This class implements a liquid water condensation and evaporation term. More...

#include <liquid_water_source_terms.h>

Inheritance diagram for FuelCellShop::Equation::LiquidSourceEquation< dim >:

Collaboration diagram for FuelCellShop::Equation::LiquidSourceEquation< dim >:

Public Member Functions
Constructors, destructor, and initalization
	LiquidSourceEquation (FuelCell::SystemManagement &system_management, boost::shared_ptr< FuelCell::ApplicationCore::ApplicationData > data=boost::shared_ptr< FuelCell::ApplicationCore::ApplicationData >())
	Constructor. More...

virtual	~LiquidSourceEquation ()
	Destructor. More...

virtual void	declare_parameters (ParameterHandler &param) const
	Declare parameters. More...

virtual void	initialize (ParameterHandler &param)
	Initialize parameters. More...

Local CG FEM based assemblers
virtual void	assemble_cell_matrix (FuelCell::ApplicationCore::MatrixVector &cell_matrices, const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &cell_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble local cell matrix. More...

virtual void	assemble_cell_residual (FuelCell::ApplicationCore::FEVector &cell_rhs, const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &cell_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble local cell residual. More...

Accessors and info
virtual void	print_equation_info () const
	The function prints out the equation's info about the internal coupling equations with the liquid water source terms. More...

double	get_kevap () const
	Returns evaporation rate constant, $\left[ \frac{mol}{Pa \cdot cm^2 \cdot s}\right]$ . More...

double	get_kcond () const
	Returns condensation rate constant, $\left[ \frac{mol}{Pa \cdot cm^2 \cdot s}\right]$ . More...

void	set_relative_humility (double const x_wv)
	Set the relative humility value from the operating condition class (using get_x_wv) More...

virtual void	adjust_internal_cell_couplings (std::vector< couplings_map > &) const
	This function is used to adjust `std::vector` `<` `internal_cell_couplings` `>`, which is generated after getting `internal_cell_couplings` from all the equations being used in the application. More...

Public Member Functions inherited from FuelCellShop::Equation::EquationBase< dim >
virtual void	assemble_bdry_matrix (FuelCell::ApplicationCore::MatrixVector &bdry_matrices, const typename FuelCell::ApplicationCore::DoFApplication< dim >::FaceInfo &bdry_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble local boundary matrix. More...

virtual void	assemble_bdry_residual (FuelCell::ApplicationCore::FEVector &bdry_residual, const typename FuelCell::ApplicationCore::DoFApplication< dim >::FaceInfo &bdry_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble local boundary residual. More...

const couplings_map &	get_internal_cell_couplings () const
	This function returns `internal_cell_couplings` of a derived equation class. More...

const couplings_map &	get_internal_flux_couplings () const
	This function returns `internal_flux_couplings` (DG FEM only) of a derived equation class. More...

const component_materialID_value_map &	get_component_materialID_value () const
	This function returns `component_materialID_value` of a derived equation class. More...

const component_boundaryID_value_map &	get_component_boundaryID_value () const
	This function returns `component_boundaryID_value` of a derived equation class. More...

const std::vector< BoundaryType > &	get_boundary_types () const
	This function returns `boundary_types` of a derived equation class. More...

const std::vector< std::vector < BoundaryType > > &	get_multi_boundary_types () const
	This function returns `multi_boundary_types` of a derived equation class. More...

const std::vector< OutputType > &	get_output_types () const
	This function returns `output_types` of a derived equation class. More...

const std::vector< std::vector < OutputType > > &	get_multi_output_types () const
	This function returns `multi_output_types` of a derived equation class. More...

const std::string &	get_equation_name () const
	This function returns `equation_name` of a derived equation class. More...

const std::vector< unsigned int > &	get_matrix_block_indices () const
	This function returns `matrix_block_indices` of a derived equation class. More...

const std::vector< unsigned int > &	get_residual_indices () const
	This function returns `residual_indices` of a derived equation class. More...

Protected Member Functions
void	get_temp_related_parameters (double Temp, double c_pressure, double &psat, double &dpsat_dT, double &h_lv, double &dhlv_dT, double &Kelvin_factor, double &psat_kelvin, double &dpsat_kelvin_dpc, double &dpsat_kelvin_dT, FuelCellShop::Material::WaterVapor water) const
	Inline function to reduce the repeatability of the code This function is used to compute Kelvin saturation pressure, latent heat of water and all the derivates with respect to Kelvin saturation pressure. More...

