14.2 Ortho_Diffusion Class

The Ortho_Diffusion Class is used to describe an Orthogonal Diffusion equation term in the CÆSAR Code Package.

The Ortho_Diffusion methods section describes the methods used in the Ortho_Diffusion Class.

Ortho_Diffusion public procedures:

	Fundamental procedures
	Initialize		Initializes an Ortho_Diffusion object.
	Finalize		Finalizes an Ortho_Diffusion object.
	Valid_State		Returns false iff an Ortho_Diffusion object is in an invalid state.
	Initialized		Returns true iff an Ortho_Diffusion object has been initialized.
	Operations
	Add_to_Matrix_Equation		Adds the linearized version of the Ortho_Diffusion Term to the specified matrix equation.
	Evaluate		Evaluates the Ortho_Diffusion Term ( 70#3071#31D72#3273#33 dV) at the cell centers.
	Evaluate_Gradient_Cells		Evaluates the gradient of Phi at the cell centers using the linearization of the Ortho_Diffusion Term.
	Locus		Returns the locus of the Ortho_Diffusion object.
	Name		Returns the name of the Ortho_Diffusion object.
	Output		Writes out the Ortho_Diffusion object.

Ortho_Diffusion public defined types:

	Ortho_Diffusion type
	Boundary_Condition		The boundary condition flag for each face of each cell.
	Coefficient		The diffusion coefficient, defined on the cells for now.
	Equation		The equation to which this term will be added.
	Initialized		Initialization status.
	Locus		Evaluation locus.
	Mesh		Mesh that this Ortho_Diffusion object is defined on.
	Name		The name for this variable.
	NEquations		The number of equations in the entire system.
	Phi		The independent variable at the linearization value (past time step or iterate).
	Phi_BC		The boundary condition constant for each face of each cell.
	Structure		Locus Base_Structure.

Ortho_Diffusion private procedures:

Get_Harmonic_Diffusion_Coef

Returns the harmonic diffusion coefficients for each face of each cell.

The Ortho_Diffusion Class code listing contains additional documentation. The Ortho_Diffusion Class also contains a Unit Test Program.