[4] | 1 | !> \file dragging_calc_beta_mod.f90 |
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| 2 | !! Module qui calcule le beta a partir de vitesses de bilan |
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| 3 | !< |
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| 4 | |
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| 5 | !> \namespace dragging_calc_beta |
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| 6 | !! Calcule le beta a partir de vitesses de bilan |
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| 7 | !! @note Il faut partir d'un cptr. |
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| 8 | !! \author Cat |
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| 9 | !! \date august 2010 |
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| 10 | !! @note Used module |
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| 11 | !! @note - use module3D_phy |
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| 12 | !< |
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| 13 | |
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| 14 | module dragging_calc_beta |
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| 15 | |
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| 16 | ! Calcule le beta a partir de vitesses de bilan |
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| 17 | ! il faut partir d'un cptr (pour avoir un bon champ de temperature) |
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| 18 | |
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| 19 | |
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| 20 | |
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| 21 | use module3d_phy |
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| 22 | use interface_input |
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| 23 | |
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| 24 | implicit none |
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| 25 | |
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| 26 | logical, dimension(nx,ny) :: gz_centre !< stream on major node |
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| 27 | real, dimension(nx,ny) :: Vcol_x !< vertically averaged velocity along x (balance) |
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| 28 | real, dimension(nx,ny) :: Vcol_y !< vertically averaged velocity along y (balance) |
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| 29 | |
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| 30 | real, dimension(nx,ny) :: Vsl_x !<sliding velocity x direction (balance) |
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| 31 | real, dimension(nx,ny) :: Vsl_y !<sliding velocity y direction (balance) |
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| 32 | |
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| 33 | real, dimension(nx,ny) :: Vcol2 !< square of vertically averaged velocity norme on major nodes (balance) |
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| 34 | ! real, dimension(nx,ny) :: beta_centre ! beta on major node (average) declare dans 3D |
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| 35 | real :: beta_limgz !< when beta gt beta_limgz -> not gzmx |
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| 36 | real :: beta_bord !< for the sides of ice streams |
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| 37 | real :: ubil_limgz !< when ubil < ubil_limgz -> not gzmx |
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| 38 | real :: coefbeta !< coefficient to ajust beta |
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| 39 | real :: ecart_quad !< somme of quadratic difference |
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| 40 | real :: umag2 !< square of veloc. at major node |
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| 41 | integer :: stagger= 0 !< iteration based on centered (stagger = 0) |
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| 42 | !< stagg nodes (stagger = 1) |
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| 43 | !< or redistributed (stagger = 2) |
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| 44 | logical :: corr_def = .true. !< for deformation correction |
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| 45 | |
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| 46 | |
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| 47 | contains |
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| 48 | !----------------------------------------------------------------------------------- |
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| 49 | subroutine init_dragging ! Cette routine fait l'initialisation du dragging. |
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| 50 | |
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| 51 | implicit none |
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| 52 | |
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| 53 | if (itracebug.eq.1) call tracebug(' Calc_beta subroutine init_dragging') |
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| 54 | mstream_mx(:,:)=1 ! autorise streams partout |
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| 55 | mstream_my(:,:)=1 |
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| 56 | |
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| 57 | beta_limgz=5.e5 ! au dela duquel on considere pas de glissement |
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| 58 | beta_bord= 1000. ! pour regler des problemes a la cote |
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| 59 | ubil_limgz=.1 |
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| 60 | |
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| 61 | ! coefficient permettant de modifier le basal drag. |
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| 62 | drag_mx(:,:)=1. |
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| 63 | drag_my(:,:)=1. |
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| 64 | |
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| 65 | call lect_vitbil |
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| 66 | |
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| 67 | iter_beta = 1 |
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| 68 | iter_loop : if (iter_beta.eq.1) then ! pour calculer initial guess de beta a partir de vitesses |
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| 69 | |
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| 70 | betamx(:,:)=0 |
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| 71 | betamy(:,:)=0 |
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| 72 | beta_centre(:,:)=0. |
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| 73 | coefbeta=5. |
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| 74 | betamax = beta_limgz |
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| 75 | |
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| 76 | call gzm_betacalc ! determine flgzmx, ... |
