MaterialPropertyLib::LinearWaterVapourLatentHeat Class Reference

Detailed Description

An empirical function for the latent heat of vaporization of liquid water, which is given by [35] p.786f.

\[ L_w(T)=2.501 \cdot 10^6 - 2369.2 (T - 273.15),\,\text{[J/kg]}. \]

A quite simular formula is present on page 81 of [4].

The linear expressions of the latent heat of vaporization of liquid water can be found in some very early references, which are mentioned in [16] (page 79).

The function is used in the energy balance equation for partially saturated zone in porous media [11].

Definition at line 36 of file LinearWaterVapourLatentHeat.h.

#include <LinearWaterVapourLatentHeat.h>

Inheritance diagram for MaterialPropertyLib::LinearWaterVapourLatentHeat:

Collaboration diagram for MaterialPropertyLib::LinearWaterVapourLatentHeat:

Public Member Functions
	LinearWaterVapourLatentHeat (std::string name)
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

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

LinearWaterVapourLatentHeat()

MaterialPropertyLib::LinearWaterVapourLatentHeat::LinearWaterVapourLatentHeat ( std::string name )

inlineexplicit

Definition at line 39 of file LinearWaterVapourLatentHeat.h.

    {
        name_ = std::move(name);
    }

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

Member Function Documentation

checkScale()

void MaterialPropertyLib::LinearWaterVapourLatentHeat::checkScale ( ) const

inlineoverridevirtual

Reimplemented from MaterialPropertyLib::Property.

Definition at line 44 of file LinearWaterVapourLatentHeat.h.

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

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

dValue()

PropertyDataType MaterialPropertyLib::LinearWaterVapourLatentHeat::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 33 of file LinearWaterVapourLatentHeat.cpp.

{
    if (variable == Variable::temperature)
    {
        return -2369.2;
    }
 
    OGS_FATAL(
        "LinearWaterVapourLatentHeat::dValue is implemented for the derivative "
        "with respect to temperature only.");
}

References OGS_FATAL, and MaterialPropertyLib::temperature.

value()

PropertyDataType MaterialPropertyLib::LinearWaterVapourLatentHeat::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 22 of file LinearWaterVapourLatentHeat.cpp.

{
    const double T = variable_array.temperature;
 
    return 2.501e+6 -
           2369.2 * (T - MaterialLib::PhysicalConstant::CelsiusZeroInKelvin);
}

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

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

• MaterialLib/MPL/Properties/Enthalpy/LinearWaterVapourLatentHeat.h
• MaterialLib/MPL/Properties/Enthalpy/LinearWaterVapourLatentHeat.cpp