/**
 * \file
 * \copyright
 * Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
 *            Distributed under a Modified BSD License.
 *              See accompanying file LICENSE.txt or
 *              http://www.opengeosys.org/project/license
 */

#include "Density100MPa.h"

namespace
{

// NaX_HighP_polyfrac_CC.pickle
// date extracted 2015-06-23 15:38:35 file mtime 2015-06-23 15:19:57
const double Density100MPa_c[] = {
    0.3490302932983226,        /* a0 */
    -0.0014061345691831226,    /* a1 */
    -0.0007399303393402753,    /* a2 */
    5.129318840267485e-09,    /* a3 */
    5.243619689772646e-07,    /* a4 */
    6.347011955956523e-10,    /* a5 */
    -9.919599580166727e-11    /* a6 */
};

}  // namespace

namespace Adsorption
{

double Density100MPa::getAdsorbateDensity(const double T_Ads) const
{
    return -0.0013*T_Ads*T_Ads + 0.3529*T_Ads + 1049.2;
}

// Thermal expansivity model for water found in the works of Hauer
double Density100MPa::getAlphaT(const double T_Ads) const
{
    const double rho    = -0.0013*T_Ads*T_Ads+0.3529*T_Ads+1049.2;
    const double drhodT = -0.0026*T_Ads + 0.3529;

    return - drhodT / rho;
}

// Characteristic curve. Return W (A)
double Density100MPa::characteristicCurve(const double A) const
{
    double W = curvePolyfrac(Density100MPa_c, A); // cm^3/g

    if (W < 0.0) {
        W = 0.0; // TODO [CL] debug output
    }

    return W/1.e3; // m^3/kg
}

double Density100MPa::dCharacteristicCurve(const double A) const
{
    return dCurvePolyfrac(Density100MPa_c, A);
}

}  // namespace Adsorption