158 lines
3.4 KiB
C++
158 lines
3.4 KiB
C++
/**
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* @file ConstDensityThermo.cpp
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* Declarations for a Thermo manager for incompressible ThermoPhases
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* (see \ref thermoprops and \link Cantera::ConstDensityThermo ConstDensityThermo
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\endlink).
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*/
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// Copyright 2002 California Institute of Technology
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#include "cantera/thermo/mix_defs.h"
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#include "cantera/thermo/ConstDensityThermo.h"
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#include "cantera/base/ctml.h"
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using namespace ctml;
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namespace Cantera
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{
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ConstDensityThermo::ConstDensityThermo()
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{
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}
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ConstDensityThermo::ConstDensityThermo(const ConstDensityThermo& right)
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{
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*this = right;
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}
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ConstDensityThermo& ConstDensityThermo::operator=(const ConstDensityThermo& right)
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{
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if (&right == this) {
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return *this;
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}
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m_h0_RT = right.m_h0_RT;
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m_cp0_R = right.m_cp0_R;
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m_g0_RT = right.m_g0_RT;
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m_s0_R = right.m_s0_R;
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m_pp = right.m_pp;
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return *this;
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}
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ThermoPhase* ConstDensityThermo::duplMyselfAsThermoPhase() const
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{
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return new ConstDensityThermo(*this);
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}
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int ConstDensityThermo::eosType() const
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{
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return cIncompressible;
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}
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doublereal ConstDensityThermo::enthalpy_mole() const
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{
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doublereal p0 = m_spthermo->refPressure();
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return GasConstant * temperature() *
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mean_X(enthalpy_RT()) + (pressure() - p0)/molarDensity();
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}
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doublereal ConstDensityThermo::entropy_mole() const
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{
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return GasConstant * (mean_X(entropy_R()) - sum_xlogx());
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}
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doublereal ConstDensityThermo::cp_mole() const
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{
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return GasConstant * mean_X(cp_R());
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}
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doublereal ConstDensityThermo::cv_mole() const
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{
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return cp_mole();
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}
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doublereal ConstDensityThermo::pressure() const
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{
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return m_press;
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}
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void ConstDensityThermo::setPressure(doublereal p)
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{
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m_press = p;
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}
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void ConstDensityThermo::getActivityConcentrations(doublereal* c) const
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{
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getConcentrations(c);
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}
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void ConstDensityThermo::getActivityCoefficients(doublereal* ac) const
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{
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for (size_t k = 0; k < m_kk; k++) {
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ac[k] = 1.0;
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}
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}
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doublereal ConstDensityThermo::standardConcentration(size_t k) const
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{
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return molarDensity();
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}
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void ConstDensityThermo::getChemPotentials(doublereal* mu) const
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{
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doublereal vdp = (pressure() - m_spthermo->refPressure())/
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molarDensity();
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doublereal rt = temperature() * GasConstant;
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const vector_fp& g_RT = gibbs_RT();
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for (size_t k = 0; k < m_kk; k++) {
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double xx = std::max(SmallNumber, moleFraction(k));
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mu[k] = rt*(g_RT[k] + log(xx)) + vdp;
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}
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}
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void ConstDensityThermo::getStandardChemPotentials(doublereal* mu0) const
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{
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getPureGibbs(mu0);
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}
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void ConstDensityThermo::initThermo()
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{
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ThermoPhase::initThermo();
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m_h0_RT.resize(m_kk);
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m_g0_RT.resize(m_kk);
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m_cp0_R.resize(m_kk);
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m_s0_R.resize(m_kk);
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m_pp.resize(m_kk);
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}
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void ConstDensityThermo::setToEquilState(const doublereal* lambda_RT)
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{
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throw CanteraError("setToEquilState","not yet impl.");
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}
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void ConstDensityThermo::_updateThermo() const
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{
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doublereal tnow = temperature();
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if (m_tlast != tnow) {
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m_spthermo->update(tnow, &m_cp0_R[0], &m_h0_RT[0],
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&m_s0_R[0]);
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m_tlast = tnow;
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for (size_t k = 0; k < m_kk; k++) {
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m_g0_RT[k] = m_h0_RT[k] - m_s0_R[k];
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}
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m_tlast = tnow;
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}
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}
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void ConstDensityThermo::setParametersFromXML(const XML_Node& eosdata)
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{
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eosdata._require("model","Incompressible");
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doublereal rho = getFloat(eosdata, "density", "toSI");
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setDensity(rho);
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}
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}
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