Mixed-hybrid model of linear Darcy flow, possibly unsteady. More...

#include <darcy_flow_mh.hh>

Inheritance diagram for DarcyMH:

Collaboration diagram for DarcyMH:

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Classes
class	EqData

Public Member Functions
	TYPEDEF_ERR_INFO (EI_Reason, string)

	DECLARE_EXCEPTION (ExcSolverDiverge,<< "Diverged nonlinear solver. Reason: "<< EI_Reason::val)

	DECLARE_INPUT_EXCEPTION (ExcMissingTimeGovernor,<< "Missing the key 'time', obligatory for the transient problems.")

	DarcyMH (Mesh &mesh, const Input::Record in_rec, TimeGovernor *tm=nullptr)
	CREATE AND FILL GLOBAL MH MATRIX OF THE WATER MODEL. More...

void	init_eq_data ()

void	initialize () override

virtual void	initialize_specific ()

void	zero_time_step () override

void	update_solution () override

void	solve_time_step (bool output=true)
	Solve the problem without moving to next time and without output. More...

virtual void	postprocess ()
	postprocess velocity field (add sources) More...

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

EqData &	data ()

void	set_extra_storativity (const Field< 3, FieldValue< 3 >::Scalar > &extra_stor)

void	set_extra_source (const Field< 3, FieldValue< 3 >::Scalar > &extra_src)

virtual	~DarcyMH () override

Public Member Functions inherited from DarcyFlowInterface
	DarcyFlowInterface (Mesh &mesh, const Input::Record in_rec)

virtual	~DarcyFlowInterface ()

Public Member Functions inherited from EquationBase
	EquationBase ()

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

virtual	~EquationBase ()

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 ()

std::shared_ptr< Balance >	balance () const

TimeMark::Type	mark_type ()

FieldSet &	data ()

Static Public Member Functions
static const Input::Type::Selection &	get_mh_mortar_selection ()
	Selection for enum MortarMethod. More...

static const Input::Type::Record &	type_field_descriptor ()

static const Input::Type::Record &	get_input_type ()

Static Public Member Functions inherited from DarcyFlowInterface
static Input::Type::Abstract &	get_input_type ()

Static Public Member Functions inherited from EquationBase
static Input::Type::Record &	record_template ()
	Template Record with common keys for derived equations. More...

Protected Member Functions
virtual bool	zero_time_term (bool time_global=false)

void	solve_nonlinear ()
	Solve method common to zero_time_step and update solution. More...

void	modify_system ()

virtual void	setup_time_term ()

void	prepare_new_time_step ()

void	create_linear_system (Input::AbstractRecord rec)

virtual void	read_initial_condition ()

void	allocate_mh_matrix ()

void	assembly_mh_matrix (MultidimAssembly &assembler)

virtual void	assembly_source_term ()
	Source term is implemented differently in LMH version. More...

virtual void	assembly_linear_system ()

void	set_mesh_data_for_bddc (LinSys_BDDC *bddc_ls)

virtual double	solution_precision () const

void	print_matlab_matrix (string matlab_file)
	Print darcy flow matrix in matlab format into a file. More...

std::vector< int >	get_component_indices_vec (unsigned int component) const
	Get vector of all DOF indices of given component (0..side, 1..element, 2..edge) More...

Protected Attributes
std::shared_ptr< Balance >	balance_

DarcyFlowMHOutput *	output_object

int	size

int	n_schur_compls

bool	use_steady_assembly_

bool	data_changed_

double	tolerance_

unsigned int	min_n_it_

unsigned int	max_n_it_

unsigned int	nonlinear_iteration_

LinSys *	schur0

Vec	steady_diagonal

Vec	steady_rhs

Vec	new_diagonal

Vec	previous_solution

std::shared_ptr< EqData >	data_

Protected Attributes inherited from EquationBase
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...

Static Private Attributes
static const int	registrar
	Registrar of class to factory. More...

