KozenyCarmanModel.cpp

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#include "KozenyCarmanModel.h"
 
#include <algorithm>
#include <cmath>
 
namespace MaterialPropertyLib
{
PropertyDataType KozenyCarmanModel::value(
    MaterialPropertyLib::VariableArray const& variable_array,
    ParameterLib::SpatialPosition const& pos, double const t,
    double const /*dt*/) const
{
    double const phi = variable_array.porosity;
    auto const& k0 = _k0(t, pos);
 
    std::vector<double> k;
    k.reserve(k0.size());
    std::transform(k0.cbegin(), k0.cend(), std::back_inserter(k),
                   [&](auto const& k_component)
                   {
                       return k_component *
                              std::pow((1 - _phi0(t, pos)[0]) / (1 - phi), 2) *
                              std::pow(phi / _phi0(t, pos)[0], 3);
                   });
 
    return fromVector(k);
}
 
}  // namespace MaterialPropertyLib