Reaction mechanism stoichiometry manager. More...

#include <ReactionStoichMgr.h>

Public Member Functions
	ReactionStoichMgr ()
	Constructor. More...

virtual	~ReactionStoichMgr ()
	Destructor. More...

	ReactionStoichMgr (const ReactionStoichMgr &right)

ReactionStoichMgr &	operator= (const ReactionStoichMgr &right)

virtual void	add (size_t rxn, const std::vector< size_t > &reactants, const std::vector< size_t > &products, bool reversible)
	Add a reaction with mass-action kinetics. More...

virtual void	add (size_t rxn, const ReactionData &r)
	Add a reaction with specified, possibly non-integral, reaction orders. More...

virtual void	getCreationRates (size_t nSpecies, const doublereal fwdRatesOfProgress, const doublereal revRatesOfProgress, doublereal *creationRates)
	Species creation rates. More...

virtual void	getDestructionRates (size_t nSpecies, const doublereal fwdRatesOfProgress, const doublereal revRatesOfProgress, doublereal *destructionRates)
	Species destruction rates. More...

virtual void	getNetProductionRates (size_t nsp, const doublereal ropnet, doublereal w)
	Species net production rates. More...

virtual void	getReactionDelta (size_t nReactions, const doublereal g, doublereal dg)
	Calculates the change of a molar species property in a reaction. More...

virtual void	getRevReactionDelta (size_t nr, const doublereal g, doublereal dg)
	Given an array of species properties 'g', return in array 'dg' the change in this quantity in the reversible reactions. More...

virtual void	multiplyReactants (const doublereal C, doublereal R)
	Given an array of concentrations C, multiply the entries in array R by the concentration products for the reactants. More...

virtual void	multiplyRevProducts (const doublereal c, doublereal r)
	Given an array of concentrations C, multiply the entries in array R by the concentration products for the products. More...

virtual void	write (const std::string &filename)

Protected Member Functions
void	writeCreationRates (std::ostream &f)

void	writeDestructionRates (std::ostream &f)

void	writeNetProductionRates (std::ostream &f)

void	writeMultiplyReactants (std::ostream &f)

void	writeMultiplyRevProducts (std::ostream &f)

Protected Attributes
StoichManagerN	m_reactants

StoichManagerN	m_revproducts

StoichManagerN	m_irrevproducts

vector_fp	m_dummy

Detailed Description

Reaction mechanism stoichiometry manager.

This is an internal class used by kinetics manager classes, and is not meant for direct use in user programs.

Class ReactionStoichMgr handles the calculation of quantities involving the stoichiometry of a set of reactions. The reactions may have integer or non-integer stoichiometric coefficients. Specifically, its methods compute

species creation rates
species destruction rates
species net production rates
the change in molar species properties in the reactions
concentration products

To use this class, method add() is first used to add each reaction. Once all reactions have been added, the methods that compute various quantities may be called.

The nomenclature used below to document the methods is as follows.

\( N_r \) Integer reactant stoichiometric coefficient matrix. The (k,i) element of this matrix is the stoichiometric coefficient of species k as a reactant in reaction i.
\( N_p \) Integer product stoichiometric coefficient matrix. The (k,i) element of this matrix is the stoichiometric coefficient of species k as a product in reaction i.
\( Q_{\rm fwd} \) Vector of length I of forward rates of progress.
\( Q_{\rm rev} \) Vector of length I of reverse rates of progress.
\( C \) Vector of K species creation rates.
\( D \) Vector of K species destruction rates.
\( W = C - D \) Vector of K species net production rates.
Deprecated:
Unused; Functionality merged into class Kinetics. To be removed after Cantera 2.2.

Definition at line 58 of file ReactionStoichMgr.h.

Constructor & Destructor Documentation

ReactionStoichMgr ( )

Constructor.

Definition at line 20 of file ReactionStoichMgr.cpp.

References Cantera::warn_deprecated().

virtual ~ReactionStoichMgr ( )

inlinevirtual

Destructor.

Definition at line 65 of file ReactionStoichMgr.h.

Member Function Documentation

void add	(	size_t	rxn,
		const std::vector< size_t > &	reactants,
		const std::vector< size_t > &	products,
		bool	reversible
	)

virtual

Add a reaction with mass-action kinetics.

