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