Class LTPspecies_Arrhenius holds transport parameters for a specific liquid- phase species (LTPspecies) when the transport property is expressed in Arrhenius form. More...
#include <LTPspecies.h>
Public Member Functions | |
| LTPspecies_Arrhenius (const XML_Node &propNode, const std::string name, TransportPropertyType tp_ind, const thermo_t *thermo) | |
| Construct an LTPspecies object for a liquid transport property expressed in extended Arrhenius form. More... | |
| virtual LTPspecies * | duplMyselfAsLTPspecies () const |
| Duplication routine. More... | |
| doublereal | getSpeciesTransProp () |
| Return the standard state species value for this transport property evaluated from the Arrhenius expression. More... | |
 Public Member Functions inherited from LTPspecies | |
| LTPspecies (const XML_Node *const propNode=0, const std::string name="-", TransportPropertyType tp_ind=TP_UNKNOWN, const thermo_t *thermo=0) | |
| Construct an LTPspecies object for a liquid transport property. More... | |
| virtual bool | checkPositive () const |
| Check to see if the property evaluation will be positive. More... | |
| doublereal | getMixWeight () const |
| Return the weight mixture. More... | |
Protected Attributes | |
| doublereal | m_temp |
| temperature from thermo object More... | |
| doublereal | m_logt |
| logarithm of current temperature More... | |
| doublereal | m_prop |
| most recent evaluation of transport property More... | |
| doublereal | m_logProp |
| logarithm of most recent evaluation of transport property More... | |
| Protected Attributes inherited from LTPspecies | |
| std::string | m_speciesName |
| Species Name for the property that is being described. More... | |
| LTPTemperatureDependenceType | m_model |
| Model type for the temperature dependence. More... | |
| TransportPropertyType | m_property |
| enum indicating which property this is (i.e viscosity) More... | |
| vector_fp | m_coeffs |
| Model temperature-dependence ceofficients. More... | |
| const thermo_t * | m_thermo |
| Pointer to a const thermo object to get current temperature. More... | |
| doublereal | m_mixWeight |
| Weighting used for mixing. More... | |
Detailed Description
Class LTPspecies_Arrhenius holds transport parameters for a specific liquid- phase species (LTPspecies) when the transport property is expressed in Arrhenius form.
Used for standard state species properties with equations of the form
\[ x = A T^b \exp( - E / RT ) \]
where A, b, and E are passed in the XML input file.
As an example of the input required for LTPspecies_Arrhenius consider the following XML fragment
* <species> * <!-- thermodynamic properties --> * <transport> * <viscosity model="Arrhenius"> * <!-- Janz, JPCRD, 17, supplement 2, 1988 --> * <A>6.578e-5</A> * <b>0.0</b> * <E units="J/kmol">23788.e3</E> * </viscosity> * <!-- other transport properties --> * </transport> * </species> *
Definition at line 237 of file LTPspecies.h.
Constructor & Destructor Documentation
◆ LTPspecies_Arrhenius()
| LTPspecies_Arrhenius | ( | const XML_Node & | propNode, |
| const std::string | name, | ||
| TransportPropertyType | tp_ind, | ||
| const thermo_t * | thermo | ||
| ) |
Construct an LTPspecies object for a liquid transport property expressed in extended Arrhenius form.
The transport property is constructed from the XML node, <propNode>, that is a child of the <transport> node and specifies a type of transport property (like viscosity)
- Parameters
-
propNode Reference to the XML node that contains the property information.This class is assumed to be parameterized by reading XML_Node information. name String containing the species name tp_ind enum TransportPropertyType containing the property id that this object is creating a parameterization for (e.g., viscosity) thermo const pointer to the ThermoPhase object, which is used to find the temperature.
Definition at line 112 of file LTPspecies.cpp.
References Cantera::getArrhenius(), LTPspecies::m_coeffs, LTPspecies::m_model, LTPspecies_Arrhenius::m_prop, LTPspecies_Arrhenius::m_temp, and XML_Node::name().
Referenced by LTPspecies_Arrhenius::duplMyselfAsLTPspecies().
Member Function Documentation
◆ duplMyselfAsLTPspecies()
|
virtual |
Duplication routine.
(virtual from LTPspecies)
- Returns
- a copy of this routine as a pointer to LTPspecies
Reimplemented from LTPspecies.
Definition at line 131 of file LTPspecies.cpp.
References LTPspecies_Arrhenius::LTPspecies_Arrhenius().
◆ getSpeciesTransProp()
|
virtual |
Return the standard state species value for this transport property evaluated from the Arrhenius expression.
In general the Arrhenius expression is
\[ \mu = A T^n \exp( - E / R T ). \]
Note that for viscosity, the convention is such that a positive activation energy corresponds to the typical case of a positive argument to the exponential so that the Arrhenius expression is
\[ \mu = A T^n \exp( + E / R T ). \]
Any temperature and composition dependence will be adjusted internally according to the information provided.
Reimplemented from LTPspecies.
Definition at line 136 of file LTPspecies.cpp.
References LTPspecies::m_coeffs, LTPspecies_Arrhenius::m_logProp, LTPspecies_Arrhenius::m_logt, LTPspecies_Arrhenius::m_prop, LTPspecies::m_property, LTPspecies_Arrhenius::m_temp, LTPspecies::m_thermo, and Phase::temperature().
Member Data Documentation
◆ m_temp
|
protected |
temperature from thermo object
Definition at line 285 of file LTPspecies.h.
Referenced by LTPspecies_Arrhenius::getSpeciesTransProp(), and LTPspecies_Arrhenius::LTPspecies_Arrhenius().
◆ m_logt
|
protected |
logarithm of current temperature
Definition at line 288 of file LTPspecies.h.
Referenced by LTPspecies_Arrhenius::getSpeciesTransProp().
◆ m_prop
|
protected |
most recent evaluation of transport property
Definition at line 291 of file LTPspecies.h.
Referenced by LTPspecies_Arrhenius::getSpeciesTransProp(), and LTPspecies_Arrhenius::LTPspecies_Arrhenius().
◆ m_logProp
|
protected |
logarithm of most recent evaluation of transport property
Definition at line 294 of file LTPspecies.h.
Referenced by LTPspecies_Arrhenius::getSpeciesTransProp().
The documentation for this class was generated from the following files:
