Cantera
2.1.2
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A species thermodynamic property manager for the Shomate polynomial parameterization. More...
#include <ShomateThermo.h>
Public Member Functions | |
ShomateThermo () | |
constructor More... | |
ShomateThermo (const ShomateThermo &right) | |
Copy Constructor. More... | |
ShomateThermo & | operator= (const ShomateThermo &right) |
Assignment Operator. More... | |
virtual SpeciesThermo * | duplMyselfAsSpeciesThermo () const |
Duplication routine for objects derived from SpeciesThermo. More... | |
virtual void | install (const std::string &name, size_t index, int type, const doublereal *c, doublereal minTemp, doublereal maxTemp, doublereal refPressure) |
Install a new species thermodynamic property parameterization for one species using Shomate polynomials. More... | |
virtual void | install_STIT (SpeciesThermoInterpType *stit_ptr) |
Install a new species thermodynamic property parameterization for one species. More... | |
virtual void | update_one (size_t k, doublereal t, doublereal *cp_R, doublereal *h_RT, doublereal *s_R) const |
Like update(), but only updates the single species k. More... | |
virtual void | update (doublereal t, doublereal *cp_R, doublereal *h_RT, doublereal *s_R) const |
Compute the reference-state properties for all species. More... | |
virtual doublereal | minTemp (size_t k=npos) const |
Minimum temperature. More... | |
virtual doublereal | maxTemp (size_t k=npos) const |
Maximum temperature. More... | |
virtual doublereal | refPressure (size_t k=npos) const |
The reference-state pressure for species k. More... | |
virtual int | reportType (size_t index) const |
This utility function reports the type of parameterization used for the species with index number index. More... | |
virtual void | reportParams (size_t index, int &type, doublereal *const c, doublereal &minTemp, doublereal &maxTemp, doublereal &refPressure) const |
Public Member Functions inherited from SpeciesThermo | |
SpeciesThermo () | |
Constructor. More... | |
virtual | ~SpeciesThermo () |
Destructor. More... | |
SpeciesThermo (const SpeciesThermo &right) | |
Copy Constructor for the SpeciesThermo object. More... | |
SpeciesThermo & | operator= (const SpeciesThermo &right) |
Assignment operator for the SpeciesThermo object. More... | |
Public Attributes | |
const int | ID |
Initialized to the type of parameterization. More... | |
Public Attributes inherited from SpeciesThermo | |
bool | m_allow_discontinuities |
Protected Attributes | |
std::vector< std::vector < ShomatePoly > > | m_high |
Vector of vector of NasaPoly1's for the high temp region. More... | |
std::vector< std::vector < ShomatePoly > > | m_low |
Vector of vector of NasaPoly1's for the low temp region. More... | |
std::map< int, int > | m_index |
Map between the midpoint temperature, as an int, to the group number. More... | |
vector_fp | m_tmid |
Vector of log temperature limits. More... | |
doublereal | m_tlow_max |
Maximum value of the low temperature limit. More... | |
doublereal | m_thigh_min |
Minimum value of the high temperature limit. More... | |
vector_fp | m_tlow |
Vector of low temperature limits (species index) More... | |
vector_fp | m_thigh |
Vector of low temperature limits (species index) More... | |
doublereal | m_p0 |
Reference pressure (Pa) More... | |
int | m_ngroups |
number of groups More... | |
vector_fp | m_t |
Vector of temperature polynomials. More... | |
std::map< size_t, size_t > | m_group_map |
std::map< size_t, size_t > | m_posInGroup_map |
A species thermodynamic property manager for the Shomate polynomial parameterization.
This is the parameterization used in the NIST Chemistry WebBook (http://webbook.nist.gov/chemistry) The parameterization assumes there are two temperature regions each with its own Shomate polynomial representation, for each species in the phase.
\[ \tilde{c}_p^0(T) = A + B t + C t^2 + D t^3 + \frac{E}{t^2} \]
\[ \tilde{h}^0(T) = A t + \frac{B t^2}{2} + \frac{C t^3}{3} + \frac{D t^4}{4} - \frac{E}{t} + F. \]
\[ \tilde{s}^0(T) = A\ln t + B t + \frac{C t^2}{2} + \frac{D t^3}{3} - \frac{E}{2t^2} + G. \]
In the above expressions, the thermodynamic polynomials are expressed in dimensional units, but the temperature, \( t \), is divided by 1000. The following dimensions are assumed in the above expressions:
Note, the polynomial data (i.e., A, ... , G) is entered in dimensional form.