Friends
class	DarcyFlowMHOutput

Additional Inherited Members
Public Types inherited from DarcyFlowInterface
enum	MortarMethod { NoMortar = 0, MortarP0 = 1, MortarP1 = 2 }
	Type of experimental Mortar-like method for non-compatible 1d-2d interaction. More...

typedef DarcyFlowInterface	FactoryBaseType
	Typedef for usage of Input::Factory in child classes. More...

Detailed Description

Mixed-hybrid model of linear Darcy flow, possibly unsteady.

Abstract class for various implementations of Darcy flow. In future there should be one further level of abstraction for general time dependent problem.

maybe TODO: split compute_one_step to : 1) prepare_next_timestep 2) actualize_solution - this is for iterative nonlinear solvers Mixed-hybrid of steady Darcy flow with sources and variable density.

solve equations:

$q= -{\mathbf{K}} \nabla h -{\mathbf{K}} R \nabla z$

$\mathrm{div} q = f$

where

is flux $[ms^{-1}]$ for 3d, $[m^2s^{-1}]$ for 2d and $[m^3s^{-1}]$ for 1d.
$\mathbf{K}$ is hydraulic tensor ( its orientation for 2d, 1d case is questionable )
$h = \frac{\pi}{\rho_0 g}+z$ is pressure head, $\pi, \rho_0, g$ are the pressure, water density, and acceleration of gravity , respectively. Assumes gravity force acts counter to the direction of the axis.
is destity or gravity variability coefficient. For density driven flow it should be
$R = \frac{\rho}{\rho_0} -1 = \rho_0^{-1}\sum_{i=1}^s c_i$
where is concentration in $kg m^{-3}$ .

The time key is optional, when not specified the equation is forced to steady regime. Using Steady TimeGovernor which have no dt constraints. Model for transition coefficients due to Martin, Jaffre, Roberts (see manual for full reference)

TODO:

how we can reuse field values computed during assembly

TODO: Remove in future. It is supposed not to be improved anymore, however it is kept functioning aside of the LMH lumped version until the LMH version is stable and optimized.

Definition at line 128 of file darcy_flow_mh.hh.

Constructor & Destructor Documentation

DarcyMH::DarcyMH	(	Mesh &	mesh_in,
		const Input::Record	in_rec,
		TimeGovernor *	tm = `nullptr`
	)

CREATE AND FILL GLOBAL MH MATRIX OF THE WATER MODEL.

Parameters {Solver,NSchurs} number of performed Schur complements (0,1,2) for water flow MH-system

Definition at line 318 of file darcy_flow_mh.cc.

DarcyMH::~DarcyMH ( )

overridevirtual

Definition at line 1370 of file darcy_flow_mh.cc.

Member Function Documentation

void DarcyMH::allocate_mh_matrix ( )

protected

Part of per element assembly that is specific for MH and LMH respectively.

This implemnets MH case:

compute conductivity scaling
assembly source term
no time term, managed by diagonal extraction etc. Allocates linear system matrix for MH. TODO:
use general preallocation methods in DofHandler

Definition at line 800 of file darcy_flow_mh.cc.

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void DarcyMH::assembly_linear_system ( )

protectedvirtual

Assembly or update whole linear system.

Definition at line 1063 of file darcy_flow_mh.cc.

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void DarcyMH::assembly_mh_matrix ( MultidimAssembly & assembler )

protected

Assembles linear system matrix for MH. Element by element assembly is done using dim-template assembly class. Assembles only steady part of the equation. TODO:

include time term
add support for Robin type sources
support for nonlinear solvers - assembly either residual vector, matrix, or both (using FADBAD++)

Definition at line 776 of file darcy_flow_mh.cc.

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void DarcyMH::assembly_source_term ( )

protectedvirtual

Source term is implemented differently in LMH version.

Definition at line 913 of file darcy_flow_mh.cc.

