RelPermVanGenuchten.h

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
#include "BaseLib/ConfigTree-fwd.h"
#include "MaterialLib/MPL/Property.h"
 
namespace MaterialPropertyLib
{
class Medium;
class Phase;
class Component;

class RelPermVanGenuchten final : public Property
{
private:
    double const S_L_res_;
    double const S_L_max_;
    double const k_rel_min_;
    double const m_;
 
public:
    RelPermVanGenuchten(std::string name,
                        double const residual_liquid_saturation,
                        double const residual_gas_saturation,
                        double const min_relative_permeability_liquid,
                        double const exponent);
 
    void checkScale() const override
    {
        if (!std::holds_alternative<Medium*>(scale_))
        {
            OGS_FATAL(
                "The property 'RelativePermeabilityVanGenuchten' is "
                "implemented on the 'media' scale only.");
        }
    }

    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;
};
}  // namespace MaterialPropertyLib