This is in contrast to the NASA database polynomials which are entered in nondimensional form (i.e., NASA parameterizes C_p/R, while Shomate parameterizes C_p assuming units of J/gmol*K - and kJ/gmol*K for H). Note, also that the H - H_298.15 equation has units of kJ/gmol, because of the implicit integration of (t = T 1000), which provides a multiplier of 1000 to the Enthalpy equation.
Definition at line 59 of file ShomateThermo.h.
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constructor
Definition at line 69 of file ShomateThermo.h.
References ShomateThermo::m_t.
Referenced by ShomateThermo::duplMyselfAsSpeciesThermo().
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Copy Constructor.
right | Object to be copied |
Definition at line 82 of file ShomateThermo.h.
References ShomateThermo::operator=().
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Assignment Operator.
right | Object to be copied |
Definition at line 95 of file ShomateThermo.h.
References ShomateThermo::m_group_map, ShomateThermo::m_high, ShomateThermo::m_index, ShomateThermo::m_low, ShomateThermo::m_ngroups, ShomateThermo::m_p0, ShomateThermo::m_posInGroup_map, ShomateThermo::m_t, ShomateThermo::m_thigh, ShomateThermo::m_thigh_min, ShomateThermo::m_tlow, ShomateThermo::m_tlow_max, and ShomateThermo::m_tmid.
Referenced by ShomateThermo::ShomateThermo().
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Duplication routine for objects derived from SpeciesThermo.
This function can be used to duplicate objects derived from SpeciesThermo even if the application only has a pointer to SpeciesThermo to work with.
Implements SpeciesThermo.
Definition at line 117 of file ShomateThermo.h.
References ShomateThermo::ShomateThermo().
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Install a new species thermodynamic property parameterization for one species using Shomate polynomials.
Two temperature regions are assumed.
name | Name of the species |
index | Species index |
type | int flag specifying the type of parameterization to be installed. |
c | Vector of coefficients for the parameterization. There are 15 coefficients for the 2-zone Shomate polynomial. The first coefficient is the value of Tmid. The next 7 coefficients are the low temperature range Shomate coefficients. The last 7 are the high temperature range Shomate coefficients. |
minTemp | minimum temperature for which this parameterization is valid. |
maxTemp | maximum temperature for which this parameterization is valid. |
refPressure | standard-state pressure for this parameterization. |
Implements SpeciesThermo.
Definition at line 147 of file ShomateThermo.h.
References Cantera::fp2str(), ShomateThermo::m_group_map, ShomateThermo::m_high, ShomateThermo::m_index, ShomateThermo::m_low, ShomateThermo::m_ngroups, ShomateThermo::m_p0, ShomateThermo::m_posInGroup_map, ShomateThermo::m_thigh, ShomateThermo::m_thigh_min, ShomateThermo::m_tlow, ShomateThermo::m_tlow_max, ShomateThermo::m_tmid, ShomateThermo::maxTemp(), ShomateThermo::minTemp(), ShomateThermo::refPressure(), and Cantera::writelog().
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Install a new species thermodynamic property parameterization for one species.
stit_ptr | Pointer to the SpeciesThermoInterpType object This will set up the thermo for one species |
Implements SpeciesThermo.
Definition at line 202 of file ShomateThermo.h.
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Like update(), but only updates the single species k.
k | species index |
t | Temperature (Kelvin) |
cp_R | Vector of Dimensionless heat capacities. (length m_kk). |
h_RT | Vector of Dimensionless enthalpies. (length m_kk). |
s_R | Vector of Dimensionless entropies. (length m_kk). |
Reimplemented from SpeciesThermo.
Definition at line 214 of file ShomateThermo.h.
References Cantera::GasConstant, ShomateThermo::m_group_map, ShomateThermo::m_high, ShomateThermo::m_low, ShomateThermo::m_posInGroup_map, ShomateThermo::m_t, SpeciesThermoInterpType::maxTemp(), and ShomatePoly::updateProperties().
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Compute the reference-state properties for all species.
Given temperature T in K, this method updates the values of the non- dimensional heat capacity at constant pressure, enthalpy, and entropy, at the reference pressure, Pref of each of the standard states.
T | Temperature (Kelvin) |
cp_R | Vector of Dimensionless heat capacities. (length m_kk). |
h_RT | Vector of Dimensionless enthalpies. (length m_kk). |
s_R | Vector of Dimensionless entropies. (length m_kk). |
Implements SpeciesThermo.
Definition at line 240 of file ShomateThermo.h.
References Cantera::GasConstant, ShomateThermo::m_high, ShomateThermo::m_low, ShomateThermo::m_ngroups, ShomateThermo::m_t, and ShomateThermo::m_tmid.