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| 77 | |
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| 78 | else if (iter_beta.eq.0) then ! pour calculer les vitesses dynamiques deduites de iter_beta=1 |
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| 79 | call gzm_betacalc ! determine flgzmx, ... |
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| 80 | |
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| 81 | betamx(:,:) = max(0., betamx(:,:)) ! enleve les beta negatifs |
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| 82 | betamy(:,:) = max(0., betamy(:,:)) |
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| 83 | |
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| 84 | else if (iter_beta.eq.2) then ! pour partir d'un beta uniforme, (ne marche pas) |
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| 85 | |
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| 86 | betamx(:,:)=0 ! pour les tests gzm_betaclac |
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| 87 | betamy(:,:)=0 |
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| 88 | |
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| 89 | call gzm_betacalc ! determine flgzmx, ... |
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| 90 | |
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| 91 | betamx(:,:)=1.e5 |
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| 92 | betamy(:,:)=1.e5 |
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| 93 | beta_centre(:,:)=0. |
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| 94 | coefbeta=10. |
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| 95 | |
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| 96 | else if (iter_beta.eq.3) then ! iteration Arthern en partant d'un champ lu |
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| 97 | |
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| 98 | call lect_beta_stag |
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| 99 | call average_beta_centr |
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| 100 | call distribute_stag_beta ! averaging with minimum value |
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| 101 | call gzm_betacalc ! determine flgzmx, ... |
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| 102 | |
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| 103 | coefbeta=1.e-3 |
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| 104 | |
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| 105 | end if iter_loop |
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| 106 | |
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| 107 | return |
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| 108 | |
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| 109 | end subroutine init_dragging |
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| 110 | |
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| 111 | |
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| 112 | !------------------------------------------------------------------------- |
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| 113 | subroutine dragging ! defini la localisation des streams et le frottement basal |
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| 114 | |
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| 115 | implicit none |
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| 116 | |
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| 117 | |
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| 118 | if (itracebug.eq.1) call tracebug(' Subroutine dragging calc beta') |
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| 119 | if (itracebug.eq.1) write(num_tracebug,*)' Dragging_calc_beta: iter=',iter_beta, & |
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| 120 | ' corr_def=',corr_def |
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| 121 | call gzm_betacalc |
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| 122 | |
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| 123 | |
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| 124 | if (iter_beta.eq.1) then |
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| 125 | betamx(:,:)=0. |
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| 126 | betamy(:,:)=0. |
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| 127 | |
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| 128 | else if ((iter_beta.eq.0).and.(corr_def)) then |
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| 129 | call correct_from_def |
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| 130 | call gzm_betacalc |
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| 131 | |
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| 132 | else if (iter_beta.gt.1) then ! boucle iterative |
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| 133 | |
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| 134 | call Arthern_like_iter ! update betamx and betamy |
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| 135 | iter_beta=iter_beta+1 |
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| 136 | end if |
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| 137 | |
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| 138 | |
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| 139 | |
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| 140 | if (itracebug.eq.1) call tracebug(' Dragging sortie') |
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| 141 | |
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| 142 | return |
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| 143 | end subroutine dragging |
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| 144 | |
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| 145 | !________________________________________________________________________________ |
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| 146 | |
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| 147 | subroutine lect_vitbil |
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| 148 | |
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| 149 | |
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| 150 | character(len=100) :: balance_Ux_file ! balance velocity file Ux |
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| 151 | character(len=100) :: balance_Uy_file ! balance velocity file Uy |
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| 152 | |
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| 153 | namelist/vitbil_upwind/balance_Ux_file, balance_Uy_file |
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| 154 | |
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| 155 | if (itracebug.eq.1) call tracebug(' Subroutine lect_vitbil de calc_beta') |
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| 156 | |
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| 157 | ! lecture des parametres du run |
