constant.hh

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#ifndef DUMUX_COMPONENTS_CONSTANT_HH
#define DUMUX_COMPONENTS_CONSTANT_HH
 
#include <dune/common/exceptions.hh>
#include <dumux/common/parameters.hh>
 
#include <dumux/material/idealgas.hh>
 
#include <dumux/material/components/base.hh>
#include <dumux/material/components/liquid.hh>
#include <dumux/material/components/gas.hh>
#include <dumux/material/components/solid.hh>
 
namespace Dumux {
namespace Components {

template<int id, class Scalar>
class Constant
: public Components::Base<Scalar, Constant<id, Scalar> >
, public Components::Liquid<Scalar, Constant<id, Scalar> >
, public Components::Gas<Scalar, Constant<id, Scalar> >
, public Components::Solid<Scalar, Constant<id, Scalar> >
{
    using IdealGas = Dumux::IdealGas<Scalar>;
 
public:
    static constexpr bool gasIsCompressible()
    { return false; }

    static constexpr bool gasViscosityIsConstant()
    { return true; }

    static constexpr bool gasIsIdeal()
    { return true; }

    static constexpr bool liquidIsCompressible()
    { return false; }

    static constexpr bool liquidViscosityIsConstant()
    { return true; }

    static const std::string& name()
    {
        static const std::string name = getParamFromGroup<std::string>(std::to_string(id), "Component.Name", "component");
        return name;
    }

    static Scalar molarMass()
    {
        static const Scalar molarMass = getParamFromGroup<Scalar>(std::to_string(id), "Component.MolarMass");
        return molarMass;
    }

    static Scalar tripleTemperature()
    {
        static const Scalar tripleTemperature = getParamFromGroup<Scalar>(std::to_string(id), "Component.TripleTemperature");
        return tripleTemperature;
    }

    static Scalar triplePressure()
    {
        static const Scalar triplePressure = getParamFromGroup<Scalar>(std::to_string(id), "Component.TriplePressure");
        return triplePressure;
    }

    static Scalar vaporizationEnthalpy()
    {
        static const Scalar vaporizationEnthalpy = getParamFromGroup<Scalar>(std::to_string(id), "Component.EnthalpyOfVaporization");
        return vaporizationEnthalpy;
    }
 

    static Scalar liquidDensity(Scalar temperature, Scalar pressure)
    {
        static const Scalar density = getParamFromGroup<Scalar>(std::to_string(id), "Component.LiquidDensity");
        return density;
    }

    static Scalar liquidMolarDensity(Scalar temperature, Scalar pressure)
    { return liquidDensity(temperature, pressure)/molarMass(); }

    static Scalar liquidViscosity(Scalar temperature, Scalar pressure)
    {
        static const Scalar dynamicViscosity = [&]
        {
            if (hasParamInGroup(std::to_string(id), "Component.LiquidKinematicViscosity"))
            {
                if (hasParamInGroup(std::to_string(id), "Component.LiquidDynamicViscosity"))
                    DUNE_THROW(Dune::InvalidStateException, "Found both Component.LiquidKinematicViscosity and Component.LiquidDynamicViscosity."
                        << " Please only specify either the kinematic or the dynamic viscosity for all constant components to avoid ambiguities.");
 
                return getParamFromGroup<Scalar>(std::to_string(id), "Component.LiquidKinematicViscosity") * liquidDensity(temperature, pressure);
            }
            else
                return getParamFromGroup<Scalar>(std::to_string(id), "Component.LiquidDynamicViscosity");
        }();
 
        return dynamicViscosity;
    }

    static Scalar liquidThermalConductivity(Scalar temperature, Scalar pressure)
    {
        static const Scalar thermalConductivity = getParamFromGroup<Scalar>(std::to_string(id), "Component.LiquidThermalConductivity");
        return thermalConductivity;
    }

    static Scalar liquidInternalEnergy(Scalar temperature, Scalar pressure)
    {
        // u = c * dT for incompressible fluids
        const Scalar heatCapacity = liquidHeatCapacity(temperature, pressure);
        static const Scalar tRef = getParamFromGroup<Scalar>(std::to_string(id), "Component.ReferenceTemperature", 293.15);
        return heatCapacity * (temperature - tRef);
    }