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Minimum temperature.
If no argument is supplied, this method returns the minimum temperature for which all parameterizations are valid. If an integer index k is supplied, then the value returned is the minimum temperature for species k in the phase.
k | Species index |
Implements SpeciesThermo.
Definition at line 268 of file ShomateThermo.h.
References ShomateThermo::m_tlow, ShomateThermo::m_tlow_max, and Cantera::npos.
Referenced by ShomateThermo::install().
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Maximum temperature.
If no argument is supplied, this method returns the maximum temperature for which all parameterizations are valid. If an integer index k is supplied, then the value returned is the maximum temperature for parameterization k.
k | Species Index |
Implements SpeciesThermo.
Definition at line 276 of file ShomateThermo.h.
References ShomateThermo::m_thigh, ShomateThermo::m_thigh_min, and Cantera::npos.
Referenced by ShomateThermo::install().
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The reference-state pressure for species k.
Returns the reference state pressure in Pascals for species k. If k is left out of the argument list, it returns the reference state pressure for the first species. Note that some SpeciesThermo implementations, such as those for ideal gases, require that all species in the same phase have the same reference state pressures.
k | Species Index |
Implements SpeciesThermo.
Definition at line 284 of file ShomateThermo.h.
References ShomateThermo::m_p0.
Referenced by ShomateThermo::install().
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This utility function reports the type of parameterization used for the species with index number index.
index | Species index |
Implements SpeciesThermo.
Definition at line 288 of file ShomateThermo.h.
References SHOMATE.
Referenced by ShomateThermo::reportParams().
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Implements SpeciesThermo.
Definition at line 293 of file ShomateThermo.h.
References ShomateThermo::m_group_map, ShomateThermo::m_high, ShomateThermo::m_low, ShomateThermo::m_posInGroup_map, SpeciesThermoInterpType::maxTemp(), ShomatePoly::reportParameters(), ShomateThermo::reportType(), SHOMATE, SHOMATE1, and Cantera::warn_deprecated().
const int ID |
Initialized to the type of parameterization.
Note, this value is used in some template functions
Definition at line 66 of file ShomateThermo.h.
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Vector of vector of NasaPoly1's for the high temp region.
This is the high temp region representation. The first Length is equal to the number of groups. The second vector is equal to the number of species in that particular group.
Definition at line 389 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::operator=(), ShomateThermo::reportParams(), ShomateThermo::update(), and ShomateThermo::update_one().
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Vector of vector of NasaPoly1's for the low temp region.
This is the low temp region representation. The first Length is equal to the number of groups. The second vector is equal to the number of species in that particular group.
Definition at line 397 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::operator=(), ShomateThermo::reportParams(), ShomateThermo::update(), and ShomateThermo::update_one().
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Map between the midpoint temperature, as an int, to the group number.
Length is equal to the number of groups. Only used in the setup.
Definition at line 403 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), and ShomateThermo::operator=().
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Vector of log temperature limits.
Length is equal to the number of groups.
Definition at line 409 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::operator=(), and ShomateThermo::update().
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Maximum value of the low temperature limit.
Definition at line 412 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::minTemp(), and ShomateThermo::operator=().
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Minimum value of the high temperature limit.
Definition at line 415 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::maxTemp(), and ShomateThermo::operator=().
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Vector of low temperature limits (species index)
Length is equal to number of species
Definition at line 421 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::minTemp(), and ShomateThermo::operator=().
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Vector of low temperature limits (species index)
Length is equal to number of species
Definition at line 427 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::maxTemp(), and ShomateThermo::operator=().
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Reference pressure (Pa)
all species must have the same reference pressure.
Definition at line 433 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::operator=(), and ShomateThermo::refPressure().
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number of groups
Definition at line 436 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::operator=(), and ShomateThermo::update().
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Vector of temperature polynomials.
Definition at line 439 of file ShomateThermo.h.
Referenced by ShomateThermo::operator=(), ShomateThermo::ShomateThermo(), ShomateThermo::update(), and ShomateThermo::update_one().
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This map takes as its index, the species index in the phase. It returns the group index, where the temperature polynomials for that species are stored. group indices start at 1, so a decrement is always performed to access vectors.
Definition at line 447 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::operator=(), ShomateThermo::reportParams(), and ShomateThermo::update_one().
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This map takes as its index, the species index in the phase. It returns the position index within the group, where the temperature polynomials for that species are stored.
Definition at line 454 of file ShomateThermo.h.
Referenced by ShomateThermo::install(), ShomateThermo::operator=(), ShomateThermo::reportParams(), and ShomateThermo::update_one().