Base class for 0D model components. More...

#include <Block.h>

Inheritance diagram for Block:

Public Member Functions
	Block (int id, Model *model, BlockType block_type, BlockClass block_class, std::vector< std::pair< std::string, InputParameter > > input_params)
	Construct a new Block object.

	~Block ()
	Destroy the Block object.

	Block (const Block &)=delete
	Copy the Block object.

std::string	get_name ()
	Get the name of the block.

void	setup_params_ (const std::vector< int > &param_ids)
	Setup parameter IDs for the block.

void	setup_dofs_ (DOFHandler &dofhandler, int num_equations, const std::list< std::string > &internal_var_names)
	Set up the degrees of freedom (DOF) of the block.

virtual void	setup_dofs (DOFHandler &dofhandler)
	Set up the degrees of freedom (DOF) of the block.

virtual void	setup_model_dependent_params ()
	Setup parameters that depend on the model.

virtual void	update_constant (SparseSystem &system, std::vector< double > &parameters)
	Update the constant contributions of the element in a sparse system.

virtual void	update_time (SparseSystem &system, std::vector< double > &parameters)
	Update the time-dependent contributions of the element in a sparse system.

virtual void	update_solution (SparseSystem &system, std::vector< double > &parameters, const Eigen::Matrix< double, Eigen::Dynamic, 1 > &y, const Eigen::Matrix< double, Eigen::Dynamic, 1 > &dy)
	Update the solution-dependent contributions of the element in a sparse system.

virtual void	post_solve (Eigen::Matrix< double, Eigen::Dynamic, 1 > &y)
	Modify the solution after solving it.

virtual void	update_gradient (Eigen::SparseMatrix< double > &jacobian, Eigen::Matrix< double, Eigen::Dynamic, 1 > &residual, Eigen::Matrix< double, Eigen::Dynamic, 1 > &alpha, std::vector< double > &y, std::vector< double > &dy)
	Set the gradient of the block contributions with respect to the parameters.

virtual TripletsContributions	get_num_triplets ()
	Get number of triplets of element.

Public Attributes
const int	id
	Global ID of the block.

const Model *	model
	The model to which the block belongs.

const BlockType	block_type
	Type of this block.

const BlockClass	block_class
	Class of this block.

const std::vector< std::pair< std::string, InputParameter > >	input_params
	Map from name to input parameter.

std::vector< Node * >	inlet_nodes
	Inlet nodes.

std::vector< Node * >	outlet_nodes
	Outlet nodes.

bool	steady = false
	Toggle steady behavior.

bool	input_params_list = false
	Are input parameters given as a list?

std::vector< int >	global_param_ids
	Global IDs for the block parameters.

std::vector< int >	global_var_ids
	Global variable indices of the local element contributions.

std::vector< int >	global_eqn_ids
	Global equation indices of the local element contributions.

TripletsContributions	num_triplets
	Number of triplets of element.

Detailed Description

Base class for 0D model components.

A Block is the base class of 0D model elements. It is the place where the contribution of an element to the global system is controlled. It defines all relevant attributes and methods of an element and a few common helpers for setting it up.

Constructor & Destructor Documentation

◆ Block() [1/2]

Block::Block	(	int	id,
		Model *	model,
		BlockType	block_type,
		BlockClass	block_class,
		std::vector< std::pair< std::string, InputParameter > >	input_params )

inline

Construct a new Block object.

Parameters

id	Global ID of the block
model	The model to which the block belongs
block_type	The specific type of block
block_class	The class the block belongs to (e.g. vessel, junction)
input_params	The parameters the block takes from the input file

◆ ~Block()

Block::~Block ( )

Destroy the Block object.

◆ Block() [2/2]

Block::Block ( const Block & )

delete

Copy the Block object.

Member Function Documentation

◆ get_name()

std::string Block::get_name ( )

Get the name of the block.

Returns: std::string Name of the block

◆ get_num_triplets()

TripletsContributions Block::get_num_triplets ( )

virtual

Get number of triplets of element.

Number of triplets that the element contributes to the global system (relevant for sparse memory reservation)

Returns: TripletsContributions Number of triplets of element

◆ post_solve()

void Block::post_solve ( Eigen::Matrix< double, Eigen::Dynamic, 1 > & y )

virtual

Modify the solution after solving it.

Parameters

y	Current solution

Reimplemented in ClosedLoopHeartPulmonary.

◆ setup_dofs()

void Block::setup_dofs ( DOFHandler & dofhandler )

virtual

Set up the degrees of freedom (DOF) of the block.

Set global_var_ids and global_eqn_ids of the element based on the number of equations and the number of internal variables of the element.

