Equa_Laplace Class Template Reference
[Laplace equation]

#include <Equa_Laplace.h>

Inheritance diagram for Equa_Laplace:

List of all members.

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Detailed Description

template<class T_ = double, size_t NEN_ = 3, size_t NEE_ = 3, size_t NSN_ = 2, size_t NSE_ = 2>
class OFELI::Equa_Laplace< T_, NEN_, NEE_, NSN_, NSE_ >

Abstract class for classes about the Laplace equation.

Template Arguments:

• T_ : data type (double, float, ...)
• NEN_ : Number of element nodes
• NEE_ : Number of element equations
• NSN_ : Number of side nodes
• NSE_ : Number of side equations

Public Member Functions
T_ *	A ()
	Return element matrix as a C-array.
T_ *	b ()
	Return element right-hand side as a C-array.
void	DiagBC (int dof_type=NODE_DOF, int dof=0)
	Update element matrix to impose bc by diagonalization technique.
LocalMatrix< T_, NEE_, NEE_ > &	EA ()
	Return element matrix as a LocalMatrix instance.
LocalVect< T_, NEE_ > &	Eb ()
	Return element right-hand side as a LocalVect instance.
void	ElementVector (const Vect< T_ > &b, int dof=0, int dof_type=NODE_DOF)
	Localize Element Vector.
LocalVect< T_, NEE_ > &	Ep ()
	Return element matrix as a C-array.
	Equa_Laplace ()
	Default constructor.
LinearSolver< T_ > &	getLinearSolver ()
	Return reference to linear solver instance.
size_t	getNbEq () const
	Return number of element equations.
size_t	getNbNodes () const
	Return number of element nodes.
void	LocalNodeVector (AbsVect< T_ > *b)
	Localize Element Vector from a NodeVect instance.
T_ *	Prev ()
	Return element matrix as a C-array.
LocalMatrix< T_, NSE_, NSE_ > &	SA ()
	Return side matrix as a LocalMatrix instance.
void	setDirichlet (const Vect< double > &g)
	Define Dirichlet boundary conditions.
void	setInitialSolution (const Vect< T_ > &u)
	Set initial solution (previous time step).
double	setMaterialProperty (const string &exp, const string &prop)
	Define a material property by an algebraic expression.
void	setMesh (class Mesh &m)
	Define mesh and renumber DOFs after removing imposed ones.
void	setNeumann (const Vect< double > &h)
	Define Neumann boundary conditions.
void	setSource (const Vect< double > &f)
	Define Source right-hand side of the equation.
void	SideVector (const Vect< T_ > &b)
	Localize Side Vector.
void	updateBC (const Vect< T_ > &bc)
	Update Right-Hand side by taking into account essential boundary conditions.
virtual	~Equa_Laplace ()
	Destructor.
Protected Member Functions
void	Init (const Side *sd)
	Set side arrays to zero.
void	Init (const Element *el)
	Set element arrays to zero.

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Constructor & Destructor Documentation

Equa_Laplace

(

)

Default constructor.

Constructs an empty equation.

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Member Function Documentation

void DiagBC	(	int	dof_type = NODE_DOF,
		int	dof = 0
	)			[inherited]

Update element matrix to impose bc by diagonalization technique.

Parameters:

[in]	dof_type	DOF type option. To choose among the enumerated values: = NODE_DOF, DOFs are supported by nodes [ default ] = ELEMENT_DOF, DOFs are supported by elements = SIDE_DOF, DOFs are supported by sides
[in]	dof	DOF setting: = 0, All DOFs are taken into account [ default ] != 0, Only DOF No. dof is handled in the sustem

References Side::getCode(), Node::getCode(), and Node::getLabel().

void ElementVector	(	const Vect< T_ > &	b,
		int	dof = 0,
		int	dof_type = NODE_DOF
	)			[inherited]

Localize Element Vector.

Parameters:

[in]	b	Global vector to be localized
[in]	dof_type	DOF type option. To choose among the enumerated values: = NODE_DOF, DOFs are supported by nodes [ default ] = ELEMENT_DOF, DOFs are supported by elements = SIDE_DOF, DOFs are supported by sides
[in]	dof	DOF setting: = 0, All DOFs are taken into account [ default ] != 0, Only DOF No. dof is handled in the sustem The resulting local vector can be accessed by attribute ePrev. This member function is to be used if a constructor with Element was invoked.

References Equation::b(), Side::getDOF(), Node::getDOF(), Side::getNbDOF(), and Node::getNbDOF().

void LocalNodeVector

(

AbsVect< T_ > *

b

)

[inherited]

Localize Element Vector from a NodeVect instance.

Parameters:

[in]

b

Pointer to global vector to be localized. The resulting local vector can be accessed by attribute ePrev. This member function is to be used if a constructor with Element was invoked.

References Node::getLabel(), and Node::getNbDOF().

void setDirichlet

(

const Vect< double > &

g

)

Define Dirichlet boundary conditions.

Parameters:

[in]

g

Vect instance containing prescribed boundary conditions at nodes

double setMaterialProperty	(	const string &	exp,
		const string &	prop
	)			[inherited]

Define a material property by an algebraic expression.

Parameters:

[in]	exp	Algebraic expression
[in]	prop	Property name

Return values:

ret

Return value in expression evaluation: ret=0, Normal evaluation ret!=0, An error message is displayed.

Referenced by Equa_Therm< double, 4, 4, 3, 3 >::Conduc(), Equa_Solid< double, 4, 8, 2, 4 >::Density(), Equa_Fluid< double, 4, 8, 2, 4 >::Density(), Equa_Electromagnetics< complex< double >, 3, 3, 2, 2 >::ElectricConductivity(), Equa_Electromagnetics< complex< double >, 3, 3, 2, 2 >::ElectricResistivity(), Equa_Electromagnetics< complex< double >, 3, 3, 2, 2 >::MagneticPermeability(), Equa_Solid< double, 4, 8, 2, 4 >::Poisson(), Equa_Therm< double, 4, 4, 3, 3 >::RhoCp(), Equa_Fluid< double, 4, 8, 2, 4 >::ThermalExpansion(), Equa_Fluid< double, 4, 8, 2, 4 >::Viscosity(), and Equa_Solid< double, 4, 8, 2, 4 >::Young().

void setNeumann

(

const Vect< double > &

h

)

Define Neumann boundary conditions.

Parameters:

[in]

h

Vect instance containing prescribed boundary conditions at sides

void setSource

(

const Vect< double > &

f

)

Define Source right-hand side of the equation.

Parameters:

[in]

f

Vect instance containing source values at elements

Reimplemented in Laplace2DT3.

void SideVector

(

const Vect< T_ > &

b

)

[inherited]

Localize Side Vector.

Parameters:

[in]

b

Global vector to be localized = NODE_DOF, DOFs are supported by nodes [ default ] = ELEMENT_DOF, DOFs are supported by elements = SIDE_DOF, DOFs are supported by sides The resulting local vector can be accessed by attribute ePrev. This member function is to be used if a constructor with Side was invoked.

References Equation::b(), Node::getDOF(), and Node::getNbDOF().

void updateBC

(

const Vect< T_ > &

bc

)

[inherited]

Update Right-Hand side by taking into account essential boundary conditions.

Init solution.

Parameters:

[in]

bc

Vector that contains imposed values at all DOFs