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define_bc_3Dpunch.f90 5.22 KiB
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  • !------------------------------------------------------------------------------|
    !------------------------------------------------------------------------------|
    !                                                                              |
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    !              ||     ||   //==\\   ||  ||   //==||  ||/==\\                   |
    !              ||     ||  ||    ||  ||  ||  ||   ||  ||    ||                  |
    !              ||    //   ||    ||  ||  ||  ||   ||  ||                        |
    !              ||===//     \\==//    \\==\\  \\==\\  ||                        |
    !                                                                              |
    !------------------------------------------------------------------------------|
    !------------------------------------------------------------------------------|
    !                                                                              |
    !              DEFINE_BC_3Dpunch    Apr. 2007                                  |
    !                                                                              |
    !------------------------------------------------------------------------------|
    !------------------------------------------------------------------------------|
    
    subroutine define_bc_3Dpunch (nnode,kfix,kfixt,x,y,z,u,v,w,temp,vo) 
    
    !------------------------------------------------------------------------------|
    !(((((((((((((((( Purpose of the routine  ))))))))))))))))))))))))))))))))))))))
    !------------------------------------------------------------------------------|
    ! this routine assigns the boundary condition in the case of a square, 
    ! rectangular, or circular punch
    
    !------------------------------------------------------------------------------|
    !((((((((((((((((  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
    
    !------------------------------------------------------------------------------|
    !(((((((((((((((( declaration of the subroutine internal variables )))))))))))))
    !------------------------------------------------------------------------------|
    
    integer i
    double precision eps,square_size,rect_x_size,rect_y_size,circle_radius
    double precision imposed_velocity
    logical circle_punch
    logical square_punch
    logical rect_punch
    logical rough
    
    !------------------------------------------------------------------------------|
    !------------------------------------------------------------------------------|
    
    rough=.true.
    
    square_punch = .true.
    square_size = 0.15d0
    
    rect_punch=.false.
    rect_x_size =  0.06d0
    rect_y_size =  0.08d0
    
    circle_punch=.false.
    circle_radius = 0.05d0
    
    imposed_velocity=1.05d0
    
    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)=1 ; v(i)=0.d0
          kfix((i-1)*3+3)=1 ; w(i)=0.d0
       endif
       if (x(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 (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
          if (square_punch) then
             if ((x(i)-(.5d0-.5d0*square_size))*(x(i)-(.5d0+.5d0*square_size)).le.0.d0 .and. &
                 (y(i)-(.5d0-.5d0*square_size))*(y(i)-(.5d0+.5d0*square_size)).le.0.d0 ) then 
                if (rough) then
                   kfix((i-1)*3+1)=1 ; u(i)=0.d0
                   kfix((i-1)*3+2)=1 ; v(i)=0.d0
                end if
                kfix((i-1)*3+3)=1 ; w(i)=imposed_velocity
             endif
          endif
          if (rect_punch) then
             if ((x(i)-(.5d0-.5d0*rect_x_size))*(x(i)-(.5d0+.5d0*rect_x_size)).le.0.d0 .and. &
                 (y(i)-(.5d0-.5d0*rect_y_size))*(y(i)-(.5d0+.5d0*rect_y_size)).le.0.d0 ) then 
                if (rough) then
                   kfix((i-1)*3+1)=1 ; u(i)=0.d0
                   kfix((i-1)*3+2)=1 ; v(i)=0.d0
                end if
                kfix((i-1)*3+3)=1 ; w(i)=imposed_velocity
             endif
          endif
          if (circle_punch) then
             if (sqrt((x(i)-.5d0)**2+(y(i)-.5d0)**2).le.circle_radius) then
                if (rough) then
                   kfix((i-1)*3+1)=1 ; u(i)=0.d0
                   kfix((i-1)*3+2)=1 ; v(i)=0.d0
                end if
                kfix((i-1)*3+3)=1 ; w(i)=imposed_velocity
             endif
          endif
          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
    enddo
    
    return
    end
    
    !-------------------------------------------------------------------------------
    !-------------------------------------------------------------------------------