Parameters

dofhandler Degree-of-freedom handler to register variables and equations at

Reimplemented in BloodVessel, BloodVesselJunction, ChamberElastanceInductor, ClosedLoopCoronaryBC, ClosedLoopHeartPulmonary, ClosedLoopRCRBC, FlowReferenceBC, Junction, OpenLoopCoronaryBC, PressureReferenceBC, ResistanceBC, ResistiveJunction, ValveTanh, and WindkesselBC.

◆ setup_dofs_()

void Block::setup_dofs_	(	DOFHandler &	dofhandler,
		int	num_equations,
		const std::list< std::string > &	internal_var_names )

Set up the degrees of freedom (DOF) of the block.

Set global_var_ids and global_eqn_ids of the element based on the number of equations and the number of internal variables of the element.

Parameters

dofhandler	Degree-of-freedom handler to register variables and equations at
num_equations	Number of equations of the block
internal_var_names	Number of internal variables of the block

◆ setup_model_dependent_params()

void Block::setup_model_dependent_params ( )

virtual

Setup parameters that depend on the model.

Reimplemented in ClosedLoopCoronaryLeftBC, ClosedLoopCoronaryRightBC, and ClosedLoopCoronaryBC.

◆ setup_params_()

void Block::setup_params_ ( const std::vector< int > & param_ids )

Setup parameter IDs for the block.

Parameters

param_ids Global IDs of the block parameters

◆ update_constant()

void Block::update_constant	(	SparseSystem &	system,
		std::vector< double > &	parameters )

virtual

Update the constant contributions of the element in a sparse system.

Parameters

system	System to update contributions at
parameters	Parameters of the model

Reimplemented in BloodVessel, BloodVesselJunction, ChamberElastanceInductor, ClosedLoopCoronaryBC, ClosedLoopHeartPulmonary, ClosedLoopRCRBC, FlowReferenceBC, Junction, OpenLoopCoronaryBC, PressureReferenceBC, ResistanceBC, ResistiveJunction, ValveTanh, and WindkesselBC.

◆ update_gradient()

void Block::update_gradient	(	Eigen::SparseMatrix< double > &	jacobian,
		Eigen::Matrix< double, Eigen::Dynamic, 1 > &	residual,
		Eigen::Matrix< double, Eigen::Dynamic, 1 > &	alpha,
		std::vector< double > &	y,
		std::vector< double > &	dy )

virtual

Set the gradient of the block contributions with respect to the parameters.

Parameters

jacobian	Jacobian with respect to the parameters
alpha	Current parameter vector
residual	Residual with respect to the parameters
y	Current solution
dy	Time-derivative of the current solution

Reimplemented in BloodVessel, BloodVesselJunction, and Junction.

◆ update_solution()

void Block::update_solution	(	SparseSystem &	system,
		std::vector< double > &	parameters,
		const Eigen::Matrix< double, Eigen::Dynamic, 1 > &	y,
		const Eigen::Matrix< double, Eigen::Dynamic, 1 > &	dy )

virtual

Update the solution-dependent contributions of the element in a sparse system.

Parameters

system	System to update contributions at
parameters	Parameters of the model
y	Current solution
dy	Current derivate of the solution

Reimplemented in BloodVessel, BloodVesselJunction, ClosedLoopCoronaryBC, ClosedLoopHeartPulmonary, and ValveTanh.

◆ update_time()

void Block::update_time	(	SparseSystem &	system,
		std::vector< double > &	parameters )

virtual

Update the time-dependent contributions of the element in a sparse system.

Parameters

system	System to update contributions at
parameters	Parameters of the model

Reimplemented in ChamberElastanceInductor, ClosedLoopHeartPulmonary, FlowReferenceBC, OpenLoopCoronaryBC, PressureReferenceBC, ResistanceBC, and WindkesselBC.

Member Data Documentation

◆ block_class

const BlockClass Block::block_class

Class of this block.

◆ block_type

const BlockType Block::block_type

Type of this block.

◆ global_eqn_ids

std::vector<int> Block::global_eqn_ids

Global equation indices of the local element contributions.

Equation indices correspond to rows in the global system.

◆ global_param_ids

std::vector<int> Block::global_param_ids

Global IDs for the block parameters.

IDs of the parameters

◆ global_var_ids

std::vector<int> Block::global_var_ids

Global variable indices of the local element contributions.

Determines where the local element contributions are written to in the global system during assembly. The order of indices is:

$[P_{in}^1, Q_{in}^1, \dots, P_{in}^n, Q_{in}^n, P_{out}^1, Q_{out}^1, \dots, P_{out}^m, Q_{out}^m, V^{1}, \dots, V^{p}]$

with $P_{in}$ , $Q_{in}$ , $P_{out}$ , $Q_{out}$ , and denoting inlet pressure, inlet flow, outlet pressure, outlet flow and an internal variable of the element, respectively.