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| 158 | !-------------------------------------------------------------------- |
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| 159 | |
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| 160 | rewind(num_param) ! pour revenir au debut du fichier param_list.dat |
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| 161 | 428 format(A) |
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| 162 | read(num_param,vitbil_upwind) |
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| 163 | |
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| 164 | write(num_rep_42,428) '!___________________________________________________________' |
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| 165 | write(num_rep_42,428) '!read balance velocities on staggered grid' |
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| 166 | write(num_rep_42,vitbil_upwind) |
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| 167 | write(num_rep_42,428) '! balance_Ux_file : nom du fichier qui contient les vit. bilan Ux' |
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| 168 | write(num_rep_42,428) '! balance_Uy_file : nom du fichier qui contient les vit. bilan Uy' |
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| 169 | write(num_rep_42,*) |
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| 170 | |
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| 171 | ! read balance velocities on staggered nodes |
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| 172 | |
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| 173 | balance_Ux_file = trim(dirnameinp)//trim(balance_Ux_file) |
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| 174 | balance_Uy_file = trim(dirnameinp)//trim(balance_Uy_file) |
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| 175 | |
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| 176 | call lect_input(1,'Vcol_x',1,Vcol_x,balance_Ux_file,"") |
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| 177 | call lect_input(1,'Vcol_y',1,Vcol_y,balance_Uy_file,"") |
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| 178 | |
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| 179 | ! limit the maximum value |
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| 180 | |
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| 181 | Vcol_x(:,:)=max(-3900.,Vcol_x(:,:)) |
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| 182 | Vcol_x(:,:)=min( 3900.,Vcol_x(:,:)) |
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| 183 | Vcol_y(:,:)=max(-3900.,Vcol_y(:,:)) |
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| 184 | Vcol_y(:,:)=min( 3900.,Vcol_y(:,:)) |
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| 185 | |
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| 186 | |
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| 187 | do j=2,ny-1 |
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| 188 | do i=2,nx-1 |
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| 189 | umag2=((Vcol_x(i,j)+Vcol_x(i+1,j))*(Vcol_x(i,j)+Vcol_x(i+1,j))) & ! ux2 |
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| 190 | +((Vcol_y(i,j)+Vcol_y(i,j+1))*(Vcol_y(i,j)+Vcol_y(i,j+1))) ! uy2 |
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| 191 | Vcol2(i,j) =umag2*0.25 |
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| 192 | end do |
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| 193 | end do |
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| 194 | |
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| 195 | |
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| 196 | debug_3D(:,:,59)=Vcol_x(:,:) |
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| 197 | debug_3D(:,:,60)=Vcol_y(:,:) |
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| 198 | debug_3D(:,:,58)=Vcol2(:,:)**0.5 |
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| 199 | |
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| 200 | end subroutine lect_vitbil |
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| 201 | !__________________________________________________________________________________________ |
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| 202 | subroutine lect_beta_stag |
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| 203 | |
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| 204 | |
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| 205 | character(len=100) :: betamx_file ! betamx file |
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| 206 | character(len=100) :: betamy_file ! betamy file |
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| 207 | |
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| 208 | namelist/beta_stag/betamx_file,betamy_file,beta_limgz |
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| 209 | |
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| 210 | if (itracebug.eq.1) call tracebug(' Subroutine lect__beta_stag de calc_beta') |
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| 211 | |
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| 212 | ! lecture des parametres du run |
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| 213 | !-------------------------------------------------------------------- |
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| 214 | |
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| 215 | rewind(num_param) ! pour revenir au debut du fichier param_list.dat |
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| 216 | 428 format(A) |
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| 217 | read(num_param,beta_stag) |
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| 218 | |
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| 219 | write(num_rep_42,428) '!___________________________________________________________' |
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| 220 | write(num_rep_42,428) '!read beta on staggered grid' |
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| 221 | write(num_rep_42,beta_stag) |
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| 222 | write(num_rep_42,428) '! betamx_file : nom du fichier qui contient les betamx' |
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| 223 | write(num_rep_42,428) '! betamy_file : nom du fichier qui contient les betamy' |
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| 224 | write(num_rep_42,428) '! above beta_limgz, gzmx is false' |
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| 225 | write(num_rep_42,*) |
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| 226 | |
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| 227 | |
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| 228 | call lect_input(1,'betamx',1,betamx,betamx_file,"") |
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| 229 | call lect_input(1,'betamy',1,betamy,betamy_file,"") |
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| 230 | |
