | c_u_m = c_u_m / (ny+1) |
---|
785 | c_v_m = c_v_m / (ny+1) |
---|
786 | c_w_m = c_w_m / (ny+1) |
---|
787 | |
---|
788 | ! |
---|
789 | !-- Save old timelevels for the next timestep |
---|
790 | IF ( intermediate_timestep_count == 1 ) THEN |
---|
791 | u_m_l(:,:,:) = u(:,:,1:2) |
---|
792 | v_m_l(:,:,:) = v(:,:,0:1) |
---|
793 | w_m_l(:,:,:) = w(:,:,0:1) |
---|
794 | ENDIF |
---|
795 | |
---|
796 | ! |
---|
797 | !-- Calculate the new velocities |
---|
798 | DO k = nzb+1, nzt+1 |
---|
799 | DO j = nysg, nyng |
---|
800 | u_p(k,j,0) = u(k,j,0) - dt_3d * tsc(2) * c_u_m(k) * & |
---|
801 | ( u(k,j,0) - u(k,j,1) ) * ddx |
---|
802 | |
---|
803 | v_p(k,j,-1) = v(k,j,-1) - dt_3d * tsc(2) * c_v_m(k) * & |
---|
804 | ( v(k,j,-1) - v(k,j,0) ) * ddx |
---|
805 | |
---|
806 | w_p(k,j,-1) = w(k,j,-1) - dt_3d * tsc(2) * c_w_m(k) * & |
---|
807 | ( w(k,j,-1) - w(k,j,0) ) * ddx |
---|
808 | ENDDO |
---|
809 | ENDDO |
---|
810 | |
---|
811 | ! |
---|
812 | !-- Bottom boundary at the outflow |
---|
813 | IF ( ibc_uv_b == 0 ) THEN |
---|
814 | u_p(nzb,:,0) = 0.0_wp |
---|
815 | v_p(nzb,:,-1) = 0.0_wp |
---|
816 | ELSE |
---|
817 | u_p(nzb,:,0) = u_p(nzb+1,:,0) |
---|
818 | v_p(nzb,:,-1) = v_p(nzb+1,:,-1) |
---|
819 | ENDIF |
---|
820 | w_p(nzb,:,-1) = 0.0_wp |
---|
821 | |
---|
822 | ! |
---|
823 | !-- Top boundary at the outflow |
---|
824 | IF ( ibc_uv_t == 0 ) THEN |
---|
825 | u_p(nzt+1,:,0) = u_init(nzt+1) |
---|
826 | v_p(nzt+1,:,-1) = v_init(nzt+1) |
---|
827 | ELSE |
---|
828 | u_p(nzt+1,:,0) = u_p(nzt,:,0) |
---|
829 | v_p(nzt+1,:,-1) = v_p(nzt,:,-1) |
---|
830 | ENDIF |
---|
831 | w_p(nzt:nzt+1,:,-1) = 0.0_wp |
---|
832 | |
---|
833 | ENDIF |
---|
834 | |
---|
835 | ENDIF |
---|
836 | |
---|
837 | IF ( outflow_r ) THEN |
---|
838 | |
---|
839 | IF ( use_cmax ) THEN |
---|
840 | u_p(:,:,nx+1) = u(:,:,nx) |
---|
841 | v_p(:,:,nx+1) = v(:,:,nx) |
---|
842 | w_p(:,:,nx+1) = w(:,:,nx) |
---|
843 | ELSEIF ( .NOT. use_cmax ) THEN |
---|
844 | |
---|
845 | c_max = dx / dt_3d |
---|
846 | |
---|
847 | c_u_m_l = 0.0_wp |
---|
848 | c_v_m_l = 0.0_wp |
---|
849 | c_w_m_l = 0.0_wp |
---|
850 | |
---|
851 | c_u_m = 0.0_wp |
---|
852 | c_v_m = 0.0_wp |
---|
853 | c_w_m = 0.0_wp |
---|
854 | |
---|
855 | ! |
---|
856 | !-- Calculate the phase speeds for u, v, and w, first local and then |
---|
857 | !-- average along the outflow boundary. |
---|
858 | DO k = nzb+1, nzt+1 |
---|
859 | DO j = nys, nyn |
---|
860 | |
---|
861 | denom = u_m_r(k,j,nx) - u_m_r(k,j,nx-1) |
---|
862 | |
---|
863 | IF ( denom /= 0.0_wp ) THEN |
---|
864 | c_u(k,j) = -c_max * ( u(k,j,nx) - u_m_r(k,j,nx) ) / ( denom * tsc(2) ) |
---|
865 | IF ( c_u(k,j) < 0.0_wp ) THEN |
---|
866 | c_u(k,j) = 0.0_wp |
---|
867 | ELSEIF ( c_u(k,j) > c_max ) THEN |
---|
868 | c_u(k,j) = c_max |
---|
869 | ENDIF |
---|
870 | ELSE |
---|
871 | c_u(k,j) = c_max |
---|
872 | ENDIF |
---|
873 | |
---|
874 | denom = v_m_r(k,j,nx) - v_m_r(k,j,nx-1) |
---|
875 | |
---|
876 | IF ( denom /= 0.0_wp ) THEN |
---|
877 | c_v(k,j) = -c_max * ( v(k,j,nx) - v_m_r(k,j,nx) ) / ( denom * tsc(2) ) |
---|
878 | IF ( c_v(k,j) < 0.0_wp ) THEN |
---|
879 | c_v(k,j) = 0.0_wp |
---|
880 | ELSEIF ( c_v(k,j) > c_max ) THEN |
---|
881 | c_v(k,j) = c_max |
---|
882 | ENDIF |
---|
883 | ELSE |
---|
884 | c_v(k,j) = c_max |
---|
885 | ENDIF |
