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!MNH_LIC Copyright 1994-2013 CNRS, Meteo-France and Universite Paul Sabatier
!MNH_LIC This is part of the Meso-NH software governed by the CeCILL-C licence
!MNH_LIC version 1. See LICENCE, CeCILL-C_V1-en.txt and CeCILL-C_V1-fr.txt
!MNH_LIC for details. version 1.
!-----------------------------------------------------------------
!--------------- special set of characters for RCS information
!-----------------------------------------------------------------
! $Source$ $Revision$
! MASDEV4_7 chimie 2006/05/18 13:07:25
!-----------------------------------------------------------------
!########################
MODULE MODI_CH_BOUNDARIES
!########################
!
INTERFACE
!
SUBROUTINE CH_BOUNDARIES (HLBCX,HLBCY, &
!
CHARACTER(LEN=4), DIMENSION(2), INTENT(IN) :: HLBCX,HLBCY
REAL, DIMENSION(:,:,:), INTENT(IN) :: PUT,PVT
!
END SUBROUTINE CH_BOUNDARIES
!
END INTERFACE
!
END MODULE MODI_CH_BOUNDARIES
!
!
! ####################################################################
SUBROUTINE CH_BOUNDARIES (HLBCX,HLBCY, &
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! ####################################################################
!
!!**** *CH_BOUNDARIES* - routine to prepare the Lateral Boundary Conditions for
!! scalar variables at a scalar localization relative to the
!! considered boundary.
!!
!! PURPOSE
!! -------
!
!!** METHOD
!! ------
!! Only for 'OPEN' case Boundary Condition type
!!
!! EXTERNAL
!! --------
!! GET_INDICE_ll : get physical sub-domain bounds
!! LWEAST_ll,LEAST_ll,LNORTH_ll,LSOUTH_ll : position functions
!!
!! IMPLICIT ARGUMENTS
!! ------------------
!! Module MODD_PARAMETERS :
!! JPHEXT ,JPVEXT
!!
!! Module MODD_CONF :
!! CCONF
!!
!! REFERENCE
!! ---------
!!
!! AUTHOR
!! ------
!! P. Tulet * LA *
!!
!! MODIFICATIONS
!! -------------
!! Original 06/06/00
!! 06/06/00 (C. Mari) embedded into mesonh routines
!! 15/02/01 (P. Tulet) update for MOCAGE lateral boundary conditions
!!
!-------------------------------------------------------------------------------
!
!* 0. DECLARATIONS
!
USE MODD_PARAMETERS
USE MODD_CONF
USE MODD_GRID_n, ONLY : XZZ
!
!
USE MODE_ll
!
IMPLICIT NONE
!
!
!* 0.1 declarations of arguments
!
!
CHARACTER(LEN=4), DIMENSION(2), INTENT(IN) :: HLBCX,HLBCY
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REAL, DIMENSION(:,:,:), INTENT(IN) :: PUT,PVT
!
!
!
!* 0.2 declarations of local variables
!
REAL, SAVE, DIMENSION(:,:,:), ALLOCATABLE :: ZZZS, ZZZN, ZZZW, ZZZE
INTEGER, SAVE, DIMENSION(:,:,:), ALLOCATABLE :: IZZW, IZZE, IZZS, IZZN
INTEGER :: II,IJ,IK,IKK ! loop index for LS Scalar Variable
INTEGER :: IIU,IJU,IKU ! array size in first, second and third dimensions
INTEGER :: IIB,IIE,IJB,IJE! index values for the Beginning or the End
! of the physical domain in x and y directions
INTEGER :: IKB, IKE
LOGICAL, SAVE :: GFIRSTCALLS = .TRUE.
LOGICAL, SAVE :: GFIRSTCALLN = .TRUE.
LOGICAL, SAVE :: GFIRSTCALLW = .TRUE.
LOGICAL, SAVE :: GFIRSTCALLE = .TRUE.
REAL :: ZZZ
!
!* 1. COMPUTE DIMENSIONS OF ARRAYS AND OTHER INDICES:
! ----------------------------------------------
CALL GET_INDICE_ll (IIB,IJB,IIE,IJE)
IKB = 1 + JPVEXT
IKE = SIZE(PUT,3) - JPVEXT
IIU = SIZE(PUT,1)
IJU = SIZE(PUT,2)
IKU = SIZE(PUT,3)
!