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| 231 | ! average on major nodes |
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| 232 | |
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| 233 | beta_centre(:,:)=0. |
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| 234 | do j=2,ny-1 |
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| 235 | do i=2,nx-1 |
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| 236 | beta_centre(i,j)= ((betamx(i,j)+betamx(i+1,j)) & |
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| 237 | + (betamy(i,j)+betamy(i,j+1)))*0.25 |
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| 238 | end do |
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| 239 | end do |
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| 240 | |
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| 241 | end subroutine lect_beta_stag |
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| 242 | !____________________________________________________________________________________ |
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| 243 | subroutine average_beta_centr ! average betamx and betamy on major nodes |
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| 244 | |
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| 245 | do j=2,ny-1 |
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| 246 | do i=2,nx-1 |
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| 247 | beta_centre(i,j) = (betamx(i,j) + betamx(i+1,j)) + (betamy(i,j) + betamy(i,j+1)) |
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| 248 | beta_centre(i,j) = beta_centre(i,j) * 0.25 |
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| 249 | end do |
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| 250 | end do |
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| 251 | end subroutine average_beta_centr |
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| 252 | |
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| 253 | !----------------------------------------------------------------------- |
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| 254 | subroutine distribute_stag_beta ! redistribute on staggered grid |
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| 255 | |
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| 256 | |
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| 257 | if (stagger.eq.0) then ! MIN(betamx,average beta_centr) |
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| 258 | do j=2,ny |
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| 259 | do i=2,nx |
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| 260 | betamx(i,j)= min(betamx(i,j),(beta_centre(i-1,j)+beta_centre(i,j))*0.5) |
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| 261 | betamy(i,j)= min(betamx(i,j),(beta_centre(i,j-1)+beta_centre(i,j))*0.5) |
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| 262 | end do |
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| 263 | end do |
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| 264 | else if (stagger.eq.1) then ! usual average |
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| 265 | do j=2,ny |
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| 266 | do i=2,nx |
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| 267 | betamx(i,j)=(beta_centre(i-1,j)+beta_centre(i,j))*0.5 |
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| 268 | betamy(i,j)=(beta_centre(i,j-1)+beta_centre(i,j))*0.5 |
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| 269 | end do |
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| 270 | end do |
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| 271 | |
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| 272 | else if (stagger.eq.2) then ! MIN(betamx,beta_bord) only on ice streams V> 50 m/year |
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| 273 | |
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| 274 | do j=2,ny |
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| 275 | do i=2,nx |
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| 276 | if (abs(Vcol_x(i,j)).gt.50.) then ! fleuve de glace |
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| 277 | betamx(i,j+1)=min(betamx(i,j+1),beta_bord) |
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| 278 | betamx(i,j-1)=min(betamx(i,j-1),beta_bord) |
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| 279 | betamx(i-1,j)=min(betamx(i-1,j),beta_bord) |
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| 280 | betamx(i+1,j)=min(betamx(i+1,j),beta_bord) |
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| 281 | end if |
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| 282 | if (abs(Vcol_y(i,j)).gt.50.) then ! fleuve de glace |
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| 283 | betamy(i+1,j)=min(betamy(i+1,j),beta_bord) |
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| 284 | betamy(i-1,j)=min(betamy(i-1,j),beta_bord) |
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| 285 | betamy(i,j+1)=min(betamy(i,j+1),beta_bord) |
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| 286 | betamy(i,j-1)=min(betamy(i,j-1),beta_bord) |
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| 287 | end if |
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| 288 | end do |
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| 289 | end do |
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| 290 | end if |
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| 291 | |
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| 292 | end subroutine distribute_stag_beta |
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| 293 | |
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| 294 | !---------------------------------------------------------------------------------- |
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| 295 | subroutine correct_from_def |
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| 296 | |
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| 297 | ! update la cible vitesse pour enlever la deformation |
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| 298 | |
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| 299 | if (itracebug.eq.1) call tracebug(' Subroutine correct_from_def') |
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| 300 | |
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| 301 | !Vsl_x(:,:) = Vcol_x(:,:) - uxdef(:,:) |
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| 302 | !Vsl_y(:,:) = Vcol_y(:,:) - uydef(:,:) |
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| 303 | |
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| 304 | do j = 2, ny |
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| 305 | do i = 2, nx |
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| 306 | if (Vcol_x(i,j).gt.0.) then |
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| 307 | Vsl_x(i,j) = max(0.,Vcol_x(i,j) - uxdef(i,j)) ! si la vitesse de deformation est > vitesse de bilan : pas de glissement |
