interp_2D_gradBfields Subroutine

  1. korc_interp.f90
  2. korc_interp
  3. interp_2D_gradBfields

private subroutine interp_2D_gradBfields(Y, gradB, flag)

Arguments

Type IntentOptional AttributesName
real(kind=rp), intent(in), DIMENSION(:,:), ALLOCATABLE:: Y

Particles' position in cylindrical coordinates, Y(1,:) = , Y(2,:) = , and Y(3,:) = .
real(kind=rp), intent(inout), DIMENSION(:,:), ALLOCATABLE:: gradB

Cylindirical components of interpolated gradient of magnitude of magnetic field.
integer(kind=is), intent(inout), DIMENSION(:), ALLOCATABLE:: flag

Flag that indicates whether particles are followed in the simulation (flag=1), or not (flag=0).

Calls

proc~~interp_2d_gradbfields~~CallsGraph proc~interp_2d_gradbfields interp_2D_gradBfields ezspline_error ezspline_error proc~interp_2d_gradbfields->ezspline_error

Called by

proc~~interp_2d_gradbfields~~CalledByGraph proc~interp_2d_gradbfields interp_2D_gradBfields proc~interp_fields interp_fields proc~interp_fields->proc~interp_2d_gradbfields proc~get_fields get_fields proc~get_fields->proc~interp_fields proc~mh_psi MH_psi proc~mh_psi->proc~get_fields proc~sample_hollmann_distribution_3d_psi sample_Hollmann_distribution_3D_psi proc~sample_hollmann_distribution_3d_psi->proc~get_fields proc~unitvectors unitVectors proc~unitvectors->proc~get_fields proc~get_hollmann_distribution_3d_psi get_Hollmann_distribution_3D_psi proc~get_hollmann_distribution_3d_psi->proc~sample_hollmann_distribution_3d_psi proc~gyro_distribution gyro_distribution proc~gyro_distribution->proc~unitvectors

Contents

Source Code

interp_2D_gradBfields

Source Code

subroutine interp_2D_gradBfields(Y,gradB,flag)
  !! @note Subroutine for interpolating the pre-computed, axisymmetric
  !! gradient of the magnitude of themagnetic field to the particles'
  !! position. Stored as cylindrical components of field. @endnote
  REAL(rp), DIMENSION(:,:), ALLOCATABLE, INTENT(IN)      :: Y
  !! Particles' position in cylindrical coordinates, Y(1,:) = \(R\),
  !! Y(2,:) = \(\phi\), and Y(3,:) = \(Z\).
  REAL(rp), DIMENSION(:,:), ALLOCATABLE, INTENT(INOUT)   :: gradB
  !! Cylindirical components of interpolated gradient of magnitude of
  !! magnetic field.
  REAL(rp), DIMENSION(:,:), ALLOCATABLE                  :: F
  !! Cylindrical components of interpolated magnetic field components.
  !! F(1,:)=\(B_R\), F(2,:)=\(B_\phi\), and F(3,:)=\(B_Z\).
  INTEGER(is), DIMENSION(:), ALLOCATABLE, INTENT(INOUT)  :: flag
  !! Flag that indicates whether particles are followed in the simulation
  !! (flag=1), or not (flag=0).
  INTEGER                                                :: pp
  !! Particle iterator.
  INTEGER                                                :: ss
  !! Species iterator.
  
  ss = size(Y,1)

  ALLOCATE(F(ss,3))
  !$OMP PARALLEL DO FIRSTPRIVATE(ss) PRIVATE(pp,ezerr) &
  !$OMP& SHARED(F,Y,gradB,flag,gradB_2d)
  do pp=1_idef,ss
     if ( flag(pp) .EQ. 1_is ) then
        call EZspline_interp(gradB_2d%R, Y(pp,1), Y(pp,3), F(pp,1), ezerr)
        call EZspline_error(ezerr)
        
        if (ezerr .NE. 0) then ! We flag the particle as lost
           flag(pp) = 0_is
        end if
        
        call EZspline_interp(gradB_2d%PHI, Y(pp,1), Y(pp,3), F(pp,2), ezerr)
        call EZspline_error(ezerr)
        
        call EZspline_interp(gradB_2d%Z, Y(pp,1), Y(pp,3), F(pp,3), ezerr)
        call EZspline_error(ezerr)

!        write(output_unit_write,'("PS R-gradB ",E17.10)') F(pp,1)
!        write(output_unit_write,'("PS PHI-gradB ",E17.10)') F(pp,2)
!        write(output_unit_write,'("PS Z-gradB ",E17.10)') F(pp,3)
        
        gradB(pp,1) = F(pp,1)
        gradB(pp,2) = F(pp,2)
        gradB(pp,3) = F(pp,3)

!        write(output_unit_write,'("PHI-gradB ",E17.10)') gradB(2,1)
        
     end if
  end do
  !$OMP END PARALLEL DO
  DEALLOCATE(F)
end subroutine interp_2D_gradBfields