---|
886 | |
---|
887 | denom = w_m_r(k,j,nx) - w_m_r(k,j,nx-1) |
---|
888 | |
---|
889 | IF ( denom /= 0.0_wp ) THEN |
---|
890 | c_w(k,j) = -c_max * ( w(k,j,nx) - w_m_r(k,j,nx) ) / ( denom * tsc(2) ) |
---|
891 | IF ( c_w(k,j) < 0.0_wp ) THEN |
---|
892 | c_w(k,j) = 0.0_wp |
---|
893 | ELSEIF ( c_w(k,j) > c_max ) THEN |
---|
894 | c_w(k,j) = c_max |
---|
895 | ENDIF |
---|
896 | ELSE |
---|
897 | c_w(k,j) = c_max |
---|
898 | ENDIF |
---|
899 | |
---|
900 | c_u_m_l(k) = c_u_m_l(k) + c_u(k,j) |
---|
901 | c_v_m_l(k) = c_v_m_l(k) + c_v(k,j) |
---|
902 | c_w_m_l(k) = c_w_m_l(k) + c_w(k,j) |
---|
903 | |
---|
904 | ENDDO |
---|
905 | ENDDO |
---|
906 | |
---|
907 | #if defined( __parallel ) |
---|
908 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dy, ierr ) |
---|
909 | CALL MPI_ALLREDUCE( c_u_m_l(nzb+1), c_u_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
910 | MPI_SUM, comm1dy, ierr ) |
---|
911 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dy, ierr ) |
---|
912 | CALL MPI_ALLREDUCE( c_v_m_l(nzb+1), c_v_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
913 | MPI_SUM, comm1dy, ierr ) |
---|
914 | IF ( collective_wait ) CALL MPI_BARRIER( comm1dy, ierr ) |
---|
915 | CALL MPI_ALLREDUCE( c_w_m_l(nzb+1), c_w_m(nzb+1), nzt-nzb, MPI_REAL, & |
---|
916 | MPI_SUM, comm1dy, ierr ) |
---|
917 | #else |
---|
918 | c_u_m = c_u_m_l |
---|
919 | c_v_m = c_v_m_l |
---|
920 | c_w_m = c_w_m_l |
---|
921 | #endif |
---|
922 | |
---|
923 | c_u_m = c_u_m / (ny+1) |
---|
924 | c_v_m = c_v_m / (ny+1) |
---|
925 | c_w_m = c_w_m / (ny+1) |
---|
926 | |
---|
927 | ! |
---|
928 | !-- Save old timelevels for the next timestep |
---|
929 | IF ( intermediate_timestep_count == 1 ) THEN |
---|
930 | u_m_r(:,:,:) = u(:,:,nx-1:nx) |
---|
931 | v_m_r(:,:,:) = v(:,:,nx-1:nx) |
---|
932 | w_m_r(:,:,:) = w(:,:,nx-1:nx) |
---|
933 | ENDIF |
---|
934 | |
---|
935 | ! |
---|
936 | !-- Calculate the new velocities |
---|
937 | DO k = nzb+1, nzt+1 |
---|
938 | DO j = nysg, nyng |
---|
939 | u_p(k,j,nx+1) = u(k,j,nx+1) - dt_3d * tsc(2) * c_u_m(k) * & |
---|
940 | ( u(k,j,nx+1) - u(k,j,nx) ) * ddx |
---|
941 | |
---|
942 | v_p(k,j,nx+1) = v(k,j,nx+1) - dt_3d * tsc(2) * c_v_m(k) * & |
---|
943 | ( v(k,j,nx+1) - v(k,j,nx) ) * ddx |
---|
944 | |
---|
945 | w_p(k,j,nx+1) = w(k,j,nx+1) - dt_3d * tsc(2) * c_w_m(k) * & |
---|
946 | ( w(k,j,nx+1) - w(k,j,nx) ) * ddx |
---|
947 | ENDDO |
---|
948 | ENDDO |
---|
949 | |
---|
950 | ! |
---|
951 | !-- Bottom boundary at the outflow |
---|
952 | IF ( ibc_uv_b == 0 ) THEN |
---|
953 | u_p(nzb,:,nx+1) = 0.0_wp |
---|
954 | v_p(nzb,:,nx+1) = 0.0_wp |
---|
955 | ELSE |
---|
956 | u_p(nzb,:,nx+1) = u_p(nzb+1,:,nx+1) |
---|
957 | v_p(nzb,:,nx+1) = v_p(nzb+1,:,nx+1) |
---|
958 | ENDIF |
---|
959 | w_p(nzb,:,nx+1) = 0.0_wp |
---|
960 | |
---|
961 | ! |
---|
962 | !-- Top boundary at the outflow |
---|
963 | IF ( ibc_uv_t == 0 ) THEN |
---|
964 | u_p(nzt+1,:,nx+1) = u_init(nzt+1) |
---|
965 | v_p(nzt+1,:,nx+1) = v_init(nzt+1) |
---|
966 | ELSE |
---|
967 | u_p(nzt+1,:,nx+1) = u_p(nzt,:,nx+1) |
---|
968 | v_p(nzt+1,:,nx+1) = v_p(nzt,:,nx+1) |
---|
969 | ENDIF |
---|
970 | w_p(nzt:nzt+1,:,nx+1) = 0.0_wp |
---|
971 | |
---|
972 | ENDIF |
---|
973 | |
---|
974 | ENDIF |
---|
975 | |
---|
976 | END SUBROUTINE boundary_conds |
---|