multi_unplug_neighbors.F

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!||====================================================================
!||    multi_unplug_neighbors   ../starter/source/multifluid/multi_unplug_neighbors.F
!||--- called by ------------------------------------------------------
!||    lectur                   ../starter/source/starter/lectur.F
!||--- calls      -----------------------------------------------------
!||    iface2                   ../starter/source/ale/ale3d/iface.F
!||--- uses       -----------------------------------------------------
!||====================================================================
      SUBROUTINE multi_unplug_neighbors(ALE_CONNECTIVITY, IXS, IXQ, IXTG)
C-----------------------------------------------
C     D e s c r i p t i o n
C-----------------------------------------------
C     In the case where two elements are connected through
C     a Lagrangian face (or edge), that is to say that all nodes of
C     the shared edge are Lagrangian, there is no exchange in terms
C     of convection between this two elements : the face, or edge, has to 
C     be considered as a (moving) sliding wall.
C     Hence, the neighbors in IVOIS are set to zero for corresponding faces, or edges.
C-----------------------------------------------
C     M o d u l e s
C-----------------------------------------------
      USE ale_connectivity_mod
C-----------------------------------------------
C     I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C     C o m m o n   B l o c k s
C-----------------------------------------------
C     NIXS, NIXQ, NIXTG
C     NUMELS, NUMELQ, NUMELTG
#include "com04_c.inc"
C     N2D
#include "com01_c.inc"
C-----------------------------------------------
C     D u m m y   A r g u m e n t s
C-----------------------------------------------
      TYPE(t_ale_connectivity), INTENT(INOUT) :: ALE_CONNECTIVITY
      INTEGER, INTENT(IN) :: IXS(NIXS, *), IXQ(NIXQ, *), IXTG(NIXTG, *)
C-----------------------------------------------
C     L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER :: IELEM, JELEM, KFACE, ELEM_TYPE, KFACE2, IAD, IAD2, LGTH, LGTH2
      INTEGER :: NODELIST(8), FLAGNODE(8), INODE
      INTEGER, DIMENSION(6, 4), TARGET :: HEXA_FACE
      INTEGER, DIMENSION(4, 3), TARGET :: TETRA_FACE
      INTEGER, DIMENSION(:, :), POINTER :: ELEM_FACE
      INTEGER :: NFACE, NFACE_NODE
      !     HEXA
      hexa_face(1, 1) = 1
      hexa_face(1, 2) = 2
      hexa_face(1, 3) = 3
      hexa_face(1, 4) = 4
      hexa_face(2, 1) = 3
      hexa_face(2, 2) = 4
      hexa_face(2, 3) = 8
      hexa_face(2, 4) = 7
      hexa_face(3, 1) = 5
      hexa_face(3, 2) = 6
      hexa_face(3, 3) = 7
      hexa_face(3, 4) = 8
      hexa_face(4, 1) = 1
      hexa_face(4, 2) = 2
      hexa_face(4, 3) = 6
      hexa_face(4, 4) = 5
      hexa_face(5, 1) = 2
      hexa_face(5, 2) = 3
      hexa_face(5, 3) = 7
      hexa_face(5, 4) = 6
      hexa_face(6, 1) = 1
      hexa_face(6, 2) = 4
      hexa_face(6, 3) = 8
      hexa_face(6, 4) = 5
!     TETRA
      tetra_face(1, 1) = 2
      tetra_face(1, 2) = 3
      tetra_face(1, 3) = 7
      tetra_face(2, 1) = 2
      tetra_face(2, 2) = 6
      tetra_face(2, 3) = 4
      tetra_face(3, 1) = 4
      tetra_face(3, 2) = 6
      tetra_face(3, 3) = 7
      tetra_face(4, 1) = 2
      tetra_face(4, 2) = 7
      tetra_face(4, 3) = 6
      IF (n2d == 0) THEN
C     3D case
         DO ielem = 1, numels
            iad = ale_connectivity%ee_connect%iad_connect(ielem)
            lgth = ale_connectivity%ee_connect%iad_connect(ielem+1) - iad
            nodelist(1) = ixs(2, ielem)
            nodelist(2) = ixs(3, ielem)
            nodelist(3) = ixs(4, ielem)
            nodelist(4) = ixs(5, ielem)
            nodelist(5) = ixs(6, ielem)
            nodelist(6) = ixs(7, ielem)
            nodelist(7) = ixs(8, ielem)
            nodelist(8) = ixs(9, ielem)
            flagnode(1:8) = 1
C     DEFAULT ELEM_TYPE = 1 : HEXA
            elem_type = 1
            nface = 6
            nface_node = 4
            elem_face => hexa_face
C     Test if TETRA
            IF ((nodelist(1) == nodelist(2)) .AND. 
     .           (nodelist(3) == nodelist(4)) .AND.
     .           (nodelist(6) == nodelist(7))) THEN
               elem_type = 2
               nface = 4
               nface_node = 3
               elem_face => tetra_face
            ENDIF
            
            DO inode = 1, 8
               IF (ale_connectivity%NALE(nodelist(inode)) == 0) THEN
                  flagnode(inode) = 0
               ENDIF
            ENDDO
            
            DO kface = 1, lgth
              jelem = ale_connectivity%ee_connect%connected(iad + kface - 1)     
              IF (jelem > 0) THEN                                                
                 kface2 = ale_connectivity%ee_connect%iface2(iad + kface - 1)    
                 iad2 = ale_connectivity%ee_connect%iad_connect(jelem)           
                 ale_connectivity%ee_connect%connected(iad2 + kface - 1) = 0     
                 ale_connectivity%ee_connect%iface2(iad2 + kface - 1) = 0        
                 ale_connectivity%ee_connect%connected(iad2 + kface2 - 1) = 0    
                 ale_connectivity%ee_connect%iface2(iad2 + kface2 - 1) = 0       
              ENDIF                                                              
            ENDDO  
         ENDDO
      ELSE
C     2D case
      ENDIF
      END SUBROUTINE multi_unplug_neighbors