Local CG FEM based assemblers - make_ functions
virtual void	make_assemblers_generic_constant_data ()
	This function computes Local CG FEM based assemblers - constant data (generic). More...

virtual void	make_assemblers_cell_constant_data (const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &cell_info)
	This function computes Local CG FEM based assemblers - constant data (cell) and allocates the memory for `shape` `functions`, `shape` `function` `gradients`, and `JxW_cell` in Local CG FEM based assemblers - variable data (cell) . More...

virtual void	make_assemblers_cell_variable_data (const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &cell_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	This function computes Local CG FEM based assemblers - variable data (cell) . More...

Other make_ functions
virtual void	make_boundary_types ()
	This function fills out `boundary_types`. More...

virtual void	make_output_types ()
	This function fills out `output_types`. More...

Protected Member Functions inherited from FuelCellShop::Equation::EquationBase< dim >
	EquationBase (FuelCell::SystemManagement &sys_management, boost::shared_ptr< FuelCell::ApplicationCore::ApplicationData > data=boost::shared_ptr< FuelCell::ApplicationCore::ApplicationData >())
	Constructor. More...

virtual	~EquationBase ()
	Destructor. More...

virtual void	set_parameters (const std::vector< std::string > &name_dvar, const std::vector< double > &value_dvar, ParameterHandler &param)
	Set parameters using the parameter file, in order to run parametric/optimization studies. More...

virtual void	make_assemblers_bdry_constant_data (const typename FuelCell::ApplicationCore::DoFApplication< dim >::FaceInfo &bdry_info)

virtual void	make_assemblers_bdry_variable_data (const typename FuelCell::ApplicationCore::DoFApplication< dim >::FaceInfo &bdry_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)

void	select_cell_assemblers (const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &cell_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	This routine is used to select the make_assembly routines that need to be called inside assemble_cell_matrix to compute. More...

virtual void	make_internal_cell_couplings ()
	This function fills out `internal_cell_couplings` of a derived equation class. More...

virtual void	make_internal_flux_couplings ()
	This function fills out `internal_flux_couplings` (DG FEM only) of a derived equation class. More...

virtual void	make_component_materialID_value ()
	This function fills out `component_materialID_value` of a derived equation class. More...

virtual void	make_component_boundaryID_value ()
	This function fills out `component_boundaryID_value` of a derived equation class. More...

virtual void	make_multi_boundary_types ()
	This function fills out `multi_boundary_types` of a derived equation class. More...

virtual void	make_multi_output_types ()
	This function fills out `multi_output_types` of a derived equation class. More...

virtual void	make_matrix_block_indices ()
	This function is only needed to provide the last argument to dealII_to_appframe. More...

virtual void	make_residual_indices ()
	This function is only needed to provide the last argument to dealII_to_appframe. More...

virtual void	assemble_cell_Jacobian_matrix (FuelCell::ApplicationCore::MatrixVector &cell_matrices, const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &cell_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble the local Jacobian Matrix for Non-Linear problems. More...

virtual void	assemble_bdry_Jacobian_matrix (FuelCell::ApplicationCore::MatrixVector &bdry_matrices, const typename FuelCell::ApplicationCore::DoFApplication< dim >::FaceInfo &bdry_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble local Jacobian boundary matrix for Non-Linear problems. More...

virtual void	assemble_cell_linear_matrix (FuelCell::ApplicationCore::MatrixVector &cell_matrices, const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &cell_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble the local cell matrix for Linear problems. More...

virtual void	assemble_cell_residual_rhs (FuelCell::ApplicationCore::FEVector &cell_residual, const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &cell_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble local cell RHS for nonlinear problems. More...

virtual void	assemble_cell_linear_rhs (FuelCell::ApplicationCore::FEVector &cell_residual, const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &cell_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble local cell RHS for Linear problems. More...

virtual void	assemble_bdry_linear_matrix (FuelCell::ApplicationCore::MatrixVector &bdry_matrices, const typename FuelCell::ApplicationCore::DoFApplication< dim >::FaceInfo &bdry_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble local boundary matrix for linear problems. More...