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| 308 | |
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| 309 | else if (Vcol_x(i,j).lt.0.) then |
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| 310 | Vsl_x(i,j) = min(0.,Vcol_x(i,j) - uxdef(i,j)) |
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| 311 | else |
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| 312 | Vsl_x(i,j) = 0. |
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| 313 | endif |
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| 314 | |
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| 315 | if (Vcol_y(i,j).gt.0.) then |
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| 316 | Vsl_y(i,j) = max(0.,Vcol_y(i,j) - uydef(i,j)) ! si la vitesse de deformation est > vitesse de bilan : pas de glissement |
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| 317 | |
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| 318 | else if (Vcol_y(i,j).lt.0.) then |
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| 319 | Vsl_y(i,j) = min(0.,Vcol_y(i,j) - uydef(i,j)) |
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| 320 | else |
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| 321 | Vsl_y(i,j) = 0. |
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| 322 | endif |
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| 323 | |
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| 324 | end do |
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| 325 | end do |
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| 326 | |
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| 327 | do j = 2, ny-1 |
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| 328 | do i = 2, nx-1 |
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| 329 | debug_3D(:,:,68) = (((Vsl_x(i,j)+Vsl_x(i+1,j))**2 + & |
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| 330 | (Vsl_y(i,j)+Vsl_y(i,j+1))**2)*0.25)**0.5 |
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| 331 | debug_3D(:,:,69) = Vsl_x(i,j) |
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| 332 | debug_3D(:,:,70) = Vsl_y(i,j) |
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| 333 | end do |
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| 334 | end do |
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| 335 | |
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| 336 | end subroutine correct_from_def |
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| 337 | |
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| 338 | subroutine gzm_betacalc |
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| 339 | |
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| 340 | ! calcul de gzmx qui ne sera plus modifie ensuite |
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| 341 | if (itracebug.eq.1) call tracebug(' Subroutine gzm_betacalc') |
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| 342 | |
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| 343 | gzmx(:,:)=.true. |
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| 344 | gzmy(:,:)=.true. |
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| 345 | flgzmx(:,:)=.false. |
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| 346 | flgzmy(:,:)=.false. |
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| 347 | |
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| 348 | |
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| 349 | ! points flottants : flgzmx mais pas gzmx |
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| 350 | do j=2,ny |
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| 351 | do i=2,nx |
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| 352 | if (flot(i,j).and.(flot(i-1,j))) then |
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| 353 | flgzmx(i,j)=.true. |
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| 354 | gzmx(i,j)=.false. |
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| 355 | betamx(i,j)=0. |
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| 356 | flotmx(i,j) = .true. |
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| 357 | end if |
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| 358 | if (flot(i,j).and.(flot(i,j-1))) then |
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| 359 | flgzmy(i,j)=.true. |
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| 360 | gzmy(i,j)=.false. |
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| 361 | betamy(i,j)=0. |
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| 362 | flotmy(i,j) = .true. |
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| 363 | end if |
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| 364 | end do |
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| 365 | end do |
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| 366 | |
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| 367 | where (flot(:,:)) |
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| 368 | beta_centre(:,:)= 0. |
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| 369 | end where |
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| 370 | |
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| 371 | |
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| 372 | !--------- autres criteres |
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| 373 | |
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| 374 | ! points poses |
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| 375 | |
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| 376 | ! limite le calcul elliptique aux points a faible beta |
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| 377 | ! gzmx(:,:)=gzmx(:,:).and.(betamx(:,:).lt.beta_limgz) ! Pas de calcul pour les points |
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| 378 | ! gzmy(:,:)=gzmy(:,:).and.(betamy(:,:).lt.beta_limgz) ! au fort beta |
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| 379 | |
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| 380 | ! pour être sûr d'avoir quelques points "Dirichlet" |
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| 381 | gzmx(:,:)=gzmx(:,:).and.(abs(Vcol_x(:,:)).gt.ubil_limgz) ! Pas de calcul pour les pts lents |
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| 382 | gzmy(:,:)=gzmy(:,:).and.(abs(Vcol_y(:,:)).gt.ubil_limgz) ! Pas de calcul pour les pts lents |
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| 383 | |
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| 384 | |
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| 385 | flgzmx(:,:)=flgzmx(:,:).or.gzmx(:,:) |
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| 386 | flgzmy(:,:)=flgzmy(:,:).or.gzmy(:,:) |
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| 387 | |
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| 388 | gz_centre(:,:)=.false. |
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| 389 | do j=2,ny-1 |
