Builds finite element arrays for acoustic propagation in 1-D using 2-Node elements. More...

Inheritance diagram for Pres1DL2:

Public Member Functions
	Pres1DL2 ()
	Default Constructor. More...

	Pres1DL2 (Mesh &ms)

	Pres1DL2 (Mesh &ms, Vect< real_t > &u)

	~Pres1DL2 ()
	Destructor.

void	LMass (real_t coef=1)
	Add lumped mass matrix to element matrix after multiplying it by coefficient `coef` More...

void	Mass (real_t coef=1)
	Add Consistent mass matrix to element matrix after multiplying it by coefficient `coef`. More...

void	Diffusion (real_t coef=1)
	Add diffusion matrix to element matrix after multiplying it by coefficient `coef` More...

void	BodyRHS (const Vect< real_t > &f)
	Add body right-hand side term to right hand side. More...

real_t	Flux () const
	Return (constant) heat flux in element.

void	setInput (EType opt, Vect< real_t > &u)
	Set equation input data. More...

Public Member Functions inherited from Equa_Acoustics< 2, 2, 1, 1 >
	Equa_Acoustics ()
	Default constructor. More...

virtual	~Equa_Acoustics ()
	Destructor.

virtual void	BoundaryRHS (const Vect< real_t > &f)
	Add boundary right-hand side term to right-hand side. More...

void	build ()
	Build the linear system of equations. More...

void	build (TimeStepping &s)
	Build the linear system of equations. More...

void	build (EigenProblemSolver &e)
	Build the linear system for an eigenvalue problem. More...

void	setSpeed (const real_t &c)
	Set speed of sound (constant)

Public Member Functions inherited from Equation< NEN_, NEE_, NSN_, NSE_ >
	Equation ()

	Equation (Mesh &mesh)
	Constructor with mesh instance. More...

	Equation (Mesh &mesh, Vect< real_t > &u)
	Constructor with mesh instance and solution vector. More...

	Equation (Mesh &mesh, Vect< real_t > &u, real_t &init_time, real_t &final_time, real_t &time_step)
	Constructor with mesh instance, matrix and right-hand side. More...

	~Equation ()
	Destructor.

void	updateBC (const Element &el, const Vect< real_t > &bc)
	Update Right-Hand side by taking into account essential boundary conditions. More...

void	DiagBC (DOFSupport dof_type=NODE_DOF, int dof=0)
	Update element matrix to impose bc by diagonalization technique. More...

void	LocalNodeVector (Vect< real_t > &b)
	Localize element vector from a Vect instance. More...

void	ElementNodeVector (const Vect< real_t > &b, LocalVect< real_t, NEE_ > &be)
	Localize element vector from a Vect instance. More...

void	SideNodeVector (const Vect< real_t > &b, LocalVect< real_t, NSE_ > &bs)
	Localize side vector from a Vect instance. More...

void	SideSideVector (const Vect< real_t > &b, vector< real_t > &bs)
	Localize side vector from a Vect instance. More...

void	ElementNodeVectorSingleDOF (const Vect< real_t > &b, LocalVect< real_t, NEN_ > &be)
	Localize Element Vector from a Vect instance. More...

void	ElementNodeVector (const Vect< real_t > &b, LocalVect< real_t, NEN_ > &be, int dof)
	Localize Element Vector from a Vect instance. More...

void	ElementSideVector (const Vect< real_t > &b, LocalVect< real_t, NSE_ > &be)
	Localize Element Vector from a Vect instance. More...

void	ElementVector (const Vect< real_t > &b, DOFSupport dof_type=NODE_DOF, int flag=0)
	Localize element vector. More...

void	SideVector (const Vect< real_t > &b, vector< real_t > &sb)
	Localize side vector. More...

void	ElementNodeCoordinates ()
	Localize coordinates of element nodes. More...

void	SideNodeCoordinates ()
	Localize coordinates of side nodes. More...

void	ElementAssembly (Matrix< real_t > *A)
	Assemble element matrix into global one. More...

void	ElementAssembly (BMatrix< real_t > &A)
	Assemble element matrix into global one. More...

void	ElementAssembly (SkSMatrix< real_t > &A)
	Assemble element matrix into global one. More...

void	ElementAssembly (SkMatrix< real_t > &A)
	Assemble element matrix into global one. More...

void	ElementAssembly (SpMatrix< real_t > &A)
	Assemble element matrix into global one. More...

void	ElementAssembly (TrMatrix< real_t > &A)
	Assemble element matrix into global one. More...

void	DGElementAssembly (Matrix< real_t > *A)
	Assemble element matrix into global one for the Discontinuous Galerkin approximation. More...

void	DGElementAssembly (SkSMatrix< real_t > &A)
	Assemble element matrix into global one for the Discontinuous Galerkin approximation. More...

void	DGElementAssembly (SkMatrix< real_t > &A)
	Assemble element matrix into global one for the Discontinuous Galerkin approximation. More...

void	DGElementAssembly (SpMatrix< real_t > &A)
	Assemble element matrix into global one for the Discontinuous Galerkin approximation. More...