virtual void	assemble_bdry_linear_rhs (FuelCell::ApplicationCore::FEVector &bdry_residual, const typename FuelCell::ApplicationCore::DoFApplication< dim >::FaceInfo &bdry_info, FuelCellShop::Layer::BaseLayer< dim > *const layer)
	Assemble local boundary RHS for linear problems. More...

void	standard_to_block_wise (FullMatrix< double > &target) const
	This function changes the order of dealii::FullMatrix<double> `target` from standard to block-wise. More...

void	standard_to_block_wise (Vector< double > &target) const
	This function changes the order of dealii::Vector<double> `target` from standard to block-wise. More...

void	dealII_to_appframe (FuelCell::ApplicationCore::MatrixVector &dst, const FullMatrix< double > &src, const std::vector< unsigned int > &matrix_block_indices) const
	This function converts the standard ordered structure dealii::FullMatrix<double> `src` into the block-wise ordered structure FuelCell::ApplicationCore::MatrixVector `dst`. More...

void	dealII_to_appframe (FuelCell::ApplicationCore::FEVector &dst, const Vector< double > &src, const std::vector< unsigned int > &residual_indices) const
	This function converts the standard ordered structure dealii::Vector<double> `src` into the block-wise ordered structure FuelCell::ApplicationCore::FEVector `dst`. More...

bool	belongs_to_boundary (const unsigned int &tria_boundary_id, const unsigned int &param_boundary_id) const
	This function returns `true` if a boundary indicator of an external face on the triangulation coincides with a boundary indicator defined in the parameters file of a derived equation class. More...

void	print_caller_name (const std::string &caller_name) const
	This function is used to print out the name of another function that has been declared in the scope of this class, but not yet been implemented. More...

Protected Attributes
bool	cell_residual_counter
	Counter set to TRUE when `cell_residual` is being assembled. More...

unsigned int	last_iter_cell
	Variable used to store the index in cell_info->global_data of the previous Newton solution The solution at the previous iteration is used to compute cell_matrix and cell_residual. More...

double	T_constant
	This tempearture is used when not solving temperature as the solution variable. More...

double	Relative_humility
	This is used to return relative humility the when not solving water vapor as the solution variable. More...

bool	Relative_humility_is_set
	This is used to check if relative humility is set when not solving water vapor as the solution variable. More...

Generic Constant Data
std::map< unsigned int, double >	capillary_pressure_current_flux_map

VariableInfo	p_liquid_water
	VariableInfo structure corresponding to `"liquid_capillary_pressure"`. More...

VariableInfo	x_water
	VariableInfo structure corresponding to `"water_molar_fraction"`. More...

VariableInfo	t_rev
	VariableInfo structure corresponding to `"temperature_of_REV"`. More...

unsigned int	fickswater_blockindex_xwater
	Block index for `"water_molar_fraction"` corresponding to "Ficks Transport Equation - water". More...

unsigned int	fickswater_blockindex_pliquid
	Block index for `"liquid_capillary_pressure"` corresponding to "Ficks Transport Equation - water". More...

unsigned int	fickswater_blockindex_trev
	Block index for `"temperature_of_REV"` corresponding to "Ficks Transport Equation - water". More...

unsigned int	thermal_blockindex_xwater
	Block index for `"water_molar_fraction"` corresponding to "Thermal Transport Equation". More...

unsigned int	thermal_blockindex_pliquid
	Block index for `"liquid_capillary_pressure"` corresponding to "Thermal Transport Equation". More...

unsigned int	thermal_blockindex_trev
	Block index for `"temperature_of_REV"` corresponding to "Thermal Transport Equation". More...

double	M_water
	Molar weight of water in grams/mole. More...

double	k_e
	Evaporation rate constant, $\left[ \frac{mol}{Pa \cdot cm^2 \cdot s}\right]$ . More...

double	k_c
	Condensation rate constant, $\left[ \frac{mol}{Pa \cdot cm^2 \cdot s}\right]$ . More...

double	rho_l
	Density of liquid water, $\rho_l ~\left[ \frac{g}{cm^3} \right]$ . More...

