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/* Copyright (c) 2020, Dyssol Development Team. All rights reserved. This file is part of Dyssol. See LICENSE file for license information. */
#include "Correlation.h"
#include "StringFunctions.h"
#include "DyssolStringConstants.h"
#include <sstream>
#include <cmath>
CCorrelation::CCorrelation()
{
Initialize(ECorrelationTypes::LIST_OF_T_VALUES, std::vector<double>(), { MDBDescriptors::TEMP_MIN , MDBDescriptors::TEMP_MAX }, { MDBDescriptors::PRES_MIN , MDBDescriptors::PRES_MAX });
}
CCorrelation::CCorrelation(ECorrelationTypes _nType, const std::vector<double>& _vParams, const SInterval& _TInterval /*= { TEMP_MIN , TEMP_MAX }*/, const SInterval& _PInterval /*= { PRES_MIN , PRES_MAX }*/)
{
Initialize(_nType, _vParams, _TInterval, _PInterval);
}
SInterval CCorrelation::GetTInterval() const
{
return m_TInterval;
}
bool CCorrelation::SetTInterval(const SInterval& _TInterval)
{
if (_TInterval.min < 0 || _TInterval.max < 0) return false;
m_TInterval = _TInterval;
return true;
}
SInterval CCorrelation::GetPInterval() const
{
return m_PInterval;
}
bool CCorrelation::SetPInterval(const SInterval& _PInterval)
{
if (_PInterval.min < 0 || _PInterval.max < 0) return false;
m_PInterval = _PInterval;
return true;
}
ECorrelationTypes CCorrelation::GetType() const
{
return m_nType;
}
void CCorrelation::SetType(ECorrelationTypes _nType)
{
if (_nType == m_nType) return; // the same type
m_nType = _nType;
// invalidate old values
m_vParameters.clear();
m_valuesList.Clear();
// prepare the parameters list
m_vParameters.resize(MDBDescriptors::correlations[m_nType].parametersNumber, 1.0);
}
std::vector<double> CCorrelation::GetParameters() const
{
if (m_nType != ECorrelationTypes::LIST_OF_T_VALUES && m_nType != ECorrelationTypes::LIST_OF_P_VALUES)
return m_vParameters;
else
{
std::vector<double> vRes;
for (size_t i = 0; i < m_valuesList.Size(); ++i)
{
vRes.push_back(m_valuesList.GetParamAt(i));
vRes.push_back(m_valuesList.GetValueAt(i));
}
return vRes;
}
}
bool CCorrelation::SetParameters(const std::vector<double>& _vParams)
{
if (m_nType == ECorrelationTypes::LIST_OF_T_VALUES || m_nType == ECorrelationTypes::LIST_OF_P_VALUES)
{
// check that the length of parameters is an even value, as it must contain pairs [parameter:value]
if (_vParams.size() % 2 != 0) return false;
// remove old data
m_valuesList.Clear();
// set the list of pairs
for (size_t i = 0; i < _vParams.size(); i += 2)
m_valuesList.SetValue(_vParams[i], _vParams[i + 1]);
}
else
{
// check parameters number
if (_vParams.size() != MDBDescriptors::correlations[m_nType].parametersNumber) return false;
// set parameters
m_vParameters = _vParams;
}
return true;
}
double CCorrelation::GetValue(double _dT, double _dP) const
{
if (!IsTInInterval(_dT)) _dT = _dT < m_TInterval.min ? m_TInterval.min : m_TInterval.max;
if (!IsPInInterval(_dP)) _dP = _dP < m_PInterval.min ? m_PInterval.min : m_PInterval.max;
double res = 0.0;
switch (m_nType)
{
case ECorrelationTypes::LIST_OF_T_VALUES:
res = m_valuesList.GetValue(_dT);
break;
case ECorrelationTypes::LIST_OF_P_VALUES:
res = m_valuesList.GetValue(_dP);
break;
case ECorrelationTypes::CONSTANT:
res = m_vParameters[0];
break;
case ECorrelationTypes::LINEAR:
res = _dT*m_vParameters[0] + _dP*m_vParameters[1] + m_vParameters[2];
break;
case ECorrelationTypes::EXPONENT_1:
if (m_vParameters[6] * _dT + m_vParameters[7] != 0)
res = m_vParameters[0] * std::pow(m_vParameters[1], m_vParameters[2] + m_vParameters[3] * _dT + (m_vParameters[4] * _dT + m_vParameters[5]) / (m_vParameters[6] * _dT + m_vParameters[7])) + m_vParameters[8];
break;
case ECorrelationTypes::POW_1:
res = m_vParameters[0] * std::pow(_dT, m_vParameters[1]);
break;
case ECorrelationTypes::POLYNOMIAL_1:
