#include <equation.hh>

Inheritance diagram for EquationBase:

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Collaboration diagram for EquationBase:

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Public Member Functions
	EquationBase ()

	EquationBase (Mesh &mesh, const Input::Record in_rec)

virtual void	initialize ()

virtual void	zero_time_step ()

virtual	~EquationBase ()

virtual void	update_solution ()

virtual void	choose_next_time ()

virtual void	set_time_upper_constraint (double dt, std::string message)

virtual void	set_time_lower_constraint (double dt, std::string message)

TimeGovernor &	time ()

virtual void	set_time_governor (TimeGovernor &time)

double	planned_time ()

double	solved_time ()

Mesh &	mesh ()

TimeMark::Type	mark_type ()

FieldSet &	data ()

virtual void	get_solution_vector (double *&vector, unsigned int &size)

virtual void	get_parallel_solution_vector (Vec &vector)

virtual void	output_data ()
	Write computed fields. More...

Protected Attributes
bool	equation_empty_
	flag is true if only default constructor was called More...

Mesh *	mesh_

TimeGovernor *	time_

Input::Record	input_record_

FieldSet *	eq_data_

std::shared_ptr< Balance >	balance_
	object for calculation and writing the mass balance to file. More...

Detailed Description

Class EquationBase is abstract base class for a general time dependent model. This class should provide general interface that can be used for general coupling of various particular models. By a model we mean a discrete solver of an partial or ordinary differential equation. Result of the model at one discrete time level should be a discrete field class (not yet implemented). Until we have field classes we only provide method get_solution_vector(), which returns pointer to sequential C array with linear combination of base functions that represents the solution.

Computation of one time step (method compute_one_step() ) is split into update_solution() and choose_next_time().

This class does not implement any constructor. In particular it does not initialize mesh and time. This has to be done in the constructor of particular child class.

Any constructor of child class should set solved = true. We assume, that after initialization an equation object stay solve in init time. For the first time step one calls method chose_next_time() which setup time frame of the first time step.

TODO: clarify initialization of data members

Definition at line 59 of file equation.hh.

Constructor & Destructor Documentation

EquationBase::EquationBase ( )

Default constructor. Sets all virtual methods empty. Necessary to make tests fixtures for equations. TODO: Replace setting all in constructor with appropriate getters and setters. Make appropriate checks if key ingredients are initialized.

Definition at line 36 of file equation.cc.

EquationBase::EquationBase	(	Mesh &	mesh,
		const Input::Record	in_rec
	)

Common initialization constructor. Implementation of particular equation should set just basic things in the constructor and postpone its initialization including initialization of its fields to the initialize method. The reason is that when the equation is part of a coupling the coupling may set some setting of the equation from the coupling level so that initialization use correct parameters. TODO: Which mechanism we use to pass setting form the coupling to its equations. Either use dedicated setters this however prevent generic coupling or use input storage to set data from upper level.

Definition at line 46 of file equation.cc.

virtual EquationBase::~EquationBase ( )

inlinevirtual

Require virtual destructor also for child classes.

Definition at line 109 of file equation.hh.

Member Function Documentation

virtual void EquationBase::choose_next_time ( void )

inlinevirtual

Fix the next discrete time for computation. Can be rewritten in child class to set possible constrains according to possible equation coefficients or other data which can be result of another model.

Reimplemented in ReactionTerm.

Definition at line 130 of file equation.hh.

FieldSet& EquationBase::data ( )

inline

Return reference to the equation data object containing all fields that the equation needs or produce.

Definition at line 193 of file equation.hh.

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virtual void EquationBase::get_parallel_solution_vector ( Vec & vector )

inlinevirtual

Child class have to implement getter for parallel solution vector. DEPRECATED

Reimplemented in DarcyMH.

Definition at line 210 of file equation.hh.

virtual void EquationBase::get_solution_vector	(	double *&	vector,
		unsigned int &	size
	)

inlinevirtual

Child class have to implement getter for sequential solution vector. DEPRECATED

Reimplemented in DarcyMH.