Local CG FEM based assemblers - variable data (cell)
double	p_cell
	Total pressure $\left[ Pa \right]$ in the cell. More...

std::vector< double >	area_lv_cell
	Interfacial surface area per unit volume, $a_{lv} ~\left[ \frac{cm^2}{cm^3} \right]$ , at all quadrature points in the cell. More...

std::vector< double >	darea_lv_dp_cell
	$\frac{ \partial a_{lv}}{\partial p_c}$ , at all quadrature points in the cell. More...

std::vector< std::vector < double > >	phi_p_cell
	$\mathbf{p_c}$ shape functions. More...

std::vector< std::vector < double > >	phi_xwater_cell
	$\mathbf{x_{H_2O}}$ shape functions. More...

std::vector< std::vector < double > >	phi_T_cell
	$\mathbf{T}$ shape functions. More...

Protected Attributes inherited from FuelCellShop::Equation::EquationBase< dim >
unsigned int	dofs_per_cell
	Number of degrees of freedom per cell. More...

unsigned int	n_q_points_cell
	Number of quadrature points per cell. More...

unsigned int	n_q_points_bdry
	Number of quadrature points per boundary. More...

DoFHandler< dim > ::active_cell_iterator	cell
	Currently active DoFHandler<dim> active cell iterator. More...

DoFHandler< dim > ::active_face_iterator	bdry
	Currently active DoFHandler<dim> active boundary iterator. More...

std::vector< double >	JxW_cell
	Jacobian of mapping by Weight in the quadrature points of a cell. More...

std::vector< double >	JxW_bdry
	Jacobian of mapping by Weight in the quadrature points of a boundary. More...

std::vector< Point< dim > >	normal_vectors
	Normal vectors in the quadrature points of a boundary. More...

std::vector< std::vector < Point< dim > > >	tangential_vectors
	Tangential vectors in the quadrature points of a boundary. More...

FuelCell::SystemManagement *	system_management
	Pointer to the external YourApplication<dim>::system_management object. More...

couplings_map	internal_cell_couplings
	This object contains the info on how the equations and solution variables of a derived equation class are coupled. More...

couplings_map	internal_flux_couplings
	This object contains the info on how the "X" and "Y" of a derived equation class are coupled (DG FEM only). More...

component_materialID_value_map	component_materialID_value
	This object reflects the following structure (see FuelCell::InitialAndBoundaryData namespace docs): More...

component_boundaryID_value_map	component_boundaryID_value
	This object reflects the following structure (see FuelCell::InitialAndBoundaryData namespace docs): More...

std::vector< BoundaryType >	boundary_types
	The list of boundary types of a derived equation class. More...

std::vector< std::vector < BoundaryType > >	multi_boundary_types
	The list of multiple boundary types of a derived equation class. More...

std::vector< OutputType >	output_types
	The list of output types of a derived equation class. More...

std::vector< std::vector < OutputType > >	multi_output_types
	The list of multiple output types of a derived equation class. More...

std::string	equation_name
	The name of a derived equation class. More...

std::string	name_base_variable
	Const std::string member storing name of the base solution variable corresponding to the equation represented by this class. More...

std::vector< unsigned int >	matrix_block_indices
	The system matrix block indices (a derived equation class) drawn from the global structure (a derived equation class + other active equation classes included into the computation). More...

std::vector< unsigned int >	residual_indices
	The residual indices (a derived equation class) drawn from the global structure (a derived equation class + other active equation classes included into the computation). More...

std::vector< bool >	counter
	This vector contains the collection of internal "counters" used by the derived equation classes. More...

EquationFlags	assemble_flags
	This vector contains a collection of internal flags to tell derived equation classes what needs to be re-computed. More...

boost::shared_ptr < FuelCell::ApplicationCore::ApplicationData >	data
	Data object for the application data to be passed to the equation classes. More...

std::string	solution_vector_name
	The name of the solution vector in FEVectors. More...

std::string	residual_vector_name
	The name of the residual vector name in FEVectors. More...

Additional Inherited Members
Public Attributes inherited from FuelCellShop::Equation::EquationBase< dim >
bool	variable_initial_data
	`true`, if variable initial data is prescribed on a part of the domain. More...

bool	variable_boundary_data
	`true`, if variable Dirichlet boundary conditions are prescribed on a part of the boundary. More...

