Sweep over a tracked 2D domain. More...

Inheritance diagram for SweepMOC:

Collaboration diagram for SweepMOC:

Public Member Functions
function	SweepMOC (in input, in mesh, in mat, in quadrature, in boundary, in equation)
	Class constructor.
function	sweep (in obj, in source, in g)
	Sweep the mesh for all angles.
Public Attributes
Property	d_input
	User input.
Property	d_track
	Tracking information.
Property	d_mat
	Materials.
Property	d_quadrature
	Angular mesh.
Property	d_equation
	Spatial discretization.
Property	d_alpha
	Weighted diamond-difference parameters.
Property	d_boundary
	Boundary fluxes.
Property	d_nx

Detailed Description

Sweep over a tracked 2D domain.

The within-group transport equation is

$\mathbf{T}\psi = Q \, ,$

where $\mathbf{T}$ is the streaming and collision operator and $ Q $ is a discrete representation of all source contributions.

To invert the operator $\mathbf{T}$ , we "sweep" over the mesh for all angles, which gives us updated angular fluxes in each cell. However, we don't store the angular flux, but rather add its contribution to the scalar flux directly since storing the angular flux is too expensive.

Constructor & Destructor Documentation

function SweepMOC	(	in	input,
		in	mesh,
		in	mat,
		in	quadrature,
		in	boundary,
		in	equation
	)

Class constructor.

Parameters:

input	User input database.
mesh	Tracked domain.
mat	Materials definitions.
quadrature	Angular quadrature.
boundary	Boundary fluxes.
equation	Spatial discretization

Returns:: Instance of the SweepMOC class.

Member Function Documentation

function sweep	(	in	obj,
		in	source,
		in	g
	)

Sweep the mesh for all angles.

This performs the action of $\mathbf{T}^{-1}$ on a given discrete right hand side vector. Currently, a single vector applicable to all angles is provided, since we work only with isotropic sources and scattering.