MaterialPropertyLib::VapourDiffusionFEBEX Class Reference

Detailed Description

FEBEX type Vapour diffusion.

The model was presented in [33].

The vapour diffusion can be described by [28], [29], [9]

\[ D_v=D_0 \left(\frac{T}{273.15}\right)^{n} D_{vr}, \]

where \(D_{0}\) is the base diffusion coefficient with default value \(2.16\cdot 10^{-5}\) \({\text m}^2 \text{Pa}/(\text{s}\text{K}^{n})\), \(n\) is the exponent with default value 1.8, \(D_{vr}\) is the the relative diffusion coefficient, and \(T\) is the temperature.

In the FEBEX type, \(D_{vr}\) takes the form of [33]

\[ D_{vr}=\tau \phi (1-S_L), \]

with \(\phi\), the porosity, \(S_L\), the liquid saturation, and \(\tau\), the tortuosity.

Note: In order to maintain consistency with the implementation of the computations of other vapor-related parameters, \( \phi (1 - S_L )\) is removed from the implementation for this class and is multiplied back in the local assembler.

Definition at line 51 of file VapourDiffusionFEBEX.h.

#include <VapourDiffusionFEBEX.h>

Inheritance diagram for MaterialPropertyLib::VapourDiffusionFEBEX:

Collaboration diagram for MaterialPropertyLib::VapourDiffusionFEBEX:

Public Member Functions
	VapourDiffusionFEBEX (std::string name, double const base_diffusion_coefficient, double const exponent)
void	checkScale () const override
PropertyDataType	value (VariableArray const &variable_array, ParameterLib::SpatialPosition const &pos, double const t, double const dt) const override
PropertyDataType	dValue (VariableArray const &variable_array, Variable const variable, ParameterLib::SpatialPosition const &pos, double const t, double const dt) const override
Public Member Functions inherited from MaterialPropertyLib::Property
virtual	~Property ()
virtual PropertyDataType	initialValue (ParameterLib::SpatialPosition const &pos, double const t) const
virtual PropertyDataType	value () const
virtual PropertyDataType	value (VariableArray const &variable_array, VariableArray const &variable_array_prev, ParameterLib::SpatialPosition const &pos, double const t, double const dt) const
virtual PropertyDataType	dValue (VariableArray const &variable_array, VariableArray const &variable_array_prev, Variable const variable, ParameterLib::SpatialPosition const &pos, double const t, double const dt) const
virtual PropertyDataType	d2Value (VariableArray const &variable_array, Variable const variable1, Variable const variable2, ParameterLib::SpatialPosition const &pos, double const t, double const dt) const
	Default implementation: 2nd derivative of any constant property is zero.
virtual void	setProperties (std::vector< std::unique_ptr< Phase > > const &phases)
	Default implementation:
void	setScale (std::variant< Medium *, Phase *, Component * > scale)
template<typename T >
T	initialValue (ParameterLib::SpatialPosition const &pos, double const t) const
template<typename T >
T	value () const
template<typename T >
T	value (VariableArray const &variable_array, VariableArray const &variable_array_prev, ParameterLib::SpatialPosition const &pos, double const t, double const dt) const
template<typename T >
T	value (VariableArray const &variable_array, ParameterLib::SpatialPosition const &pos, double const t, double const dt) const
template<typename T >
T	dValue (VariableArray const &variable_array, VariableArray const &variable_array_prev, Variable const variable, ParameterLib::SpatialPosition const &pos, double const t, double const dt) const
template<typename T >
T	dValue (VariableArray const &variable_array, Variable const variable, ParameterLib::SpatialPosition const &pos, double const t, double const dt) const
template<typename T >
T	d2Value (VariableArray const &variable_array, Variable const &variable1, Variable const &variable2, ParameterLib::SpatialPosition const &pos, double const t, double const dt) const

Private Attributes
double const	base_diffusion_coefficient_
double const	exponent_

Additional Inherited Members
Protected Attributes inherited from MaterialPropertyLib::Property
std::string	name_
PropertyDataType	value_
	The single value of a property.
PropertyDataType	dvalue_
std::variant< Medium *, Phase *, Component * >	scale_

Constructor & Destructor Documentation

VapourDiffusionFEBEX()

MaterialPropertyLib::VapourDiffusionFEBEX::VapourDiffusionFEBEX ( std::string name, double const base_diffusion_coefficient, double const exponent )

inline

Definition at line 54 of file VapourDiffusionFEBEX.h.