Vectors 'reactants' and 'products' contain the integer species indices of the reactants and products, respectively. Note that if more than one molecule of a given species is involved in the reaction, then its index is repeated.

For example, suppose a reaction mechanism involves the species N2, O2, O, N, NO. N2 is assigned index number 0, O2 number 1, and so on through NO with number 4. Then the representation of the following reactions is as shown here.

N + O = NO
- reactants: (3, 2)
- products: (4)
O + O = O2
- reactants: (2, 2) [ note repeated index ]
- products: (1)

Parameters

rxn	Reaction number. This number will be used as the index into the rate of progress vector in the methods below.
reactants	Vector of integer reactant indices
products	Vector of integer product indices
reversible	True if the reaction is reversible, false otherwise

Definition at line 47 of file ReactionStoichMgr.cpp.

void add	(	size_t	rxn,
		const ReactionData &	r
	)

virtual

Add a reaction with specified, possibly non-integral, reaction orders.

Parameters

rxn	Reaction number
r	Data structure containing reactant and product vectors, etc.

Definition at line 62 of file ReactionStoichMgr.cpp.

References ReactionData::forwardFullOrder_, ReactionData::global, ReactionData::isReversibleWithFrac, ReactionData::porder, ReactionData::products, ReactionData::pstoich, ReactionData::reactants, ReactionData::reversible, ReactionData::rorder, and ReactionData::rstoich.

void getCreationRates	(	size_t	nSpecies,
		const doublereal *	fwdRatesOfProgress,
		const doublereal *	revRatesOfProgress,
		doublereal *	creationRates
	)

virtual

Species creation rates.

Given the arrays of the forward and reverse rates of progress for all reactions, compute the species creation rates, given by

\[ C = N_p Q_f + N_r Q_r. \]

Definition at line 183 of file ReactionStoichMgr.cpp.

void getDestructionRates	(	size_t	nSpecies,
		const doublereal *	fwdRatesOfProgress,
		const doublereal *	revRatesOfProgress,
		doublereal *	destructionRates
	)

virtual

Species destruction rates.

Given the arrays of the forward and reverse rates of progress for all reactions, compute the species destruction rates, given by

\[ D = N_r Q_f + N_p Q_r, \]

Note that the stoichiometric coefficient matrices are very sparse, integer matrices.

Definition at line 197 of file ReactionStoichMgr.cpp.

void getNetProductionRates	(	size_t	nsp,
		const doublereal *	ropnet,
		doublereal *	w
	)

virtual

Species net production rates.

Given the array of the net rates of progress for all reactions, compute the species net production rates, given by

\[ W = (N_r - N_p) Q_{\rm net}, \]

Definition at line 208 of file ReactionStoichMgr.cpp.

void getReactionDelta	(	size_t	nReactions,
		const doublereal *	g,
		doublereal *	dg
	)

virtual

Calculates the change of a molar species property in a reaction.

Given an array of species properties 'g', return in array 'dg' the change in this quantity in the reactions. Array 'g' must have a length at least as great as the number of species, and array 'dg' must have a length as great as the total number of reactions.

\[ \delta g_i = \sum_k{\nu_{i,k} g_k } \]

Parameters

nReactions	Number of reactions
g	Molar property of the species. An example would be the partial molar enthalpy Length is equal to number of kinetic species
dg	Calculated property change of the reaction. An example would be the delta change in enthalpy, i.e., the enthalpy of reaction.

Definition at line 220 of file ReactionStoichMgr.cpp.

void getRevReactionDelta	(	size_t	nr,
		const doublereal *	g,
		doublereal *	dg
	)

virtual

Given an array of species properties 'g', return in array 'dg' the change in this quantity in the reversible reactions.

Array 'g' must have a length at least as great as the number of species, and array 'dg' must have a length as great as the total number of reactions. This method only computes 'dg' for the reversible reactions, and the entries of 'dg' for the irreversible reactions are unaltered. This is primarily designed for use in calculating reverse rate coefficients from thermochemistry for reversible reactions.

Definition at line 231 of file ReactionStoichMgr.cpp.