Definition at line 203 of file equation.hh.

virtual void EquationBase::initialize ( )

inlinevirtual

This method should initialize fields of the equation. All members (e.g. number of components) that are necessary for the field initialization must be set between construction and call of initialize. After this method the upper level coupling may set sharing of some fields between equations.

Reimplemented in DarcyMH, TransportOperatorSplitting, Elasticity, ConvectionTransport, SorptionBase, DualPorosity, HM_Iterative, and FirstOrderReactionBase.

Definition at line 88 of file equation.hh.

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TimeMark::Type EquationBase::mark_type ( )

inline

Getter for equation time mark type.

Definition at line 184 of file equation.hh.

Mesh& EquationBase::mesh ( )

inline

This getter method provides the computational mesh currently used by the model.

Definition at line 176 of file equation.hh.

virtual void EquationBase::output_data ( void )

inlinevirtual

Write computed fields.

Reimplemented in HeatTransferModel, DarcyMH, TransportOperatorSplitting, TransportNothing, ConvectionTransport, Elasticity, SorptionBase, DualPorosity, and ReactionTerm.

Definition at line 216 of file equation.hh.

double EquationBase::planned_time ( )

inline

Most actual planned time for solution.

Definition at line 164 of file equation.hh.

void EquationBase::set_time_governor ( TimeGovernor & time )

virtual

Set time governor.

Used to set pointer to common time governor (e.g. in Transport Operator Splitting, Reaction).

Definition at line 55 of file equation.cc.

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virtual void EquationBase::set_time_lower_constraint	(	double	dt,
		std::string	message
	)

inlinevirtual

Set external lower time step constrain for time governor of the equation.

Definition at line 142 of file equation.hh.

virtual void EquationBase::set_time_upper_constraint	(	double	dt,
		std::string	message
	)

inlinevirtual

Set external upper time step constrain for time governor of the equation.

Definition at line 136 of file equation.hh.

double EquationBase::solved_time ( )

inline

Time of actual solution returned by get_solution_vector().

Definition at line 170 of file equation.hh.

TimeGovernor& EquationBase::time ( )

inline

Basic getter method returns TimeGovernor reference which provides full access to the time information.

Definition at line 148 of file equation.hh.

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virtual void EquationBase::update_solution ( void )

inlinevirtual

Calculation of the next time step and its output.

Reimplemented in DarcyMH, TransportOperatorSplitting, Elasticity, ConvectionTransport, SorptionBase, DualPorosity, FirstOrderReactionBase, and HM_Iterative.

Definition at line 117 of file equation.hh.

virtual void EquationBase::zero_time_step ( )

inlinevirtual

Initialization of the solution in the zero time.

There may be fields that can not be initialized in the initialize method as they are provided by the coupling. Fields coming from coupling has to be set after the initialize method and before zero_time_step.

Reimplemented in DarcyMH, TransportOperatorSplitting, Elasticity, ConvectionTransport, SorptionBase, DualPorosity, HM_Iterative, and FirstOrderReactionBase.

Definition at line 100 of file equation.hh.

Member Data Documentation

std::shared_ptr<Balance> EquationBase::balance_

protected

object for calculation and writing the mass balance to file.

Definition at line 235 of file equation.hh.

FieldSet* EquationBase::eq_data_

protected

Pointer to the equation data object. Every particular equation is responsible to set the pointer in its constructor. This is used by the general method EqData::data(). This approach is simpler than making EqData::data() a virtual method.

Definition at line 232 of file equation.hh.

bool EquationBase::equation_empty_

protected

flag is true if only default constructor was called

Definition at line 222 of file equation.hh.

Input::Record EquationBase::input_record_

protected

Definition at line 225 of file equation.hh.

Mesh* EquationBase::mesh_

protected

Definition at line 223 of file equation.hh.

TimeGovernor* EquationBase::time_

protected

Definition at line 224 of file equation.hh.

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

/opt/flow123d/flow123d/src/coupling/equation.hh
/opt/flow123d/flow123d/src/coupling/equation.cc

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation