MaterialPropertyLib::VapourDiffusionFEBEX Class Reference

Detailed Description

FEBEX type Vapour diffusion.

The model was presented in [25].

The vapour diffusion can be described by [20], [21], [7]

$$D_v=2.16\cdot 10^{-5} \left(\frac{T}{273.15}\right)^{1.8} D_{vr},$$

where $D_{vr}$ is the the relative diffusion coefficient, and $T$ is the temperature.

In the FEBEX type, $D_{vr}$ takes the form of [25]

$$D_{vr}=\tau \phi (1 - S ),$$

with $\phi$, the porosity, $S$, the water saturation, and $\tau$ the tortuosity.

Definition at line 43 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 tortuosity)
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. More...
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	tortuosity_

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

Constructor & Destructor Documentation

VapourDiffusionFEBEX()

MaterialPropertyLib::VapourDiffusionFEBEX::VapourDiffusionFEBEX ( std::string  name, double const  tortuosity  )

inline

Definition at line 46 of file VapourDiffusionFEBEX.h.

        : tortuosity_(tortuosity)
    {
        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 52 of file VapourDiffusionFEBEX.h.

    {
        if (!std::holds_alternative<Phase*>(scale_))
        {
            OGS_FATAL(
                "The property 'VapourDiffusionFEBEX' is "
                "implemented on the 'phase' 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 46 of file VapourDiffusionFEBEX.cpp.

{
    const double S_L = std::clamp(
        std::get<double>(
            variable_array[static_cast<int>(Variable::liquid_saturation)]),
        0.0, 1.0);
 
    const double T = std::get<double>(
        variable_array[static_cast<int>(Variable::temperature)]);
    const double phi =
        std::get<double>(variable_array[static_cast<int>(Variable::porosity)]);
 
    if (variable == Variable::temperature)
    {
        const double D_vr = tortuosity_ * phi * (1 - S_L);
 
        return 1.8 * 2.16e-5 *
               std::pow(T / MaterialLib::PhysicalConstant::CelsiusZeroInKelvin,
                        0.8) *
               D_vr / MaterialLib::PhysicalConstant::CelsiusZeroInKelvin;
    }
    if (variable == Variable::liquid_saturation)
    {
        return -2.16e-5 *
               std::pow(T / MaterialLib::PhysicalConstant::CelsiusZeroInKelvin,
                        1.8) *
               tortuosity_ * phi;
    }
 
    OGS_FATAL(
        "VapourDiffusionFEBEX::dValue is implemented for derivatives with "
        "respect to temperature or saturation only.");
}

References MaterialLib::PhysicalConstant::CelsiusZeroInKelvin, MaterialPropertyLib::liquid_saturation, OGS_FATAL, MaterialPropertyLib::porosity, MaterialPropertyLib::temperature, and tortuosity_.

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 S_L = std::clamp(
        std::get<double>(
            variable_array[static_cast<int>(Variable::liquid_saturation)]),
        0.0, 1.0);
 
    const double T = std::get<double>(
        variable_array[static_cast<int>(Variable::temperature)]);
    const double phi =
        std::get<double>(variable_array[static_cast<int>(Variable::porosity)]);
 
    const double D_vr = tortuosity_ * phi * (1 - S_L);
 
    return 2.16e-5 *
           std::pow(T / MaterialLib::PhysicalConstant::CelsiusZeroInKelvin,
                    1.8) *
           D_vr;
}

References MaterialLib::PhysicalConstant::CelsiusZeroInKelvin, MaterialPropertyLib::liquid_saturation, MaterialPropertyLib::porosity, MaterialPropertyLib::temperature, and tortuosity_.

Member Data Documentation

tortuosity_

double const MaterialPropertyLib::VapourDiffusionFEBEX::tortuosity_

private

Definition at line 73 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