IF (LWEST_ll()) THEN
IF (.NOT.(ALLOCATED(ZZZW))) ALLOCATE(ZZZW(1,IJU,IKU))
IF (.NOT.(ALLOCATED(IZZW))) ALLOCATE(IZZW(1,IJU,IKU))
END IF
IF (LEAST_ll()) THEN
IF (.NOT.(ALLOCATED(ZZZE))) ALLOCATE(ZZZE(1,IJU,IKU))
IF (.NOT.(ALLOCATED(IZZE))) ALLOCATE(IZZE(1,IJU,IKU))
END IF
IF (LNORTH_ll()) THEN
IF (.NOT.(ALLOCATED(ZZZN))) ALLOCATE(ZZZN(IIU,1,IKU))
IF (.NOT.(ALLOCATED(IZZN))) ALLOCATE(IZZN(IIU,1,IKU))
END IF
IF (LSOUTH_ll()) THEN
IF (.NOT.(ALLOCATED(ZZZS))) ALLOCATE(ZZZS(IIU,1,IKU))
IF (.NOT.(ALLOCATED(IZZS))) ALLOCATE(IZZS(IIU,1,IKU))
END IF
!
!-------------------------------------------------------------------------------
!
!* LBC FILLING IN THE X DIRECTION (LEFT WEST SIDE):
! ------------------------------------------------
!
IF (LWEST_ll( ) .AND. HLBCX(1)=='OPEN') THEN
!
IF (GFIRSTCALLW) THEN
!
GFIRSTCALLW = .FALSE.
ZZZW(1,:,:)= -999.
IZZW(1,:,:)= 0
!
DO IJ= IJB,IJE
DO IK= IKB,IKE
ZZZ=XZZ(IIB-1,IJ,IK)
DO IKK=IKB,IKE
IF ((ZZZ.GT.XZZ(IIB+1,IJ,IKK)).AND. &
(ZZZ.LT.XZZ(IIB+1,IJ,IKK+1))) THEN
ZZZW(1,IJ,IK)= &
(ZZZ - XZZ(IIB+1,IJ,IKK)) / &
(XZZ(IIB+1,IJ,IKK+1)-XZZ(IIB+1,IJ,IKK))
IZZW(1,IJ,IK)= IKK
END IF
END DO
END DO
END DO
END IF
!
DO IJ=1, IJU
DO IK= 1,IKU
IF ( PUT(IIB,IJ,IK) <= 0. ) THEN ! OUTFLOW condition
PSVBT(IIB-1,IJ,IK) = &
2.*PSVBT (IIB,IJ,IK) -PSVBT (IIB+1,IJ,IK)
ELSE ! INFLOW condition
IF (ZZZW(1,IJ,IK) > -999.) THEN
PSVBT(IIB-1,IJ,IK) = PSVBT(IIB+1,IJ,IZZW(1,IJ,IK))+&
(PSVBT(IIB+1,IJ,IZZW(1,IJ,IK)+1)-&
PSVBT(IIB+1,IJ,IZZW(1,IJ,IK))) * ZZZW(1,IJ,IK)
!
ELSE
PSVBT(IIB-1,IJ,IK) = PSVBT(IIB+1,IJ,IK)
END IF
END IF
END DO
END DO
END IF
!-------------------------------------------------------------------------------
!
!* LBC FILLING IN THE X DIRECTION (RIGHT EAST SIDE):
! -------------------------------------------------
!
IF (LEAST_ll( ) .AND. HLBCX(1)=='OPEN') THEN
!
IF (GFIRSTCALLE) THEN
!
GFIRSTCALLE = .FALSE.
ZZZE(1,:,:)= -999.
IZZE(1,:,:)= 0
!
DO IJ= IJB,IJE
DO IK= IKB,IKE
ZZZ=XZZ(IIE+1,IJ,IK)
DO IKK=IKB,IKE
IF ((ZZZ.GT.XZZ(IIE-1,IJ,IKK)).AND. &
(ZZZ.LT.XZZ(IIE-1,IJ,IKK+1))) THEN
ZZZE(1,IJ,IK)= &
(ZZZ - XZZ(IIE-1,IJ,IKK)) &
/ ( XZZ(IIE-1,IJ,IKK+1)-XZZ(IIE-1,IJ,IKK))
IZZE(1,IJ,IK)= IKK
END IF
END DO
END DO
END DO
!
END IF
!
DO IJ=1,IJU
DO IK=1,IKU
IF ( PUT(IIE+1,IJ,IK) >= 0. ) THEN ! OUTFLOW condition
PSVBT(IIE+1,IJ,IK) = &
2.*PSVBT (IIE,IJ,IK) -PSVBT (IIE-1,IJ,IK)
ELSE ! INFLOW condition
IF (ZZZE(1,IJ,IK) > -999.) THEN
PSVBT(IIE+1,IJ,IK) = &
PSVBT(IIE-1,IJ,IZZE(1,IJ,IK))+&
(PSVBT(IIE-1,IJ,IZZE(1,IJ,IK)+1)-&
PSVBT(IIE-1,IJ,IZZE(1,IJ,IK))) * ZZZE(1,IJ,IK)
!
