Calculate damping functions times normal and derivatives times normal for the PML evaluation.
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
type(tem_pmlLayer_type) | :: | me |
Spacetime function to evaluate |
|||
integer, | intent(in) | :: | ncomp |
Number of entrys in each array |
||
real(kind=rk), | intent(in) | :: | coord(n,3) |
barycentric Ids of an elements. 1st index goes over number of elements and 2nd index goes over x,y,z coordinates |
||
integer, | intent(in) | :: | n |
Number of arrays to return |
return value
function tem_evaluate_pml(me, nComp, coord, n) &
& result(res)
!> Spacetime function to evaluate
type(tem_pmlLayer_type) :: me
!> Number of arrays to return
integer, intent(in) :: n
!> Number of entrys in each array
integer, intent(in) :: ncomp
!> barycentric Ids of an elements.
!! 1st index goes over number of elements and
!! 2nd index goes over x,y,z coordinates
real(kind=rk), intent( in ) :: coord(n,3)
!> return value
real(kind=rk) :: res(n,ncomp)
! ---------------------------------------------------------------------------
integer :: i
real(kind=rk) :: origin(3), normal(3), vec(3), projection
! ---------------------------------------------------------------------------
origin(:) = me%plane_origin
normal(:) = me%plane_normal
select case(ncomp)
! 2D case
case(4)
do i = 1,n
vec (:) = coord(i,:) - origin(:)
projection = vec(1)*normal(1)+vec(2)*normal(2)
if(projection > 0.0_rk) then
res(i,1:2) = me%dampFactor*abs(normal(1:2))*((coord(i,1:2) - origin(1:2))**me%dampExponent)/sqrt(sum(normal**2))
res(i,3:4) = me%dampExponent*me%dampFactor*abs(normal(1:2))*((coord(i,1:2)&
& - origin(1:2))**(me%dampExponent-1))/sqrt(sum(normal**2))
else
res(i,1:4) = 0.0_rk
end if
enddo
! 3D case
case(6)
do i = 1,n
vec (:) = coord(i,:) - origin(:)
projection = vec(1)*normal(1)+vec(2)*normal(2)+vec(3)*normal(3)
if(projection > 0.0_rk) then
res(i,1:3) = me%dampFactor*abs(normal(1:3))*(((coord(i,1:3) - origin(1:3))/sqrt(sum(normal**2)))**me%dampExponent)
res(i,4:6) = me%dampExponent*me%dampFactor*abs(normal(1:3))*(((coord(i,1:3)&
& - origin(1:3))/sqrt(sum(normal**2)))**(me%dampExponent-1)) / sqrt(sum(normal**2))
else
res(i,1:6) = 0.0_rk
end if
enddo
case default
write(*,*) 'ERROR in tem_evaluate_pml: Unknown number of components, stopping ...'
stop
end select
end function tem_evaluate_pml