Detailed Description

template<int dim>
class FuelCellShop::Equation::LiquidSourceEquation< dim >

This class implements a liquid water condensation and evaporation term.

It is to be noted that this equation is suggested to be solved alongside Thermal Transport Equation and Ficks Transport Equation - water. Thus these two equations are necessary while considering this equation class.

It is solved with respect to:

$\mathbf{p_c}$ (capillary_pressure ), $\mathbf{T}$ (Temperature ) and $\mathbf{x_{H2O}}$ (water_molar_fraction )

This equation can be written as:

$f(p_c) = K_{e/c} ~a_{lv} ~M_{H_2O} \left( \left( p_{H_2O,v} - p_{sat}(T) \right) / p_{sat}(T) \right) \quad \in \quad \Omega$

$f(T) = K_{e/c} ~a_{lv} ~h_{lv} \left( \left( p_{H_2O,v} - p_{sat}(T) \right) / p_{sat}(T) \right) \quad \in \quad \Omega$

$f(p_c) = K_{e/c} ~a_{lv} \left( \left( p_{H_2O,v} - p_{sat}(T) \right) / p_{sat}(T) \right) \quad \in \quad \Omega$

$K_{e/c}$ is the evaporation-condensation (phase change) rate constant $\left[ \frac{mol}{Pa \cdot cm^2 \cdot s} \right]$ .
$a_{lv}$ is the liquid-vapour interfacial surface area per unit volume $\left[ \frac{cm^2}{cm^3} \right]$ .
$M_{H_2O}$ is the molar weight of water $\left[ \frac{g}{mol} \right]$ .
$p_{H_2O,v}$ is water vapour partial pressure $\left[ Pa \right]$ , which is a function of water_molar_fraction, $x_{H_2O}$ .
$p_{sat}$ is the saturation pressure $\left[ Pa \right]$ . This value is a function of (temperature_of_REV ), .
$h_{lv}$ is the latent heat of phase change.

Remarks

There is no provision to specify boundary indicators for No liquid water flux or Symmetric boundary conditions, as FEM formulation automatically implies a particular boundary is one of these cases, by default.
This class works with the following layer classes only:
- FuelCellShop::Layer::GasDiffusionLayer<dim>
- FuelCellShop::Layer::MicroPorousLayer<dim>
- FuelCellShop::Layer::CatalystLayer<dim>

We solve the whole problem by linearizing the governing equation at each Newton iteration with subsequent CG FEM discretization in space. The class contains the necessary class members to add the necessary contributions to cell_matrix and cell_residual to the governing equations used to analyze lambda transport,

Usage Details:

For users:

In the input file, the evaporation and condensation rate constants need to be provided as follows:

* subsection Liquid Water Source Terms Equation
*   set Evaporation rate constant, [mol/(Pa-cm^2-s)] = 1.0e-7
*   set Condensation rate constant, [mol/(Pa-cm^2-s)] = 1.0e-8
* end
* 

For developers:

* // Creating Equation object (in Application Header file)
* FuelCellShop::Equation::LiquidSourceEquation<dim> liquid_source_terms;
* 
* // Declare parameters in application
* liquid_source_terms.declare_parameters(param);
* 
* // Initialize in application
* liquid_source_terms.initialize(param);
* 
* // Adjust the coupling terms and adding liquid source term into the equations
* std::vector<couplings_map> tmp;
* liquid_source_terms.adjust_internal_cell_couplings(tmp);
* 
* // cell_matrix in application
* // Do a check against layer and it should match with the layers currently working for this equation class.
* // for eg: CCL is FuelCellShop::Layer::HomogeneousCL<dim> object.
* liquid_source_terms.assemble_cell_matrix(cell_matrices, cell_info, &CCL);
* 
* // cell_residual in application
* liquid_source_terms.assemble_cell_residual(cell_vector, cell_info, &CCL); 
* 

Note: This class assembles the phase change source/sink term for the water vapour transport inside the layers. Also heat released/absorbed due to condensation/evaporation is also automatically assembled for the thermal transport equation.