ELSE
PSVBT(IIE+1,IJ,IK) = PSVBT(IIE-1,IJ,IK)
END IF
END IF
END DO
END DO
END IF
!-------------------------------------------------------------------------------
!
!* LBC FILLING IN THE Y DIRECTION (BOTTOM SOUTH SIDE):
! ---------------------------------------------------
!
IF (LSOUTH_ll( ) .AND. HLBCY(1)=='OPEN') THEN
!
!
IF (GFIRSTCALLS) THEN
!
GFIRSTCALLS = .FALSE.
ZZZS(:,1,:)= -999.
IZZS(:,1,:)= 0
!
DO II= IIB,IIE
DO IK= IKB,IKE
ZZZ=XZZ(II,IJB-1,IK)
DO IKK=IKB,IKE
IF ((ZZZ.GT.XZZ(II,IJB+1,IKK)).AND.&
(ZZZ.LT.XZZ(II,IJB+1,IKK+1))) THEN
ZZZS(II,1,IK)= &
(ZZZ - XZZ(II,IJB+1,IKK)) / &
(XZZ(II,IJB+1,IKK+1)-XZZ(II,IJB+1,IKK))
IZZS(II,1,IK)= IKK
END IF
END DO
END DO
END DO
!
END IF
!
DO II=1,IIU
DO IK=1,IKU
IF ( PVT(II,IJB,IK) <= 0. ) THEN ! OUTFLOW condition
PSVBT(II,IJB-1,IK) = &
2.*PSVBT (II,IJB,IK) -PSVBT (II,IJB+1,IK)
ELSE ! INFLOW condition
IF (ZZZS(II,1,IK) > -999.) THEN
PSVBT(II,IJB-1,IK) = &
PSVBT(II,IJB+1,IZZS(II,1,IK))+&
(PSVBT(II,IJB+1,IZZS(II,1,IK)+1)-&
PSVBT(II,IJB+1,IZZS(II,1,IK))) * ZZZS(II,1,IK)
!
ELSE
PSVBT(II,IJB-1,IK) = PSVBT(II,IJB+1,IK)
END IF
END IF
END DO
END DO
!
END IF
!-------------------------------------------------------------------------------
!
!* LBC FILLING IN THE Y DIRECTION (TOP NORTH SIDE):
! ------------------------------------------------
!
IF (LNORTH_ll( ) .AND. HLBCY(2)=='OPEN') THEN
!
!
IF (GFIRSTCALLN) THEN
!
GFIRSTCALLN = .FALSE.
ZZZN(:,1,:)= -999.
IZZN(:,1,:)= 1
!
DO II= IIB,IIE
DO IK= IKB,IKE
ZZZ=XZZ(II,IJE+1,IK)
DO IKK=IKB,IKE
IF ((ZZZ.GT.XZZ(II,IJE-1,IKK)).AND. &
(ZZZ.LT.XZZ(II,IJE-1,IKK+1))) THEN
ZZZN(II,1,IK)= &
(ZZZ - XZZ(II,IJE-1,IKK)) / &
( XZZ(II,IJE-1,IKK+1)-XZZ(II,IJE-1,IKK))
IZZN(II,1,IK)= IKK
END IF
END DO
END DO
END DO
!
END IF
!
DO II=1,IIU
DO IK=1,IKU
IF ( PVT(II,IJE+1,IK) >= 0. ) THEN ! OUTFLOW condition
PSVBT(II,IJE+1,IK) = &
2.*PSVBT (II,IJE,IK) -PSVBT (II,IJE-1,IK)
ELSE ! INFLOW condition
IF (ZZZN(II,1,IK) > -999.) THEN
PSVBT(II,IJE+1,IK) = &
PSVBT(II,IJE-1,IZZN(II,1,IK))+&
(PSVBT(II,IJE-1,IZZN(II,1,IK)+1)-&
PSVBT(II,IJE-1,IZZN(II,1,IK))) * ZZZN(II,1,IK)
!
ELSE
PSVBT(II,IJE+1,IK) = PSVBT(II,IJE-1,IK)
END IF
END IF
END DO
END DO
END IF
!
!-------------------------------------------------------------------------------
!
END SUBROUTINE CH_BOUNDARIES