inflow.f90

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module inflow
  use device_inflow
  use num_types
  use dirichlet, only : dirichlet_t
  use, intrinsic :: iso_c_binding, only : c_ptr, c_loc
  implicit none
  private
 
  type, public, extends(dirichlet_t) :: inflow_t
     real(kind=rp), dimension(3) :: x = (/0d0, 0d0, 0d0 /)
   contains
     procedure, pass(this) :: apply_scalar => inflow_apply_scalar
     procedure, pass(this) :: apply_vector => inflow_apply_vector
     procedure, pass(this) :: apply_scalar_dev => inflow_apply_scalar_dev
     procedure, pass(this) :: apply_vector_dev => inflow_apply_vector_dev
     procedure, pass(this) :: set_inflow => inflow_set_vector
  end type inflow_t
 
contains
 
  subroutine inflow_apply_scalar(this, x, n, t, tstep)
    class(inflow_t), intent(inout) :: this
    integer, intent(in) :: n
    real(kind=rp), intent(inout),  dimension(n) :: x
    real(kind=rp), intent(in), optional :: t
    integer, intent(in), optional :: tstep
  end subroutine inflow_apply_scalar
 
  subroutine inflow_apply_scalar_dev(this, x_d, t, tstep)
    class(inflow_t), intent(inout), target :: this
    type(c_ptr) :: x_d
    real(kind=rp), intent(in), optional :: t
    integer, intent(in), optional :: tstep
  end subroutine inflow_apply_scalar_dev
 
  subroutine inflow_apply_vector(this, x, y, z, n, t, tstep)
    class(inflow_t), intent(inout) :: this
    integer, intent(in) :: n
    real(kind=rp), intent(inout),  dimension(n) :: x
    real(kind=rp), intent(inout),  dimension(n) :: y
    real(kind=rp), intent(inout),  dimension(n) :: z
    real(kind=rp), intent(in), optional :: t
    integer, intent(in), optional :: tstep
    integer :: i, m, k
 
    m = this%msk(0)
    do i = 1, m
       k = this%msk(i)
       x(k) = this%x(1)
       y(k) = this%x(2)
       z(k) = this%x(3)
    end do
  end subroutine inflow_apply_vector
 
  subroutine inflow_apply_vector_dev(this, x_d, y_d, z_d, t, tstep)
    class(inflow_t), intent(inout), target :: this
    type(c_ptr) :: x_d
    type(c_ptr) :: y_d
    type(c_ptr) :: z_d
    real(kind=rp), intent(in), optional :: t
    integer, intent(in), optional :: tstep
 
    call device_inflow_apply_vector(this%msk_d, x_d, y_d, z_d, &
                                    c_loc(this%x), this%msk(0))
 
  end subroutine inflow_apply_vector_dev
 
  subroutine inflow_set_vector(this, x)
    class(inflow_t), intent(inout) :: this
    real(kind=rp), dimension(3), intent(inout) :: x
    this%x = x
  end subroutine inflow_set_vector
 
 
end module inflow