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| 390 | do i=2,nx-1 |
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| 391 | gz_centre(i,j)=gzmx(i,j).or.gzmx(i+1,j).or.gzmy(i,j).or.gzmy(i,j+1) |
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| 392 | end do |
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| 393 | end do |
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| 394 | |
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| 395 | where (flgzmy(:,:)) |
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| 396 | debug_3D(:,:,84)=1 |
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| 397 | elsewhere |
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| 398 | debug_3D(:,:,84)=0 |
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| 399 | endwhere |
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| 400 | |
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| 401 | end subroutine gzm_betacalc |
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| 402 | !____________________________________________ |
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| 403 | |
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| 404 | |
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| 405 | subroutine Arthern_like_iter ! ATTENTION CE BLOC A ETE DEPLACE ET PAS REVALIDE |
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| 406 | |
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| 407 | ! iteration Arthern like sur beta |
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| 408 | !________________________________________ |
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| 409 | ! On part d un beta issus de calc beta et eventuellement lisse par moyenne mobile |
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| 410 | ! |
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| 411 | ! Vcol_x tient le role de solution Dirichlet et uxbar de solution Neumann |
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| 412 | |
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| 413 | |
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| 414 | ecart_quad=0. |
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| 415 | if (iter_beta.ge.4) then |
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| 416 | |
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| 417 | stag: if (stagger.eq.1) then |
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| 418 | do j=2,ny |
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| 419 | do i=2,nx |
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| 420 | if (gzmx(i,j)) then |
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| 421 | betamx(i,j)=betamx(i,j)-coefbeta*(Vcol_x(i,j)*Vcol_x(i,j)-uxbar(i,j)*uxbar(i,j)) |
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| 422 | betamx(i,j)=max(betamx(i,j),0.) |
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| 423 | ecart_quad= ecart_quad & |
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| 424 | + abs(Vcol_x(i,j)*Vcol_x(i,j)-uxbar(i,j)*uxbar(i,j)) |
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| 425 | end if |
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| 426 | if (gzmy(i,j)) then |
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| 427 | betamy(i,j)=betamy(i,j)-coefbeta*(Vcol_y(i,j)*Vcol_y(i,j)-uybar(i,j)*uybar(i,j)) |
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| 428 | betamy(i,j)=max(betamy(i,j),0.) |
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| 429 | ecart_quad= ecart_quad & |
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| 430 | + abs(Vcol_y(i,j)*Vcol_y(i,j)-uybar(i,j)*uybar(i,j)) |
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| 431 | end if |
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| 432 | end do |
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| 433 | end do |
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| 434 | else if (stagger.eq.0) then ! le chemin se fait sur les noeuds centres |
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| 435 | do j=2,ny-1 |
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| 436 | do i=2,nx-1 |
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| 437 | if (gz_centre(i,j)) then |
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| 438 | umag2=((uxbar(i,j)+uxbar(i+1,j))*(uxbar(i,j)+uxbar(i+1,j))) & ! ux2 |
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| 439 | +((uybar(i,j)+uybar(i,j+1))*(uybar(i,j)+uybar(i,j+1))) ! uy2 |
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| 440 | umag2=umag2*0.25 |
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| 441 | |
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| 442 | beta_centre(i,j)=beta_centre(i,j)-coefbeta*(Vcol2(i,j)-umag2) |
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| 443 | beta_centre(i,j)=max(beta_centre(i,j),0.) |
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| 444 | ecart_quad= ecart_quad & |
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| 445 | + abs(Vcol2(i,j)-umag2) |
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| 446 | end if |
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| 447 | end do |
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| 448 | end do |
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| 449 | ! redistribute on staggered grid |
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| 450 | do j=2,ny |
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| 451 | do i=2,nx |
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| 452 | betamx(i,j)= (beta_centre(i-1,j)+beta_centre(i,j))*0.5 |
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| 453 | betamy(i,j)= (beta_centre(i,j-1)+beta_centre(i,j))*0.5 |
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| 454 | end do |
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| 455 | end do |
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| 456 | |
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| 457 | else if (stagger.eq.2) then ! le chemin se fait sur les noeuds centres |
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| 458 | beta_centre(:,:)=0. |
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| 459 | write(6,*) coefbeta |
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| 460 | do j=2,ny-1 |
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| 461 | do i=2,nx-1 |
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| 462 | if (gz_centre(i,j)) then |
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| 463 | umag2=((uxbar(i,j)+uxbar(i+1,j))*(uxbar(i,j)+uxbar(i+1,j))) & ! ux2 |
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| 464 | +((uybar(i,j)+uybar(i,j+1))*(uybar(i,j)+uybar(i,j+1))) ! uy2 |
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| 465 | umag2=umag2*0.25 |
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| 466 | |
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| 467 | beta_centre(i,j)=-coefbeta*(Vcol2(i,j)-umag2) |