Author: J. Zhou, Marc Secanell, 2015

Constructor & Destructor Documentation

template<int dim>

FuelCellShop::Equation::LiquidSourceEquation< dim >::LiquidSourceEquation	(	FuelCell::SystemManagement &	system_management,
		boost::shared_ptr< FuelCell::ApplicationCore::ApplicationData >	data = `boost::shared_ptr< FuelCell::ApplicationCore::ApplicationData >()`
	)

Constructor.

template<int dim>

virtual FuelCellShop::Equation::LiquidSourceEquation< dim >::~LiquidSourceEquation ( )

virtual

Destructor.

Member Function Documentation

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::adjust_internal_cell_couplings ( std::vector< couplings_map > & ) const

virtual

This function is used to adjust std::vector < internal_cell_couplings >, which is generated after getting internal_cell_couplings from all the equations being used in the application.

Note: It's very important to use this function, if we are considering source terms due to water sorption/desorption in the catalyst layers. It's also noteworthy that this function should be used after whole vector of internal_cell_couplings is created, and BEFORE make_cell_couplings of SystemManagement is called.

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::assemble_cell_matrix	(	FuelCell::ApplicationCore::MatrixVector &	cell_matrices,
		const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &	cell_info,
		FuelCellShop::Layer::BaseLayer< dim > *const	layer
	)

virtual

Assemble local cell matrix.

Reimplemented from FuelCellShop::Equation::EquationBase< dim >.

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::assemble_cell_residual	(	FuelCell::ApplicationCore::FEVector &	cell_rhs,
		const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &	cell_info,
		FuelCellShop::Layer::BaseLayer< dim > *const	layer
	)

virtual

Assemble local cell residual.

Reimplemented from FuelCellShop::Equation::EquationBase< dim >.

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::declare_parameters ( ParameterHandler & param ) const

virtual

Declare parameters.

Reimplemented from FuelCellShop::Equation::EquationBase< dim >.

template<int dim>

double FuelCellShop::Equation::LiquidSourceEquation< dim >::get_kcond ( ) const

inline

Returns condensation rate constant, $\left[ \frac{mol}{Pa \cdot cm^2 \cdot s}\right]$ .

References FuelCellShop::Equation::LiquidSourceEquation< dim >::k_c.

template<int dim>

double FuelCellShop::Equation::LiquidSourceEquation< dim >::get_kevap ( ) const

inline

Returns evaporation rate constant, $\left[ \frac{mol}{Pa \cdot cm^2 \cdot s}\right]$ .

References FuelCellShop::Equation::LiquidSourceEquation< dim >::k_e.

template<int dim>

void FuelCellShop::Equation::LiquidSourceEquation< dim >::get_temp_related_parameters	(	double	Temp,
		double	c_pressure,
		double &	psat,
		double &	dpsat_dT,
		double &	h_lv,
		double &	dhlv_dT,
		double &	Kelvin_factor,
		double &	psat_kelvin,
		double &	dpsat_kelvin_dpc,
		double &	dpsat_kelvin_dT,
		FuelCellShop::Material::WaterVapor	water
	)		const

inlineprotected

Inline function to reduce the repeatability of the code This function is used to compute Kelvin saturation pressure, latent heat of water and all the derivates with respect to Kelvin saturation pressure.

References Units::convert(), FuelCellShop::Material::LiquidWater::deriv_latentVap_heat(), FuelCellShop::Material::PureGas::get_Dwater_vapor_saturation_pressure_Dtemperature(), FuelCellShop::Material::PureGas::get_water_vapor_saturation_pressure(), FuelCellShop::Material::LiquidWater::latentVap_heat(), FuelCellShop::Equation::LiquidSourceEquation< dim >::M_water, Units::PER_C_UNIT3, Units::PER_UNIT2, Constants::R(), and FuelCellShop::Equation::LiquidSourceEquation< dim >::rho_l.

Here is the call graph for this function:

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::initialize ( ParameterHandler & param )

virtual

Initialize parameters.

This class will call make_internal_cell_couplings and make_boundary_types.

Reimplemented from FuelCellShop::Equation::EquationBase< dim >.

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::make_assemblers_cell_constant_data ( const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo & cell_info )

protectedvirtual

This function computes Local CG FEM based assemblers - constant data (cell) and allocates the memory for shape functions, shape function gradients, and JxW_cell in Local CG FEM based assemblers - variable data (cell) .