res = m_vParameters[0] + m_vParameters[1] * _dT + m_vParameters[2] * std::pow(_dT, 2) + m_vParameters[3] * std::pow(_dT, 3) + m_vParameters[4] * std::pow(_dT, 4) + m_vParameters[5] * std::pow(_dT, 5) + m_vParameters[6] * std::pow(_dT, 6) + m_vParameters[7] * std::pow(_dT, 7);
break;
case ECorrelationTypes::POLYNOMIAL_CP:
if (_dT != 0)
res = m_vParameters[0] + m_vParameters[1] * _dT + m_vParameters[2] * std::pow(_dT, 2.) + m_vParameters[3] * std::pow(_dT, 3.) + m_vParameters[4] / std::pow(_dT, 2.);
break;
case ECorrelationTypes::POLYNOMIAL_H:
if (_dT != 0)
res = m_vParameters[0] * _dT + m_vParameters[1] * std::pow(_dT, 2.) / 2. + m_vParameters[2] * std::pow(_dT, 3.) / 3. + m_vParameters[3] * std::pow(_dT, 4.) / 4. - m_vParameters[4] / _dT + m_vParameters[5] - m_vParameters[6];
break;
case ECorrelationTypes::POLYNOMIAL_S:
if (_dT != 0)
res = m_vParameters[0] * std::log(_dT) + m_vParameters[1] * _dT + m_vParameters[2] * std::pow(_dT, 2.) / 2. + m_vParameters[3] * std::pow(_dT, 3.) / 3. - m_vParameters[4] / (2 * std::pow(_dT, 2.)) + m_vParameters[5];
break;
case ECorrelationTypes::SUTHERLAND:
res = m_vParameters[0] * (m_vParameters[1] + m_vParameters[2]) / (_dT + m_vParameters[2]) * pow(_dT / m_vParameters[1], 3. / 2.);
break;
case ECorrelationTypes::POW_2:
res = m_vParameters[0] + m_vParameters[1] * pow(_dT, m_vParameters[2]) + m_vParameters[3] * pow((m_vParameters[4] * _dT + m_vParameters[5]) / (m_vParameters[6] * _dT + m_vParameters[7]), m_vParameters[8]);
break;
case ECorrelationTypes::IDEAL_GAS:
res = m_vParameters[0] * _dP / _dT / MOLAR_GAS_CONSTANT;
break;
case ECorrelationTypes::UNDEFINED:
break;
}
if (std::isinf(res) || std::isnan(res))
res = 0.0;
return res;
}
bool CCorrelation::IsTInInterval(double _dT) const
{
return _dT >= m_TInterval.min && _dT <= m_TInterval.max;
}
bool CCorrelation::IsPInInterval(double _dP) const
{
return (_dP >= m_PInterval.min) && (_dP <= m_PInterval.max);
}
bool CCorrelation::IsInInterval(double _dT, double _dP) const
{
return IsTInInterval(_dT) && IsPInInterval(_dP);
}
std::ostream& operator<<(std::ostream& os, const CCorrelation& val)
{
os << static_cast<unsigned>(val.GetType()) << " " << val.GetTInterval() << " " << val.GetPInterval() << " ";
for (auto v : val.GetParameters())
os << v << " ";
return os;
}
std::istream& operator>>(std::istream& is, CCorrelation& val)
{
unsigned type;
SInterval TInterval{ MDBDescriptors::TEMP_MIN , MDBDescriptors::TEMP_MAX };
SInterval PInterval{ MDBDescriptors::PRES_MIN , MDBDescriptors::PRES_MAX };
is >> type >> TInterval >> PInterval;
std::stringstream valuesStream(StringFunctions::TrimFromSymbols(StringFunctions::GetRestOfLine(is), StrConst::COMMENT_SYMBOL));
std::vector<double> params;
while (!valuesStream.eof())
{
double dTemp;
valuesStream >> dTemp;
params.push_back(dTemp);
}
val = CCorrelation{ static_cast<ECorrelationTypes>(type), params, TInterval, PInterval };
return is;
}
bool CCorrelation::operator==(const CCorrelation& _c) const
{
return
m_nType == _c.m_nType &&
m_TInterval == _c.m_TInterval &&
m_PInterval == _c.m_PInterval &&
m_vParameters == _c.m_vParameters &&
m_valuesList == _c.m_valuesList;
}
void CCorrelation::Initialize(ECorrelationTypes _nType, const std::vector<double>& _vParams, const SInterval& _TInterval, const SInterval& _PInterval)
{
if (!TrySetCorrelation(_nType, _vParams, _TInterval, _PInterval)) // try to set all parameters
{
// set default values
m_nType = ECorrelationTypes::LIST_OF_T_VALUES;
m_vParameters.clear();
m_valuesList.Clear();
m_TInterval = { MDBDescriptors::TEMP_MIN , MDBDescriptors::TEMP_MIN };
m_PInterval = { MDBDescriptors::PRES_MIN , MDBDescriptors::PRES_MAX };
}
}
bool CCorrelation::TrySetCorrelation(ECorrelationTypes _nType, const std::vector<double>& _vParams, const SInterval& _TInterval, const SInterval& _PInterval)
{
SetType(_nType); // set type
return SetTInterval(_TInterval) && SetPInterval(_PInterval) && SetParameters(_vParams); // try to set other parameters
}
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