!-----------------------------------------------------------------------------------------------------------------------------------
! This file is part of ReMKiT1D.
!
! ReMKiT1D is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as
! published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
!
! ReMKiT1D is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
!
! You should have received a copy of the GNU General Public License along with ReMKiT1D. If not, see <https://www.gnu.org/licenses/>.
!
! Copyright 2023 United Kingdom Atomic Energy Authority (stefan.mijin@ukaea.uk)
!-----------------------------------------------------------------------------------------------------------------------------------
module ccl_drag_derivation_class
!! author: Stefan Mijin
!!
!! Houses Chang-Cooper-Langdon drag coefficient derivation
use data_kinds ,only: rk ,ik
use runtime_constants ,only: debugging, assertions
use assertion_utility ,only: assert, assertIdentical, assertPure
use god_objects ,only: Object
use support_types ,only: RealArray
use physics_functions
use derivation_abstract_class ,only: Derivation
use v_space_class ,only: VSpace
use physical_constants
implicit none
private
type ,public ,extends(Derivation) :: CCLDragDerivation
!! Calculates the Chang-Cooper-Langdon drag coefficient for f0 Coulomb collisions assuming that the passed variable is
!! the single harmonic f0
real(rk) ,allocatable ,dimension(:) ,private :: v2dv !! v^2 dv vector used for integration
integer(ik) ,private :: numV
contains
procedure ,public :: init => initCCLDrag
procedure ,public :: calculate => calculateCCLDrag
end type CCLDragDerivation
!-----------------------------------------------------------------------------------------------------------------------------------
interface
!-----------------------------------------------------------------------------------------------------------------------------------
module subroutine initCCLDrag(this,vSpaceObj)
!! Initialize Chang-Cooper-Langdon drag coefficient derivation
class(CCLDragDerivation) ,intent(inout) :: this
type(VSpace) ,intent(in) :: vSpaceObj
end subroutine initCCLDrag
!-----------------------------------------------------------------------------------------------------------------------------------
module function calculateCCLDrag(this,inputArray,indices) result(output)
class(CCLDragDerivation) ,intent(inout) :: this
type(RealArray) ,dimension(:) ,intent(in) :: inputArray
integer(ik) ,dimension(:) ,intent(in) :: indices
real(rk) ,allocatable ,dimension(:) :: output
end function calculateCCLDrag
!-----------------------------------------------------------------------------------------------------------------------------------
end interface
!-----------------------------------------------------------------------------------------------------------------------------------
end module ccl_drag_derivation_class
!-----------------------------------------------------------------------------------------------------------------------------------