Reimplemented from FuelCellShop::Equation::EquationBase< dim >.

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::make_assemblers_cell_variable_data	(	const typename FuelCell::ApplicationCore::DoFApplication< dim >::CellInfo &	cell_info,
		FuelCellShop::Layer::BaseLayer< dim > *const	layer
	)

protectedvirtual

This function computes Local CG FEM based assemblers - variable data (cell) .

Reimplemented from FuelCellShop::Equation::EquationBase< dim >.

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::make_assemblers_generic_constant_data ( )

protectedvirtual

This function computes Local CG FEM based assemblers - constant data (generic).

Reimplemented from FuelCellShop::Equation::EquationBase< dim >.

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::make_boundary_types ( )

inlineprotectedvirtual

This function fills out boundary_types.

Currently, NOT IMPLEMENTED.

Reimplemented from FuelCellShop::Equation::EquationBase< dim >.

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::make_output_types ( )

inlineprotectedvirtual

This function fills out output_types.

Currently, NOT IMPLEMENTED.

Reimplemented from FuelCellShop::Equation::EquationBase< dim >.

template<int dim>

virtual void FuelCellShop::Equation::LiquidSourceEquation< dim >::print_equation_info ( ) const

virtual

The function prints out the equation's info about the internal coupling equations with the liquid water source terms.

Reimplemented from FuelCellShop::Equation::EquationBase< dim >.

template<int dim>

void FuelCellShop::Equation::LiquidSourceEquation< dim >::set_relative_humility ( double const x_wv )

inline

Set the relative humility value from the operating condition class (using get_x_wv)

References FuelCellShop::Equation::LiquidSourceEquation< dim >::Relative_humility, and FuelCellShop::Equation::LiquidSourceEquation< dim >::Relative_humility_is_set.

Member Data Documentation

template<int dim>

std::vector<double> FuelCellShop::Equation::LiquidSourceEquation< dim >::area_lv_cell

protected

Interfacial surface area per unit volume, $a_{lv} ~\left[ \frac{cm^2}{cm^3} \right]$ , at all quadrature points in the cell.

template<int dim>

std::map<unsigned int, double> FuelCellShop::Equation::LiquidSourceEquation< dim >::capillary_pressure_current_flux_map

protected

template<int dim>

bool FuelCellShop::Equation::LiquidSourceEquation< dim >::cell_residual_counter

protected

Counter set to TRUE when cell_residual is being assembled.

This ensures that only effective transport properties are calculated, not their derivatives. (improves speed)

template<int dim>

std::vector<double> FuelCellShop::Equation::LiquidSourceEquation< dim >::darea_lv_dp_cell

protected

$\frac{ \partial a_{lv}}{\partial p_c}$ , at all quadrature points in the cell.

template<int dim>

unsigned int FuelCellShop::Equation::LiquidSourceEquation< dim >::fickswater_blockindex_pliquid

protected

Block index for "liquid_capillary_pressure" corresponding to "Ficks Transport Equation - water".

template<int dim>

unsigned int FuelCellShop::Equation::LiquidSourceEquation< dim >::fickswater_blockindex_trev

protected

Block index for "temperature_of_REV" corresponding to "Ficks Transport Equation - water".

template<int dim>

unsigned int FuelCellShop::Equation::LiquidSourceEquation< dim >::fickswater_blockindex_xwater

protected

Block index for "water_molar_fraction" corresponding to "Ficks Transport Equation - water".

template<int dim>

double FuelCellShop::Equation::LiquidSourceEquation< dim >::k_c

protected

Condensation rate constant, $\left[ \frac{mol}{Pa \cdot cm^2 \cdot s}\right]$ .

Referenced by FuelCellShop::Equation::LiquidSourceEquation< dim >::get_kcond().

template<int dim>

double FuelCellShop::Equation::LiquidSourceEquation< dim >::k_e

protected

Evaporation rate constant, $\left[ \frac{mol}{Pa \cdot cm^2 \cdot s}\right]$ .

