centrifugal_source_term_cpu.f90

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module centrifugal_source_term_cpu
  use num_types, only : rp
  use field_list, only : field_list_t
  use math, only : vcross
  use field, only : field_t
  use dofmap, only : dofmap_t
  implicit none
  private
 
  public :: centrifugal_source_term_compute_cpu
 
contains
 
  subroutine centrifugal_source_term_compute_cpu(omega, ref_point, fields)
    real(kind=rp), intent(in) :: omega(3)
    real(kind=rp), intent(in) :: ref_point(3)
    type(field_list_t), intent(inout) :: fields
    type(dofmap_t), pointer :: dof
    integer :: i, n
    type(field_t), pointer :: fu, fv, fw
    real(kind=rp) :: rx, ry, rz, cx, cy, cz
 
    dof => fields%dof(1)
    n = fields%item_size(1)
 
    fu => fields%get_by_index(1)
    fv => fields%get_by_index(2)
    fw => fields%get_by_index(3)
 
    do concurrent(i = 1:n)
       ! displacement with respect to reference point
       rx = dof%x(i,1,1,1) - ref_point(1)
       ry = dof%y(i,1,1,1) - ref_point(2)
       rz = dof%z(i,1,1,1) - ref_point(3)
 
       ! Omega x r
       cx = (omega(2) * rz - omega(3) * ry)
       cy = (omega(3) * rx - omega(1) * rz)
       cz = (omega(1) * ry - omega(2) * rx)
 
       ! - Omega x ( Omega x r)
       fu%x(i,1,1,1) = fu%x(i,1,1,1) - (omega(2) * cz - omega(3) * cy)
       fv%x(i,1,1,1) = fv%x(i,1,1,1) - (omega(3) * cx - omega(1) * cz)
       fw%x(i,1,1,1) = fw%x(i,1,1,1) - (omega(1) * cy - omega(2) * cx)
    end do
 
  end subroutine centrifugal_source_term_compute_cpu
 
end module centrifugal_source_term_cpu