This is the base class for elements that implement calculation of finite element quantities over the domain and sides of a geometric element. More...

#include <elem_base.h>

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Public Member Functions
	ElementBase (MAST::SystemInitialization &sys, MAST::AssemblyBase &assembly, const MAST::GeomElem &elem)
	The default constructor. More...

virtual	~ElementBase ()
	Default virtual destructor. More...

MAST::SystemInitialization &	system_initialization ()

MAST::AssemblyBase &	assembly ()

MAST::NonlinearSystem &	system ()

const MAST::GeomElem &	elem () const

const RealVectorX &	sol (bool if_sens=false) const

virtual void	set_solution (const RealVectorX &vec, bool if_sens=false)
	stores `vec` as solution for element level calculations, or its sensitivity if `if_sens` is true. More...

virtual void	set_perturbed_solution (const RealVectorX &vec, bool if_sens=false)
	This provides the perturbed solution (or its sensitivity if `if_sens` is true.) for linearized analysis. More...

virtual void	set_complex_solution (const ComplexVectorX &vec, bool if_sens=false)
	This provides the complex solution (or its sensitivity if `if_sens` is true.) for frequecy-domain analysis. More...

virtual void	set_velocity (const RealVectorX &vec, bool if_sens=false)
	stores `vec` as velocity for element level calculations, or its sensitivity if `if_sens` is true. More...

virtual void	set_perturbed_velocity (const RealVectorX &vec, bool if_sens=false)
	stores `vec` as perturbed velocity for element level calculations, or its sensitivity if `if_sens` is true. More...

virtual void	set_acceleration (const RealVectorX &vec, bool if_sens=false)
	stores `vec` as acceleration for element level calculations, or its sensitivity if `if_sens` is true. More...

virtual void	set_perturbed_acceleration (const RealVectorX &vec, bool if_sens=false)
	stores `vec` as perturbed acceleration for element level calculations, or its sensitivity if `if_sens` is true. More...

void	attach_active_solution_function (MAST::FunctionBase &f)
	Attaches the function that represents the system solution. More...

void	detach_active_solution_function ()
	Detaches the function object that may have been attached to the element. More...

Protected Attributes
MAST::SystemInitialization &	_system
	SystemInitialization object associated with this element. More...

MAST::AssemblyBase &	_assembly
	Assembly object. More...

const MAST::GeomElem &	_elem
	geometric element for which the computations are performed More...

MAST::FunctionBase *	_active_sol_function
	pointer to the active solution mesh field function. More...

const Real &	_time
	time for which system is being assembled More...

RealVectorX	_sol
	local solution More...

RealVectorX	_sol_sens
	local solution sensitivity More...

ComplexVectorX	_complex_sol
	local solution used for frequency domain analysis More...

ComplexVectorX	_complex_sol_sens
	local solution used for frequency domain analysis More...

RealVectorX	_delta_sol
	local solution used for linearized analysis More...

RealVectorX	_delta_sol_sens
	local solution used for linearized analysis More...

RealVectorX	_vel
	local velocity More...

RealVectorX	_vel_sens
	local velocity More...

RealVectorX	_delta_vel
	local velocity More...

RealVectorX	_delta_vel_sens
	local velocity More...

RealVectorX	_accel
	local acceleration More...

RealVectorX	_accel_sens
	local acceleration More...

RealVectorX	_delta_accel
	local acceleration More...

RealVectorX	_delta_accel_sens
	local acceleration More...

Detailed Description

This is the base class for elements that implement calculation of finite element quantities over the domain and sides of a geometric element.

The primary functions required of the elements depend on the nature of analysis:

Nonlinear Analysis
$r(X,p) = 0$
A nonliner analysis requires element residuals and Jacobians. Sensitivity analysis of the nonlinear problem requires the sensitivity of the residual vector with respect to the concerned parameter.
Eigenvalue Analysis
$A(X,p) = \lambda B(X,p)$
An eigenvalue analysis requires the coefficent matrices and . For cases where the eigenvalue problem is defined using small disturbances about a steady-state solution, the base solution (and its sensitivity for sensitivity problems) needs to be provided to the element.
Transient Analysis for first order systems
$f_m(\dot{X}, X, p) + f(X,p) = 0$

Definition at line 72 of file elem_base.h.

Constructor & Destructor Documentation

MAST::ElementBase::ElementBase	(	MAST::SystemInitialization &	sys,
		MAST::AssemblyBase &	assembly,
		const MAST::GeomElem &	elem
	)

The default constructor.

Parameters

sys	SystemInitialization object which provides the system for which this element will perorm the calculations.
elem	libMesh::Elem object on which calculations will be performed.

Definition at line 27 of file elem_base.cpp.

MAST::ElementBase::~ElementBase ( )

virtual

Default virtual destructor.

Definition at line 39 of file elem_base.cpp.

Member Function Documentation

MAST::AssemblyBase& MAST::ElementBase::assembly ( )

inline

Returns: a reference to the libMesh::System object

Definition at line 103 of file elem_base.h.

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void MAST::ElementBase::attach_active_solution_function ( MAST::FunctionBase & f )

Attaches the function that represents the system solution.

Definition at line 148 of file elem_base.cpp.

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void MAST::ElementBase::detach_active_solution_function ( )

Detaches the function object that may have been attached to the element.

Definition at line 158 of file elem_base.cpp.

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const MAST::GeomElem& MAST::ElementBase::elem ( ) const

inline

Returns: a constant reference to the element

Definition at line 117 of file elem_base.h.

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void MAST::ElementBase::set_acceleration	(	const RealVectorX &	vec,
		bool	if_sens = `false`
	)

virtual

stores vec as acceleration for element level calculations, or its sensitivity if if_sens is true.