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void DarcyMH::create_linear_system ( Input::AbstractRecord rec )

protected

Create and preallocate MH linear system (including matrix, rhs and solution vectors)

Definition at line 950 of file darcy_flow_mh.cc.

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EqData& DarcyMH::data ( )

inline

Definition at line 247 of file darcy_flow_mh.hh.

DarcyMH::DECLARE_EXCEPTION	(	ExcSolverDiverge	,
		<< "Diverged nonlinear solver. Reason: "<< EI_Reason::val
	)

DarcyMH::DECLARE_INPUT_EXCEPTION	(	ExcMissingTimeGovernor	,
		<< "Missing the key 'time'	,
		obligatory for the transient problems."
	)

std::vector< int > DarcyMH::get_component_indices_vec ( unsigned int component ) const

protected

Get vector of all DOF indices of given component (0..side, 1..element, 2..edge)

Definition at line 1523 of file darcy_flow_mh.cc.

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const it::Record & DarcyMH::get_input_type ( )

static

Definition at line 130 of file darcy_flow_mh.cc.

const it::Selection & DarcyMH::get_mh_mortar_selection ( )

static

Selection for enum MortarMethod.

Definition at line 77 of file darcy_flow_mh.cc.

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void DarcyMH::init_eq_data ( )

Definition at line 371 of file darcy_flow_mh.cc.

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void DarcyMH::initialize ( )

overridevirtual

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 from EquationBase.

Definition at line 411 of file darcy_flow_mh.cc.

void DarcyMH::initialize_specific ( )

virtual

Definition at line 514 of file darcy_flow_mh.cc.

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void DarcyMH::modify_system ( )

protected

Definition at line 1484 of file darcy_flow_mh.cc.

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void DarcyMH::output_data ( void )

overridevirtual

Write computed fields.

Reimplemented from EquationBase.

Definition at line 748 of file darcy_flow_mh.cc.

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void DarcyMH::postprocess ( )

virtual

postprocess velocity field (add sources)

Definition at line 714 of file darcy_flow_mh.cc.

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void DarcyMH::prepare_new_time_step ( )

protected

Definition at line 709 of file darcy_flow_mh.cc.

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void DarcyMH::print_matlab_matrix ( string matlab_file )

protected

Print darcy flow matrix in matlab format into a file.

Definition at line 1118 of file darcy_flow_mh.cc.

void DarcyMH::read_initial_condition ( )

protectedvirtual

Read initial condition into solution vector. Must be called after create_linear_system.

For the LMH scheme we have to be able to save edge pressures in order to restart simulation or use results of one simulation as initial condition for other one.

Definition at line 1425 of file darcy_flow_mh.cc.

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void DarcyMH::set_extra_source ( const Field< 3, FieldValue< 3 >::Scalar > & extra_src )

inline

Definition at line 252 of file darcy_flow_mh.hh.

void DarcyMH::set_extra_storativity ( const Field< 3, FieldValue< 3 >::Scalar > & extra_stor )

inline

Definition at line 249 of file darcy_flow_mh.hh.

void DarcyMH::set_mesh_data_for_bddc ( LinSys_BDDC * bddc_ls )

protected

type for storage of global to local map

We need:

local to global element map (possibly mesh->el_4_loc
inet, nnet - local dof numbers per element, local numbering of only those dofs that are on owned elements
1. collect DH local dof indices on elements, manage map from DH local indices to BDDC local dof indices
2. map collected DH indices to BDDC indices using the map
local BDDC dofs to global dofs, use DH to BDDC map with DH local to global map
XYZ - permuted, collect in main loop into array of size of all DH local dofs, compress and rearrange latter
element_permeability - in main loop

Definition at line 1191 of file darcy_flow_mh.cc.

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void DarcyMH::setup_time_term ( )

protectedvirtual

Definition at line 1441 of file darcy_flow_mh.cc.

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double DarcyMH::solution_precision ( ) const

protectedvirtual

Return a norm of residual vector. TODO: Introduce Equation::compute_residual() updating residual field, standard part of EqData.