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| 468 | beta_centre(i,j)=min(beta_centre(i,j),100.) |
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| 469 | beta_centre(i,j)=max(beta_centre(i,j),-100.) |
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| 470 | ecart_quad= ecart_quad & |
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| 471 | + abs(Vcol2(i,j)-umag2) |
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| 472 | end if |
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| 473 | end do |
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| 474 | end do |
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| 475 | debug_3D(:,:,86)=beta_centre(:,:) |
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| 476 | |
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| 477 | ! redistribute on staggered grid |
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| 478 | do j=2,ny |
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| 479 | do i=2,nx |
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| 480 | betamx(i,j)= betamx(i,j)+((beta_centre(i-1,j)+beta_centre(i,j)) & |
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| 481 | + (beta_centre(i-1,j-1)+beta_centre(i,j-1)) & |
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| 482 | + (beta_centre(i-1,j+1)+beta_centre(i,j+1)))/6. |
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| 483 | |
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| 484 | betamx(i,j)=max(betamx(i,j),0.) |
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| 485 | betamx(i,j)=min(betamx(i,j),beta_limgz) |
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| 486 | |
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| 487 | betamy(i,j)= betamy(i,j)+((beta_centre(i,j-1)+beta_centre(i,j)) & |
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| 488 | + (beta_centre(i-1,j-1)+beta_centre(i-1,j)) & |
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| 489 | + (beta_centre(i+1,j-1)+beta_centre(i+1,j)))/6. |
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| 490 | |
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| 491 | betamy(i,j)=max(betamy(i,j),0.) |
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| 492 | betamy(i,j)=min(betamy(i,j),beta_limgz) |
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| 493 | end do |
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| 494 | end do |
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| 495 | |
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| 496 | else if (stagger.eq.-1) then ! test dramatique ! |
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| 497 | write(6,*) 'stagger', stagger, iter_beta |
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| 498 | do j=2,ny |
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| 499 | do i=2,nx |
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| 500 | if (abs(uxbar(i,j))-abs(Vcol_x(i,j)).lt.-50.) then |
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| 501 | ! write(6,*) i,j, betamx(i,j),betamx(i,j+1), betamx(i,j-1),uxbar(i,j),Vcol_x(i,j) |
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| 502 | betamx(i,j)=min(betamx(i,j),100.) |
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| 503 | ! write(6,*) i,j, betamx(i,j),betamx(i,j+1), betamx(i,j-1) |
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| 504 | endif |
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| 505 | |
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| 506 | if (abs(uybar(i,j))-abs(Vcol_y(i,j)).lt.-50.) then |
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| 507 | betamy(i,j)=min(betamy(i,j),100.) |
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| 508 | endif |
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| 509 | end do |
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| 510 | end do |
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| 511 | do j=2,ny |
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| 512 | do i=2,nx |
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| 513 | if (betamx(i,j).eq.-1) then |
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| 514 | |
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| 515 | betamx(i,j)=100. |
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| 516 | betamx(i,j+1)=200 |
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| 517 | betamx(i,j-1)=200 |
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| 518 | end if |
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| 519 | if (betamy(i,j).eq.-1) then |
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| 520 | betamy(i,j)=100 |
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| 521 | betamy(i+1,j)=200 |
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| 522 | betamy(i-1,j)=200 |
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| 523 | end if |
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| 524 | end do |
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| 525 | end do |
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| 526 | endif stag |
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| 527 | else |
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| 528 | do j=2,ny |
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| 529 | do i=2,nx |
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| 530 | if (gzmx(i,j)) then |
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| 531 | ecart_quad= ecart_quad & |
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| 532 | + abs(Vcol_x(i,j)*Vcol_x(i,j)-uxbar(i,j)*uxbar(i,j)) |
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| 533 | end if |
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| 534 | if (gzmy(i,j)) then |
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| 535 | ecart_quad= ecart_quad & |
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| 536 | + abs(Vcol_y(i,j)*Vcol_y(i,j)-uybar(i,j)*uybar(i,j)) |
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| 537 | end if |
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| 538 | end do |
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| 539 | end do |
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| 540 | end if |
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| 541 | |
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| 542 | |
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| 543 | write(6,*) 'ecart_quad',ecart_quad |
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| 544 | !-------------------------- fin iteration Arthern like-------------------------- |
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| 545 | end subroutine Arthern_like_iter |
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| 546 | |
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| 547 | |
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| 548 | end module dragging_calc_beta |
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| 549 | |
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