ebcvit5.F

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!||====================================================================
!||    ebcvit5    ../engine/source/boundary_conditions/ebcs/ebcvit5.F
!||--- called by ------------------------------------------------------
!||    ebcclap    ../engine/source/boundary_conditions/ebcs/ebcclap.f
!||--- uses       -----------------------------------------------------
!||    ebcs_mod   ../common_source/modules/boundary_conditions/ebcs_mod.F90
!||====================================================================
      SUBROUTINE ebcvit5(V, A, LISTE, NOD, FV, RESO, LA, EBCS)
      USE ebcs_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-----------------------------------------------
#include      "com08_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER LISTE(*),NOD
      my_real
     .       v(3,*),a(3,*),la(3,nod),reso(3,nod),fv(*)
      TYPE(t_ebcs_normv), INTENT(IN) :: EBCS
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I,N,IVIMP
      my_real
     .     c,lcar,alp,alpdt,ax,ay,az,vimp,v0(3),fac
C
      ivimp=ebcs%ivimp
      IF(ivimp>0)THEN
        vimp=ebcs%vimp*fv(ivimp)
      ELSE
        vimp=ebcs%vimp
      ENDIF
      c=ebcs%c
      lcar=ebcs%lcar
      alp=zero
      IF(lcar>zero)alp=c/lcar
      alpdt=alp*dt1
C
      IF(tt==zero)THEN
            DO i=1,nod
              n=liste(i)
              reso(1,i)=a(1,n)
              reso(2,i)=a(2,n)
              reso(3,i)=a(3,n)
            ENDDO
      ENDIF
C
      IF(alp>zero)THEN
        DO i=1,nod
          n=liste(i)
c          write(6,*)'ebcvit5 N',N,' RESO',RESO(3,I),'A',A(3,N)
          ax=reso(1,i)+alpdt*(a(1,n)-reso(1,i))
          ay=reso(2,i)+alpdt*(a(2,n)-reso(2,i))
          az=reso(3,i)+alpdt*(a(3,n)-reso(3,i))
C memorisation de la reaction
          reso(1,i)=ax
          reso(2,i)=ay
          reso(3,i)=az
C
          fac=vimp/sqrt(la(1,i)**2+la(2,i)**2+la(3,i)**2)
          v0(1)=fac*la(1,i)
          v0(2)=fac*la(2,i)
          v0(3)=fac*la(3,i)
C
          a(1,n)=a(1,n)-ax+alp*(v0(1)-v(1,n))
          a(2,n)=a(2,n)-ay+alp*(v0(2)-v(2,n))
          a(3,n)=a(3,n)-az+alp*(v0(3)-v(3,n))
        ENDDO
      ELSE
        DO i=1,nod
          n=liste(i)
          fac=vimp/sqrt(la(1,i)**2+la(2,i)**2+la(3,i)**2)
          v0(1)=fac*la(1,i)
          v0(2)=fac*la(2,i)
          v0(3)=fac*la(3,i)
          a(1,n)=zero
          a(2,n)=zero
          a(3,n)=zero
          v(1,n)=v0(1)
          v(2,n)=v0(2)
          v(3,n)=v0(3)
        ENDDO      
      ENDIF
      RETURN
      END