DimensionLessGibbsFreeEnergyRegion1.h

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
namespace MaterialLib
{
namespace Fluid
{
struct DimensionLessGibbsFreeEnergyRegion1
{
    static double get_gamma(const double tau, const double pi);

    static double get_dgamma_dtau(const double tau, const double pi);

    static double get_dgamma_dtau_dtau(const double tau, const double pi);

    static double get_dgamma_dpi(const double tau, const double pi);

    static double get_dgamma_dpi_dpi(const double tau, const double pi);

    static double get_dgamma_dtau_dpi(const double tau, const double pi);
};
 
}  // namespace Fluid
}  // namespace MaterialLib