This function returns the sigma for the spongelayer computed from exponential function
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
type(tem_spongeLayer_plane_type) | :: | me |
Spacetime function to evaluate |
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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 |
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integer, | intent(in) | :: | n |
Number of arrays to return |
return value
function spongelayer_plane_expon_for_coord(me, coord, n) &
& result(res)
! --------------------------------------------------------------------------
!> Spacetime function to evaluate
type(tem_spongeLayer_plane_type) :: me
!> Number of arrays to return
integer, intent(in) :: n
!> 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)
! --------------------------------------------------------------------------
integer :: i
real(kind=rk) :: sigma, origin(3), normal(3), vec(3), proj_len
! --------------------------------------------------------------------------
origin(:) = me%origin
! Normal was normalized in load routine so multiply thickness to convert
! normal to user defined normal
normal(:) = me%normal * me%thickness
do i = 1,n
vec(:) = coord(i,:) - origin(:)
proj_len = (vec(1)*normal(1)+ vec(2)*normal(2)+vec(3)*normal(3))/ &
(normal(1)**2 + normal(2)**2 + normal(3)**2)
sigma = me%dampFactor*((proj_len)**me%dampExponent)
if (proj_len > 0 .and. proj_len < 1) then
res(i) = sigma
else if (proj_len > 1) then
res(i) = me%dampFactor
else
res(i) = 0.0_rk
end if
end do
end function spongelayer_plane_expon_for_coord