    static Scalar liquidEnthalpy(Scalar temperature, Scalar pressure)
    {
        const Scalar u = liquidInternalEnergy(temperature, pressure);
        const Scalar rho = liquidDensity(temperature, pressure);
        return u + pressure / rho;
    }

    static Scalar liquidHeatCapacity(Scalar temperature, Scalar pressure)
    {
        static const Scalar heatCapacity = getParamFromGroup<Scalar>(std::to_string(id), "Component.LiquidHeatCapacity");
        return heatCapacity;
    }

    static Scalar gasDensity(Scalar temperature, Scalar pressure)
    {
        static const Scalar density = getParamFromGroup<Scalar>(std::to_string(id), "Component.GasDensity");
        return density;
    }

    static Scalar gasMolarDensity(Scalar temperature, Scalar pressure)
    { return gasDensity(temperature, pressure)/molarMass(); }
 

    static Scalar gasViscosity(Scalar temperature, Scalar pressure)
    {
        static const Scalar dynamicViscosity = [&]
        {
            if (hasParamInGroup(std::to_string(id), "Component.GasKinematicViscosity"))
            {
                if (hasParamInGroup(std::to_string(id), "Component.GasDynamicViscosity"))
                    DUNE_THROW(Dune::InvalidStateException, "Found both Component.GasKinematicViscosity and Component.GasDynamicViscosity."
                        << " Please only specify either the kinematic or the dynamic viscosity for all constant components to avoid ambiguities.");
 
                return getParamFromGroup<Scalar>(std::to_string(id), "Component.GasKinematicViscosity") * gasDensity(temperature, pressure);
            }
            else
                return getParamFromGroup<Scalar>(std::to_string(id), "Component.GasDynamicViscosity");
        }();
 
        return dynamicViscosity;
    }

    static Scalar gasThermalConductivity(Scalar temperature, Scalar pressure)
    {
        static const Scalar thermalConductivity = getParamFromGroup<Scalar>(std::to_string(id), "Component.GasThermalConductivity");
        return thermalConductivity;
    }

    static Scalar gasInternalEnergy(Scalar temperature, Scalar pressure)
    {
        // 1/molarMass: conversion from [J/(mol K)] to [J/(kg K)]
        // R*T/molarMass: pressure *spec. volume for an ideal gas
        return gasEnthalpy(temperature, pressure) - 1/molarMass()* IdealGas::R*temperature;
 
    }

    static Scalar gasEnthalpy(Scalar temperature, Scalar pressure)
    {
        static const Scalar tRef = getParamFromGroup<Scalar>(std::to_string(id), "Component.ReferenceTemperature", 293.15);
        return gasHeatCapacity(temperature, pressure)*(temperature - tRef) + vaporizationEnthalpy();
    }

    static Scalar gasHeatCapacity(Scalar temperature, Scalar pressure)
    {
        static const Scalar heatCapacity = getParamFromGroup<Scalar>(std::to_string(id), "Component.GasHeatCapacity");
        return heatCapacity;
    }

    static Scalar vaporPressure(Scalar T)
    {
        const Scalar p2 = triplePressure();
        const Scalar T2 = tripleTemperature();
        const Scalar exponent = -(vaporizationEnthalpy()*molarMass())/IdealGas::R*(1/T - 1/T2);
 
        using std::exp;
        const Scalar vaporPressure = p2*exp(exponent);
        return vaporPressure;
    }

    static Scalar solidDensity(Scalar temperature)
    {
        static const Scalar density = getParamFromGroup<Scalar>(std::to_string(id), "Component.SolidDensity");
        return density;
    }

    static Scalar solidThermalConductivity(Scalar temperature)
    {
        static const Scalar solidThermalConductivity = getParamFromGroup<Scalar>(std::to_string(id), "Component.SolidThermalConductivity");
        return solidThermalConductivity;
    }

    static Scalar solidHeatCapacity(Scalar temperature)
    {
        static const Scalar solidHeatCapacity = getParamFromGroup<Scalar>(std::to_string(id), "Component.SolidHeatCapacity");
        return solidHeatCapacity;
    }
};
 
} // end namespace Components
 
} // end namespace Dumux
 
#endif