Definition at line 764 of file darcy_flow_mh.cc.

void DarcyMH::solve_nonlinear ( )

protected

Solve method common to zero_time_step and update solution.

Definition at line 625 of file darcy_flow_mh.cc.

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void DarcyMH::solve_time_step ( bool output = true )

Solve the problem without moving to next time and without output.

Definition at line 568 of file darcy_flow_mh.cc.

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const it::Record & DarcyMH::type_field_descriptor ( )

static

Definition at line 115 of file darcy_flow_mh.cc.

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DarcyMH::TYPEDEF_ERR_INFO	(	EI_Reason	,
		string
	)

void DarcyMH::update_solution ( void )

overridevirtual

Calculation of the next time step and its output.

Reimplemented from EquationBase.

Definition at line 553 of file darcy_flow_mh.cc.

void DarcyMH::zero_time_step ( )

overridevirtual

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 from EquationBase.

Definition at line 517 of file darcy_flow_mh.cc.

bool DarcyMH::zero_time_term ( bool time_global = false )

protectedvirtual

Returns true is the fields involved in the time term have values that makes the time term zero. For time_global==true, it returns true if there are no field descriptors in the input list, so the fields )of the time ter) have their default values for whole simulation. If time_global==false (default), only the actual values are considered.

Definition at line 616 of file darcy_flow_mh.cc.

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Friends And Related Function Documentation

friend class DarcyFlowMHOutput

friend

Definition at line 369 of file darcy_flow_mh.hh.

Member Data Documentation

std::shared_ptr<Balance> DarcyMH::balance_

protected

Definition at line 341 of file darcy_flow_mh.hh.

std::shared_ptr<EqData> DarcyMH::data_

protected

Definition at line 367 of file darcy_flow_mh.hh.

bool DarcyMH::data_changed_

protected

Definition at line 351 of file darcy_flow_mh.hh.

unsigned int DarcyMH::max_n_it_

protected

Definition at line 356 of file darcy_flow_mh.hh.

unsigned int DarcyMH::min_n_it_

protected

Definition at line 355 of file darcy_flow_mh.hh.

int DarcyMH::n_schur_compls

protected

Definition at line 346 of file darcy_flow_mh.hh.

Vec DarcyMH::new_diagonal

protected

Definition at line 364 of file darcy_flow_mh.hh.

unsigned int DarcyMH::nonlinear_iteration_

protected

Definition at line 357 of file darcy_flow_mh.hh.

DarcyFlowMHOutput* DarcyMH::output_object

protected

Definition at line 343 of file darcy_flow_mh.hh.

Vec DarcyMH::previous_solution

protected

Definition at line 365 of file darcy_flow_mh.hh.

const int DarcyMH::registrar

staticprivate

Initial value:

=
        Input::register_class< DarcyMH, Mesh &, const Input::Record >("Flow_Darcy_MH") +
        DarcyMH::get_input_type().size()

Registrar of class to factory.

Definition at line 375 of file darcy_flow_mh.hh.

LinSys* DarcyMH::schur0

protected

Definition at line 360 of file darcy_flow_mh.hh.

int DarcyMH::size

protected

Definition at line 345 of file darcy_flow_mh.hh.

Vec DarcyMH::steady_diagonal

protected

Definition at line 362 of file darcy_flow_mh.hh.

Vec DarcyMH::steady_rhs

protected

Definition at line 363 of file darcy_flow_mh.hh.

double DarcyMH::tolerance_

protected

Definition at line 354 of file darcy_flow_mh.hh.

bool DarcyMH::use_steady_assembly_

protected

Definition at line 350 of file darcy_flow_mh.hh.

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

/opt/flow123d/flow123d/src/flow/darcy_flow_mh.hh
/opt/flow123d/flow123d/src/flow/darcy_flow_mh.cc

Classes

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Static Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation