TemperatureDependentDiffusion.cpp

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#include "TemperatureDependentDiffusion.h"
 
#include <algorithm>
#include <cmath>
#include <iterator>
 
#include "MaterialLib/PhysicalConstant.h"
 
namespace MaterialPropertyLib
{
void TemperatureDependentDiffusion::checkScale() const
{
    if (!std::holds_alternative<Component*>(scale_))
    {
        OGS_FATAL(
            "The property 'TemperatureDependentDiffusion' is "
            "implemented on the 'component' scale only.");
    }
}
 
PropertyDataType TemperatureDependentDiffusion::value(
    VariableArray const& variable_array,
    ParameterLib::SpatialPosition const& pos, double const t,
    double const /*dt*/) const
{
    auto const T = variable_array.temperature;
    double const gas_constant = MaterialLib::PhysicalConstant::IdealGasConstant;
    double const Arrhenius_exponent =
        std::exp(Ea_ / gas_constant * (1 / T0_ - 1 / T));
 
    auto const D0_data = D0_(t, pos);
    std::vector<double> D;
    std::transform(D0_data.cbegin(), D0_data.cend(), std::back_inserter(D),
                   [&Arrhenius_exponent](double const D0_component)
                   { return D0_component * Arrhenius_exponent; });
 
    return fromVector(D);
}
}  // namespace MaterialPropertyLib