void	DGElementAssembly (TrMatrix< real_t > &A)
	Assemble element matrix into global one for the Discontinuous Galerkin approximation. More...

void	SideAssembly (Matrix< real_t > *A)
	Assemble side (edge or face) matrix into global one. More...

void	SideAssembly (SkSMatrix< real_t > &A)
	Assemble side (edge or face) matrix into global one. More...

void	SideAssembly (SkMatrix< real_t > &A)
	Assemble side (edge or face) matrix into global one. More...

void	SideAssembly (SpMatrix< real_t > &A)
	Assemble side (edge or face) matrix into global one. More...

void	ElementAssembly (Vect< real_t > &v)
	Assemble element vector into global one. More...

void	SideAssembly (Vect< real_t > &v)
	Assemble side (edge or face) vector into global one. More...

void	AxbAssembly (const Element &el, const Vect< real_t > &x, Vect< real_t > &b)
	Assemble product of element matrix by element vector into global vector. More...

void	AxbAssembly (const Side &sd, const Vect< real_t > &x, Vect< real_t > &b)
	Assemble product of side matrix by side vector into global vector. More...

size_t	getNbNodes () const
	Return number of element nodes.

size_t	getNbEq () const
	Return number of element equations.

real_t	setMaterialProperty (const string &exp, const string &prop)
	Define a material property by an algebraic expression. More...

Public Member Functions inherited from Equa
	Equa ()
	Default constructor.

virtual	~Equa ()
	Destructor.

void	setMesh (Mesh &m)
	Define mesh and renumber DOFs after removing imposed ones.

Mesh &	getMesh () const
	Return reference to Mesh instance. More...

LinearSolver &	getLinearSolver ()
	Return reference to linear solver instance.

Matrix< real_t > *	getMatrix () const
	Return pointer to matrix.

void	setSolver (Iteration ls, Preconditioner pc=IDENT_PREC)
	Choose solver for the linear system. More...

void	setMatrixType (int t)
	Choose type of matrix. More...

int	solveLinearSystem (Matrix< real_t > *A, Vect< real_t > &b, Vect< real_t > &x)
	Solve the linear system with given matrix and right-hand side. More...

int	solveLinearSystem (Vect< real_t > &b, Vect< real_t > &x)
	Solve the linear system with given right-hand side. More...

void	LinearSystemInfo ()
	Print info on linear system solver.

Detailed Description

Builds finite element arrays for acoustic propagation in 1-D using 2-Node elements.

Note that members calculating element arrays have as an argument a real coef that will be multiplied by the contribution of the current element. This makes possible testing different algorithms.

Constructor & Destructor Documentation

◆ Pres1DL2() [1/3]

Pres1DL2 ( )

Default Constructor.

Constructs an empty equation.

◆ Pres1DL2() [2/3]

Pres1DL2 ( Mesh & ms )

Constructor using mesh instance

Parameters

[in] ms Mesh instance

◆ Pres1DL2() [3/3]

Pres1DL2	(	Mesh &	ms,
		Vect< real_t > &	u
	)

Constructor using mesh instance and solution vector

Parameters

[in]	ms	Mesh instance
[in,out]	u	Vect instance containing solution vector

Member Function Documentation

◆ BodyRHS()

void BodyRHS ( const Vect< real_t > & f )

virtual

Add body right-hand side term to right hand side.

Parameters

[in] f Vector containing source at nodes.

Reimplemented from Equa_Acoustics< 2, 2, 1, 1 >.

◆ Diffusion()

void Diffusion ( real_t coef = 1 )

virtual

Add diffusion matrix to element matrix after multiplying it by coefficient coef

Parameters

[in] coef Coefficient to multiply by added term [default: 1]

Reimplemented from Equa_Acoustics< 2, 2, 1, 1 >.

◆ LMass()

void LMass ( real_t coef = 1 )

virtual

Add lumped mass matrix to element matrix after multiplying it by coefficient coef

Parameters

[in] coef Coefficient to multiply by added term [default: 1]

Reimplemented from Equa_Acoustics< 2, 2, 1, 1 >.

◆ Mass()

void Mass ( real_t coef = 1 )

virtual

Add Consistent mass matrix to element matrix after multiplying it by coefficient coef.

Parameters

[in] coef Coefficient to multiply by added term [default: 1]

Reimplemented from Equa_Acoustics< 2, 2, 1, 1 >.

◆ setInput()

void setInput	(	EType	opt,
		Vect< real_t > &	u
	)

Set equation input data.

Parameters

[in]	opt	Parameter that selects data type for input. This parameter is to be chosen in the enumerated variable EqDataType `INITIAL_FIELD`: Initial temperature `BOUNDARY_CONDITION_DATA`: Boundary condition (Dirichlet) `SOURCE_DATA`: Heat source `FLUX_DATA`: Heat flux (Neumann boundary condition) `VELOCITY`: Velocity vector (for the convection term)
[in]	u	Vector containing input data

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ Pres1DL2() [1/3]

◆ Pres1DL2() [2/3]

◆ Pres1DL2() [3/3]

Member Function Documentation

◆ BodyRHS()

◆ Diffusion()

◆ LMass()

◆ Mass()

◆ setInput()