[1] | 1 | SUBROUTINE init_pt_anomaly |
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| 2 | |
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[1036] | 3 | !--------------------------------------------------------------------------------! |
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| 4 | ! This file is part of PALM. |
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| 5 | ! |
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| 6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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| 7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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| 8 | ! either version 3 of the License, or (at your option) any later version. |
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| 9 | ! |
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| 10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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| 12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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| 13 | ! |
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| 14 | ! You should have received a copy of the GNU General Public License along with |
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| 15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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| 16 | ! |
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[1310] | 17 | ! Copyright 1997-2014 Leibniz Universitaet Hannover |
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[1036] | 18 | !--------------------------------------------------------------------------------! |
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| 19 | ! |
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[484] | 20 | ! Current revisions: |
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[1] | 21 | ! ----------------- |
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[1322] | 22 | ! REAL constants defined as wp_kind |
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[1321] | 23 | ! |
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| 24 | ! Former revisions: |
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| 25 | ! ----------------- |
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| 26 | ! $Id: init_pt_anomaly.f90 1322 2014-03-20 16:38:49Z raasch $ |
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| 27 | ! |
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| 28 | ! 1320 2014-03-20 08:40:49Z raasch |
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[1320] | 29 | ! ONLY-attribute added to USE-statements, |
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| 30 | ! kind-parameters added to all INTEGER and REAL declaration statements, |
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| 31 | ! kinds are defined in new module kinds, |
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| 32 | ! revision history before 2012 removed, |
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| 33 | ! comment fields (!:) to be used for variable explanations added to |
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| 34 | ! all variable declaration statements |
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[1] | 35 | ! |
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[1037] | 36 | ! 1036 2012-10-22 13:43:42Z raasch |
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| 37 | ! code put under GPL (PALM 3.9) |
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| 38 | ! |
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[863] | 39 | ! 861 2012-03-26 14:18:34Z suehring |
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| 40 | ! Modification of the amplitude to obtain a visible temperature perturbation. |
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| 41 | ! |
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[1] | 42 | ! Revision 1.1 1997/08/29 08:58:56 raasch |
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| 43 | ! Initial revision |
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| 44 | ! |
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| 45 | ! |
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| 46 | ! Description: |
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| 47 | ! ------------ |
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| 48 | ! Impose a temperature perturbation for an advection test. |
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| 49 | !------------------------------------------------------------------------------! |
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| 50 | |
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[1320] | 51 | USE arrays_3d, & |
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| 52 | ONLY: pt, zu |
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[1] | 53 | |
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[1320] | 54 | USE grid_variables, & |
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| 55 | ONLY: dx, dy |
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| 56 | |
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| 57 | USE indices, & |
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| 58 | ONLY: nbgp, nx, nxl, nxr, nyn, nys, nzb, nzt |
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| 59 | |
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| 60 | USE kinds |
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| 61 | |
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[1] | 62 | IMPLICIT NONE |
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| 63 | |
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[1320] | 64 | INTEGER(iwp) :: i !: |
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| 65 | INTEGER(iwp) :: ic !: |
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| 66 | INTEGER(iwp) :: j !: |
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| 67 | INTEGER(iwp) :: jc !: |
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| 68 | INTEGER(iwp) :: k !: |
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| 69 | INTEGER(iwp) :: kc !: |
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| 70 | |
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| 71 | REAL(wp) :: betrag !: |
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| 72 | REAL(wp) :: radius !: |
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| 73 | REAL(wp) :: rc !: |
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| 74 | REAL(wp) :: x !: |
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| 75 | REAL(wp) :: y !: |
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| 76 | REAL(wp) :: z !: |
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| 77 | |
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[1] | 78 | ! |
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| 79 | !-- Defaults: radius rc, strength z, |
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| 80 | !-- position of centre: ic, jc, kc |
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| 81 | rc = 10.0 * dx |
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| 82 | ic = ( nx+1 ) / 2 |
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| 83 | jc = ic |
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| 84 | kc = nzt / 2 |
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| 85 | |
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| 86 | ! |
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| 87 | !-- Compute the perturbation. |
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| 88 | DO i = nxl, nxr |
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| 89 | DO j = nys, nyn |
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[19] | 90 | DO k = nzb+1, nzt |
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[1] | 91 | x = ( i - ic ) * dx |
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| 92 | y = ( j - jc ) * dy |
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| 93 | z = ABS( zu(k) - zu(kc) ) |
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| 94 | radius = SQRT( x**2 + y**2 + z**2 ) |
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| 95 | IF ( radius <= rc ) THEN |
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[1322] | 96 | betrag = 5.0 * EXP( -( radius * 0.001_wp / 2.0_wp )**2 ) |
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[1] | 97 | ELSE |
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| 98 | betrag = 0.0 |
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| 99 | ENDIF |
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| 100 | |
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| 101 | pt(k,j,i) = pt(k,j,i) + betrag |
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| 102 | |
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| 103 | ENDDO |
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| 104 | ENDDO |
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| 105 | ENDDO |
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| 106 | |
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| 107 | ! |
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| 108 | !-- Exchange of boundary values for temperature |
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[667] | 109 | CALL exchange_horiz( pt, nbgp ) |
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[1] | 110 | |
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| 111 | |
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| 112 | END SUBROUTINE init_pt_anomaly |
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