        : base_diffusion_coefficient_(base_diffusion_coefficient),
          exponent_(exponent)
    {
        name_ = std::move(name);
    }

References MaterialPropertyLib::name, and MaterialPropertyLib::Property::name_.

Member Function Documentation

checkScale()

void MaterialPropertyLib::VapourDiffusionFEBEX::checkScale ( ) const

inlineoverridevirtual

Reimplemented from MaterialPropertyLib::Property.

Definition at line 63 of file VapourDiffusionFEBEX.h.

    {
        if (!(std::holds_alternative<Phase*>(scale_) ||
              std::holds_alternative<Component*>(scale_)))
        {
            OGS_FATAL(
                "The property 'VapourDiffusionFEBEX' is "
                "implemented on the 'phase' and 'component' scale only.");
        }
    }

References OGS_FATAL, and MaterialPropertyLib::Property::scale_.

dValue()

PropertyDataType MaterialPropertyLib::VapourDiffusionFEBEX::dValue ( VariableArray const & variable_array, Variable const variable, ParameterLib::SpatialPosition const & pos, double const t, double const dt ) const

overridevirtual

This virtual method will compute the property derivative value based on the variables that are passed as arguments with the default implementation using empty variables array for the previous time step.

The default implementation of this method only returns the property value derivative without altering it.

Reimplemented from MaterialPropertyLib::Property.

Definition at line 35 of file VapourDiffusionFEBEX.cpp.

{
    const double T = variable_array.temperature;
 
    if (variable == Variable::temperature)
    {
        return exponent_ * base_diffusion_coefficient_ *
               std::pow(T / MaterialLib::PhysicalConstant::CelsiusZeroInKelvin,
                        exponent_ - 1.0) /
               MaterialLib::PhysicalConstant::CelsiusZeroInKelvin;
    }
    if (variable == Variable::liquid_saturation)
    {
        return 0.0;
    }
 
    OGS_FATAL(
        "VapourDiffusionFEBEX::dValue is implemented for derivatives with "
        "respect to temperature or saturation only.");
}

References base_diffusion_coefficient_, MaterialLib::PhysicalConstant::CelsiusZeroInKelvin, exponent_, MaterialPropertyLib::liquid_saturation, OGS_FATAL, MaterialPropertyLib::temperature, and MaterialPropertyLib::VariableArray::temperature.

value()

PropertyDataType MaterialPropertyLib::VapourDiffusionFEBEX::value ( VariableArray const & variable_array, ParameterLib::SpatialPosition const & pos, double const t, double const dt ) const

overridevirtual

This virtual method will compute the property value based on the variables that are passed as arguments with the default implementation using empty variables array for the previous time step.

Reimplemented from MaterialPropertyLib::Property.

Definition at line 23 of file VapourDiffusionFEBEX.cpp.

{
    const double T = variable_array.temperature;
 
    return base_diffusion_coefficient_ *
           std::pow(T / MaterialLib::PhysicalConstant::CelsiusZeroInKelvin,
                    exponent_);
}

References base_diffusion_coefficient_, MaterialLib::PhysicalConstant::CelsiusZeroInKelvin, exponent_, and MaterialPropertyLib::VariableArray::temperature.

Member Data Documentation

base_diffusion_coefficient_

double const MaterialPropertyLib::VapourDiffusionFEBEX::base_diffusion_coefficient_

private

Definition at line 85 of file VapourDiffusionFEBEX.h.

Referenced by dValue(), and value().

exponent_

double const MaterialPropertyLib::VapourDiffusionFEBEX::exponent_

private

Definition at line 86 of file VapourDiffusionFEBEX.h.

Referenced by dValue(), and value().

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

• MaterialLib/MPL/Properties/VapourDiffusion/VapourDiffusionFEBEX.h
• MaterialLib/MPL/Properties/VapourDiffusion/VapourDiffusionFEBEX.cpp