Sweep over a 1D mesh. More...

Inheritance diagram for Sweep1D:

Collaboration diagram for Sweep1D:

Public Member Functions
function	Sweep1D (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_mesh
	1-D Cartesian mesh.
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
Private Member Functions
function	x_bounds (in obj, in o)
function	y_bounds (in obj, in o)

Detailed Description

Sweep over a 1D mesh.

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 Sweep1D	(	in	input,
		in	mesh,
		in	mat,
		in	quadrature,
		in	boundary,
		in	equation
	)

Class constructor.

Parameters:

input	Number of fine mesh per x coarse mesh.
mesh	Number of fine mesh per y coarse mesh.
mat	Coarse mesh edges along x axis.
quadrature	Coarse mesh edges along y axis.
boundary	Coarse mesh material map.

Returns:: Instance of the Mesh 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.