Referenced by FuelCellShop::Equation::LiquidSourceEquation< dim >::get_kevap().

template<int dim>

unsigned int FuelCellShop::Equation::LiquidSourceEquation< dim >::last_iter_cell

protected

Variable used to store the index in cell_info->global_data of the previous Newton solution The solution at the previous iteration is used to compute cell_matrix and cell_residual.

template<int dim>

double FuelCellShop::Equation::LiquidSourceEquation< dim >::M_water

protected

Molar weight of water in grams/mole.

Referenced by FuelCellShop::Equation::LiquidSourceEquation< dim >::get_temp_related_parameters().

template<int dim>

double FuelCellShop::Equation::LiquidSourceEquation< dim >::p_cell

protected

Total pressure $\left[ Pa \right]$ in the cell.

template<int dim>

VariableInfo FuelCellShop::Equation::LiquidSourceEquation< dim >::p_liquid_water

protected

VariableInfo structure corresponding to "liquid_capillary_pressure".

template<int dim>

std::vector< std::vector<double> > FuelCellShop::Equation::LiquidSourceEquation< dim >::phi_p_cell

protected

$\mathbf{p_c}$ shape functions.

phi_p_cell [ q ] [ k ] denotes $ k $ -th $\mathbf{p_c}$ shape function computed in $ q $ -th quadrature point of the cell.

template<int dim>

std::vector< std::vector<double> > FuelCellShop::Equation::LiquidSourceEquation< dim >::phi_T_cell

protected

$\mathbf{T}$ shape functions.

phi_T_cell [ q ] [ k ] denotes $ k $ -th $\mathbf{T}$ shape function computed in $ q $ -th quadrature point of the cell.

template<int dim>

std::vector< std::vector<double> > FuelCellShop::Equation::LiquidSourceEquation< dim >::phi_xwater_cell

protected

$\mathbf{x_{H_2O}}$ shape functions.

phi_xwater_cell [ q ] [ k ] denotes $ k $ -th $\mathbf{x_{H_2O}}$ shape function computed in $ q $ -th quadrature point of the cell.

template<int dim>

double FuelCellShop::Equation::LiquidSourceEquation< dim >::Relative_humility

protected

This is used to return relative humility the when not solving water vapor as the solution variable.

Referenced by FuelCellShop::Equation::LiquidSourceEquation< dim >::set_relative_humility().

template<int dim>

bool FuelCellShop::Equation::LiquidSourceEquation< dim >::Relative_humility_is_set

protected

This is used to check if relative humility is set when not solving water vapor as the solution variable.

Referenced by FuelCellShop::Equation::LiquidSourceEquation< dim >::set_relative_humility().

template<int dim>

double FuelCellShop::Equation::LiquidSourceEquation< dim >::rho_l

protected

Density of liquid water, $\rho_l ~\left[ \frac{g}{cm^3} \right]$ .

Referenced by FuelCellShop::Equation::LiquidSourceEquation< dim >::get_temp_related_parameters().

template<int dim>

double FuelCellShop::Equation::LiquidSourceEquation< dim >::T_constant

protected

This tempearture is used when not solving temperature as the solution variable.

template<int dim>

VariableInfo FuelCellShop::Equation::LiquidSourceEquation< dim >::t_rev

protected

VariableInfo structure corresponding to "temperature_of_REV".

template<int dim>

unsigned int FuelCellShop::Equation::LiquidSourceEquation< dim >::thermal_blockindex_pliquid

protected

Block index for "liquid_capillary_pressure" corresponding to "Thermal Transport Equation".

template<int dim>

unsigned int FuelCellShop::Equation::LiquidSourceEquation< dim >::thermal_blockindex_trev

protected

Block index for "temperature_of_REV" corresponding to "Thermal Transport Equation".

template<int dim>

unsigned int FuelCellShop::Equation::LiquidSourceEquation< dim >::thermal_blockindex_xwater

protected

Block index for "water_molar_fraction" corresponding to "Thermal Transport Equation".

template<int dim>

VariableInfo FuelCellShop::Equation::LiquidSourceEquation< dim >::x_water

protected

VariableInfo structure corresponding to "water_molar_fraction".

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

liquid_water_source_terms.h

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

template<int dim> class FuelCellShop::Equation::LiquidSourceEquation< dim >

Usage Details:

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<int dim>
class FuelCellShop::Equation::LiquidSourceEquation< dim >