cantera/Cantera/src/SolidCompound.h
2003-07-30 00:27:26 +00:00

189 lines
4.1 KiB
C++

/**
*
* @file SolidPhase.h
*
*/
/* $Author$
* $Date$
* $Revision$
*
* Copyright 2001 California Institute of Technology
*
*/
#ifndef CT_SOLIDPHASE_H
#define CT_SOLIDPHASE_H
//#include "ct_defs.h"
#include "mix_defs.h"
#include "ThermoPhase.h"
#include "SpeciesThermo.h"
namespace Cantera {
/**
* @ingroup thermoprops
*
* Class SolidCompound represents solid compounds.
* It derives from class ThermoPhase,
* and overloads the virtual methods defined there with ones that
* use expressions appropriate for solid compounds
*
*/
class SolidCompound : public ThermoPhase {
public:
SolidCompound():
m_kk(0),
m_tmin(0.0),
m_tmax(0.0),
m_press(OneAtm),
m_p0(OneAtm),
m_tlast(-1.0) {}
virtual ~SolidCompound() {}
/**
* Equation of state flag. Returns the value cSolidCompound, defined
* in mix_defs.h.
*/
virtual int eosType() const { return cSolidCompound; }
/**
* @name Molar Thermodynamic Properties
* @{
*/
/**
* Molar enthalpy. Units: J/kmol.
*/
virtual doublereal enthalpy_mole() const {
double hh = intEnergy_mole() + m_press / molarDensity();
return hh;
}
/**
* Molar internal energy. J/kmol.
*/
virtual doublereal intEnergy_mole() const {
_updateThermo();
return GasConstant * temperature() * m_h0_RT[0]
- m_p0 / molarDensity();
}
/**
* Molar entropy. Units: J/kmol/K.
*/
virtual doublereal entropy_mole() const {
_updateThermo();
return GasConstant * m_s0_R[0];
}
virtual doublereal gibbs_mole() const {
return enthalpy_mole() - temperature() * entropy_mole();
}
/**
* Molar heat capacity at constant pressure. Units: J/kmol/K.
*/
virtual doublereal cp_mole() const {
_updateThermo();
return GasConstant * m_cp0_R[0];
}
/**
* Molar heat capacity at constant volume. Units: J/kmol/K.
*/
virtual doublereal cv_mole() const {
return cp_mole();
}
//@}
/**
* @name Mechanical Equation of State
* @{
*/
/**
* Pressure. Units: Pa.
*/
virtual doublereal pressure() const {
return m_press;
}
/**
* Set the pressure at constant temperature. Units: Pa.
*/
virtual void setPressure(doublereal p) {
m_press = p;
}
//@}
virtual void getChemPotentials(doublereal* mu) const {
mu[0] = gibbs_mole();
}
virtual void getStandardChemPotentials(doublereal* mu0) const {
mu0[0] = gibbs_mole();
//cout << m_h0_RT[0] << " " << m_s0_R[0] << endl;
//cout << "std chem pot = " << mu0[0] << endl;
}
/**
* This method returns the array of generalized
* concentrations. For a solid compound, there is only one
* species, and the generalized concentration is 1.0.
*/
virtual void getActivityConcentrations(doublereal* c) const {
c[0] = 1.0;
}
/**
* The standard concentration. This is defined as the concentration
* by which the generalized concentration is normalized to produce
* the activity.
*/
virtual doublereal standardConcentration(int k=0) const {
return 1.0;
}
virtual doublereal logStandardConc(int k=0) const {
return 0.0;
}
virtual void initThermo();
protected:
int m_kk;
doublereal m_tmin, m_tmax, m_press, m_p0;
mutable doublereal m_tlast;
mutable array_fp m_h0_RT;
mutable array_fp m_cp0_R;
mutable array_fp m_s0_R;
private:
void _updateThermo() const;
};
}
#endif