Reimplemented in MAST::StructuralElementBase.

Definition at line 124 of file elem_base.cpp.

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void MAST::ElementBase::set_complex_solution	(	const ComplexVectorX &	vec,
		bool	if_sens = `false`
	)

virtual

This provides the complex solution (or its sensitivity if if_sens is true.) for frequecy-domain analysis.

stores vec as solution for element level calculations.

Definition at line 86 of file elem_base.cpp.

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void MAST::ElementBase::set_perturbed_acceleration	(	const RealVectorX &	vec,
		bool	if_sens = `false`
	)

virtual

stores vec as perturbed acceleration for element level calculations, or its sensitivity if if_sens is true.

Reimplemented in MAST::StructuralElementBase.

Definition at line 136 of file elem_base.cpp.

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void MAST::ElementBase::set_perturbed_solution	(	const RealVectorX &	vec,
		bool	if_sens = `false`
	)

virtual

This provides the perturbed solution (or its sensitivity if if_sens is true.) for linearized analysis.

stores vec as solution for element level calculations.

Reimplemented in MAST::StructuralElementBase.

Definition at line 74 of file elem_base.cpp.

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void MAST::ElementBase::set_perturbed_velocity	(	const RealVectorX &	vec,
		bool	if_sens = `false`
	)

virtual

stores vec as perturbed velocity for element level calculations, or its sensitivity if if_sens is true.

Reimplemented in MAST::StructuralElementBase.

Definition at line 112 of file elem_base.cpp.

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void MAST::ElementBase::set_solution	(	const RealVectorX &	vec,
		bool	if_sens = `false`
	)

virtual

stores vec as solution for element level calculations, or its sensitivity if if_sens is true.

Reimplemented in MAST::StructuralElementBase.

Definition at line 62 of file elem_base.cpp.

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void MAST::ElementBase::set_velocity	(	const RealVectorX &	vec,
		bool	if_sens = `false`
	)

virtual

stores vec as velocity for element level calculations, or its sensitivity if if_sens is true.

Reimplemented in MAST::StructuralElementBase.

Definition at line 100 of file elem_base.cpp.

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const RealVectorX & MAST::ElementBase::sol ( bool if_sens = false ) const

Returns: a const reference to the solution vector, or its sensitivity if if_sens is true.

Definition at line 53 of file elem_base.cpp.

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MAST::NonlinearSystem & MAST::ElementBase::system ( )

Returns: a reference to the libMesh::System object

Definition at line 45 of file elem_base.cpp.

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MAST::SystemInitialization& MAST::ElementBase::system_initialization ( )

inline

Returns: a reference to the libMesh::System object

Definition at line 96 of file elem_base.h.

Member Data Documentation

RealVectorX MAST::ElementBase::_accel

protected

local acceleration

Definition at line 297 of file elem_base.h.

RealVectorX MAST::ElementBase::_accel_sens

protected

local acceleration

Definition at line 303 of file elem_base.h.

MAST::FunctionBase* MAST::ElementBase::_active_sol_function

protected

pointer to the active solution mesh field function.

If this has been set, then some of the element properties are dependent on the element solution, and the element should perform the necessary operations in calculation of the Jacobian

Definition at line 226 of file elem_base.h.

MAST::AssemblyBase& MAST::ElementBase::_assembly

protected

Assembly object.

Definition at line 213 of file elem_base.h.

ComplexVectorX MAST::ElementBase::_complex_sol

protected

local solution used for frequency domain analysis

Definition at line 250 of file elem_base.h.

ComplexVectorX MAST::ElementBase::_complex_sol_sens

protected

local solution used for frequency domain analysis

Definition at line 256 of file elem_base.h.

RealVectorX MAST::ElementBase::_delta_accel

protected

local acceleration

Definition at line 309 of file elem_base.h.

RealVectorX MAST::ElementBase::_delta_accel_sens

protected

local acceleration

Definition at line 315 of file elem_base.h.

RealVectorX MAST::ElementBase::_delta_sol

protected

local solution used for linearized analysis

Definition at line 262 of file elem_base.h.

RealVectorX MAST::ElementBase::_delta_sol_sens

protected

local solution used for linearized analysis

Definition at line 268 of file elem_base.h.

RealVectorX MAST::ElementBase::_delta_vel

protected

local velocity

Definition at line 285 of file elem_base.h.

RealVectorX MAST::ElementBase::_delta_vel_sens

protected

local velocity

Definition at line 291 of file elem_base.h.

const MAST::GeomElem& MAST::ElementBase::_elem

protected

geometric element for which the computations are performed

Definition at line 218 of file elem_base.h.

RealVectorX MAST::ElementBase::_sol

protected

local solution

Definition at line 238 of file elem_base.h.

RealVectorX MAST::ElementBase::_sol_sens

protected

local solution sensitivity

Definition at line 244 of file elem_base.h.

MAST::SystemInitialization& MAST::ElementBase::_system

protected

SystemInitialization object associated with this element.

Definition at line 208 of file elem_base.h.

const Real& MAST::ElementBase::_time

protected

time for which system is being assembled

Definition at line 232 of file elem_base.h.

RealVectorX MAST::ElementBase::_vel

protected

local velocity

Definition at line 273 of file elem_base.h.

RealVectorX MAST::ElementBase::_vel_sens

protected

local velocity

Definition at line 279 of file elem_base.h.

The documentation for this class was generated from the following files:

/home/travis/build/MASTmultiphysics/mast-multiphysics/src/base/elem_base.h
/home/travis/build/MASTmultiphysics/mast-multiphysics/src/base/elem_base.cpp

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation