define_bc_parallipipede.f90

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!              DEFINE_BC_SPHERE    Apr. 2007                                   |
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subroutine define_bc_parallipipede (nnode,kfix,kfixt,x,y,z,u,v,w,temp,vo) 

!------------------------------------------------------------------------------|
!(((((((((((((((( Purpose of the routine  ))))))))))))))))))))))))))))))))))))))
!------------------------------------------------------------------------------|
! this routine assigns the boundary condition for the Stokes sphere experiment 

!------------------------------------------------------------------------------|
!((((((((((((((((  declaration of the subroutine arguments  ))))))))))))))))))))
!------------------------------------------------------------------------------|

use definitions

implicit none

integer nnode
integer kfix(nnode*3)
integer kfixt(nnode)
double precision x(nnode),y(nnode),z(nnode)
double precision u(nnode),v(nnode),w(nnode)
double precision temp(nnode)
type (void) vo

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!(((((((((((((((( declaration of the subroutine internal variables )))))))))))))
!------------------------------------------------------------------------------|

integer i
double precision eps

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!------------------------------------------------------------------------------|

eps=1.d-10

do i=1,nnode
   if (x(i).lt.eps) then
      kfix((i-1)*3+1)=1 ; u(i)=0.d0
      kfix((i-1)*3+2)=0 ; v(i)=0.d0
      kfix((i-1)*3+3)=0 ; w(i)=0.d0
   endif
   if (x(i).gt.1.d0-eps) then
!      kfix((i-1)*3+1)=1 ; u(i)=0.d0
      if (y(i).ge.0.5667 .and. y(i).le.0.7667) then
     kfix((i-1)*3+1)=1 ; u(i)=-2.8d-1
      end if
!      kfix((i-1)*3+3)=1 ; w(i)=0.d0
   endif
   if (y(i).lt.eps) then
!      kfix((i-1)*3+1)=1 ; u(i)=0.d0
      kfix((i-1)*3+2)=1 ; v(i)=0.d0
!      kfix((i-1)*3+3)=1 ; w(i)=0.d0
   endif
   if (y(i).gt.1.d0-eps) then
!      kfix((i-1)*3+1)=1 ; u(i)=0.d0
      kfix((i-1)*3+2)=1 ; v(i)=0.d0
!      kfix((i-1)*3+3)=1 ; w(i)=0.d0
   endif
   if (z(i).lt.eps) then
!      kfix((i-1)*3+1)=1 ; u(i)=0.d0
!      kfix((i-1)*3+2)=1 ; v(i)=0.d0
      kfix((i-1)*3+3)=1 ; w(i)=0.d0
      kfixt(i)=1
      temp(i)=1.d0
   endif
   if (z(i).gt.1.d0-eps) then
      kfix((i-1)*3+1)=1 ; u(i)=0.d0
!      kfix((i-1)*3+2)=1 ; v(i)=0.d0
!      kfix((i-1)*3+3)=1 ; w(i)=0.d0
      kfixt(i)=1
      temp(i)=0.d0
   endif
   if (.not.vo%influid(i)) then
      kfixt(i)=1
      temp(i)=0.d0
   endif
end do

return
end

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