tracer Type Reference

Detailed Description

Abstract tracer class for 2D grids.

Inheritance diagram for tracer:

Public Member Functions
procedure(tracer_step), deferred	delete (self)
	Destroy tracer and deallocate internal storage.
procedure(tracer_setup), deferred	setup (self, y, cell)
	Setup tracer and initialize ODE solver.
procedure(tracer_step), deferred	step (self)
	Take one step of the ODE solver.

Public Attributes
class(bfem_interp), pointer	b => NULL()
	Interpolation object for field evaluation.
integer(i4)	cell = 0
	Current cell containing tracer.
real(r8)	dt = 0.d0
	Timestep (for fixed step methods).
real(r8), dimension(:), pointer	dv => NULL()
	Change in ODE solution over last step.
real(r8), dimension(2)	dy = 0.d0
	Change in position in real coordinates (eg. X,Y).
real(r8), dimension(3)	f = 0.d0
	Logical position in cell.
logical	initialized = .FALSE.
	Has tracer been initialized.
logical	inv = .FALSE.
	Perform tracing in inverse coordinates?
integer(i4)	maxsteps = 1e6
	Maximum number of timesteps.
class(oft_bmesh), pointer	mesh => NULL()
integer	neq = 2
	Number of ODE equations to advance.
integer(i4)	nsteps = 0
	Number of timesteps taken.
real(r8)	raxis = 0.d0
	Radial location of axis for inverse coordinates.
integer(i4)	status = 0
	Status of tracer.
real(r8)	t = 0.d0
	Current time.
real(r8)	tol = 1.d-4
	Tolerance for ODE solver.
real(r8), dimension(:), pointer	v => NULL()
	Current ODE solution vector.
real(r8), dimension(2)	y = 0.d0
	Position in real coordinates (eg. X,Y).
real(r8)	zaxis = 0.d0
	Vertical location of axis for inverse coordinates.

Member Function/Subroutine Documentation

delete()

procedure(tracer_step), deferred delete ( class(tracer), intent(inout) self )

pure virtual

Destroy tracer and deallocate internal storage.

Parameters

[in,out]

self

Tracer object

setup()

procedure(tracer_setup), deferred setup ( class(tracer), intent(inout) self, real(8), dimension(2), intent(in) y, integer(4), intent(in), optional cell )

pure virtual

Setup tracer and initialize ODE solver.

Parameters

[in,out]	self	Tracer object
[in]	y	Initial position in physical coordinates
[in]	cell	Starting guess for cell

step()

procedure(tracer_step), deferred step ( class(tracer), intent(inout) self )

pure virtual

Take one step of the ODE solver.

Parameters

[in,out]

self

Tracer object

Member Data Documentation

b

class(bfem_interp), pointer b => NULL()

Interpolation object for field evaluation.

cell

integer(i4) cell = 0

Current cell containing tracer.

dt

real(r8) dt = 0.d0

Timestep (for fixed step methods).

dv

real(r8), dimension(:), pointer dv => NULL()

Change in ODE solution over last step.

dy

real(r8), dimension(2) dy = 0.d0

Change in position in real coordinates (eg. X,Y).

f

real(r8), dimension(3) f = 0.d0

Logical position in cell.

initialized

logical initialized = .FALSE.

Has tracer been initialized.

inv

logical inv = .FALSE.

Perform tracing in inverse coordinates?

maxsteps

integer(i4) maxsteps = 1e6

Maximum number of timesteps.

mesh

class(oft_bmesh), pointer mesh => NULL()

neq

integer neq = 2

Number of ODE equations to advance.

nsteps

integer(i4) nsteps = 0

Number of timesteps taken.

raxis

real(r8) raxis = 0.d0

Radial location of axis for inverse coordinates.

status

integer(i4) status = 0

Status of tracer.

t

real(r8) t = 0.d0

Current time.

tol

real(r8) tol = 1.d-4

Tolerance for ODE solver.

v

real(r8), dimension(:), pointer v => NULL()

Current ODE solution vector.

y

real(r8), dimension(2) y = 0.d0

Position in real coordinates (eg. X,Y).

zaxis

real(r8) zaxis = 0.d0

Vertical location of axis for inverse coordinates.

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The documentation for this type was generated from the following file:

• /home/runner/work/OpenFUSIONToolkit/OpenFUSIONToolkit/src/physics/tracing_2d.F90