#include <streams.h>

Public Member Functions
void	getProdOfCompleteComb (const double mixf, vector< double > &ypcc, double &hpcc, double &Tpcc)

void	getMixingState (const double mixf, vector< double > &ymix, double &hmix, double &Tmix)

double	getMixtureFraction (const double *y, const bool doBeta01=false)

	streams ()

void	init (domain *p_domn, const vector< double > &gammas)

	~streams ()

Public Attributes
domain *	domn
	pointer to domain object

double	T0
	stream mixf=0 temperature

double	T1
	stream mixf=1 temperature

double	h0
	stream mixf=0 enthalpy

double	h1
	stream mixf=1 enthalpy

vector< double >	y0
	stream mixf=0 composition vector

vector< double >	y1
	stream mixf=1 composition vector

double	M0
	stream mixf=0 mean molecular weight

double	M1
	stream mixf=1 mean molecular weight

double	rho0
	stream mixf=0 density

double	rho1
	stream mixf=1 density

vector< double >	D0
	stream mixf=0 diffusivities

vector< double >	D1
	stream mixf=1 diffusivities

vector< double >	hsp0
	stream mixf=0 species enthalpies

vector< double >	hsp1
	stream mixf=1 species enthalpies

double	mixfStoic
	stoichiometric mixture fraction

int	nspc
	number of species in gas mechanism

double	beta0
	$\text{mixf} = \frac{\beta-\beta_0}{\beta_1-\beta_0}$

double	beta1
	mixf = (beta-beta0) / (beta1-beta0)

vector< double >	gCHON
	gammas, as in beta = sum_i (y_i*gamma_i)

int	comp2
	for premixed combustion to distinguish between different input possibilities for the mixture

Private Member Functions
void	setStoicMixf ()

vector< double >	setElementMassFracs (const double *y)

vector< double >	setElementMoleFracs (const double *y)

vector< double >	getElementMoles (const double *x, double &nOnotFromO2, double &nHnotFromH2O, double &nCnotFromCO2)

Detailed Description

Class implementing streams for use in mixing and or reaction problems. This is writting in terms of mixture fraction with streams defined in an input file. The class can implement products of complete combustion, or equilibrium (through the Cantera IdealGasMix object, if desired). This class holds a pointer to a Cantera IdealGasMix object (defined up front in main) that computes thermodynamic, kinetic, and transport data.

Author: David O. Lignell

Definition at line 26 of file streams.h.

Constructor & Destructor Documentation

◆ streams()

streams::streams ( )

inline

Definition at line 91 of file streams.h.

◆ ~streams()

streams::~streams ( )

inline

Definition at line 94 of file streams.h.

Member Function Documentation

◆ getElementMoles()

vector< double > streams::getElementMoles	(	const double *	x,
		double &	nOnotFromO2,
		double &	nHnotFromH2O,
		double &	nCnotFromCO2 )

private

Get amount of moles for each element.

Parameters

x	input: pointer to vector of species mole fractions.
nOnotFromO2	input: number of moles of oxygen not from O2 (oxygen in the base fuel).
nHnotFromH2O	input: number of moles of hydrogen not from H2O.
nCnotFromCO2	input: number of moles of carbon not from CO2.

Returns: vector of element moles.

Definition at line 326 of file streams.cc.

◆ getMixingState()

void streams::getMixingState	(	const double	mixf,
		vector< double > &	ymix,
		double &	hmix,
		double &	Tmix )

Computes the temperature, enthalpy, and composition of mixing among streams.

Parameters

mixf	input: mixture fraction, defines elemental composition.
ymix	output: mass fractions of products of complete combustion.
hmix	output: enthalpy of products of complete combustion.
Tmix	output: temperature of products of complete combustion.

Definition at line 106 of file streams.cc.

◆ getMixtureFraction()

double streams::getMixtureFraction	(	const double *	y,
		const bool	doBeta01 = false )

Compute the mixture fraction from the mass fractions using Bilger's mixf. Set doBeta01=true on first call to initialize members beta0, beta1. Later calls of this function only use the first parameter.

Parameters

y	input: vector of species mass fractions.
doBeta01	input: flag=true on first call to set members beta0, beta1.

Returns: mixture fraction

Definition at line 363 of file streams.cc.

◆ getProdOfCompleteComb()

void streams::getProdOfCompleteComb	(	const double	mixf,
		vector< double > &	ypcc,
		double &	hpcc,
		double &	Tpcc )

Computes the temperature, enthalpy, and composition of complete combustion at the given mixf. For nonpremixed flames (don't do anything funny, like have oxygen in the fuel stream)

Parameters

mixf	input: mixture fraction, defines elemental composition.
ypcc	output: mass fractions of products of complete combustion.
hpcc	output: enthalpy of products of complete combustion.
Tpcc	output: temperature of products of complete combustion.

Definition at line 128 of file streams.cc.

◆ init()

void streams::init	(	domain *	p_domn,
		const vector< double > &	gammas )

Initialize

Parameters

p_domn input: pointer to domain object.

Definition at line 18 of file streams.cc.

◆ setElementMassFracs()

vector< double > streams::setElementMassFracs ( const double * y )

private

Sets the elements to have the correct Mass Fractions based on the specified array.

Parameters

y	input: mass fraction array to use to get corresponding element fractions.

Returns: vector of element mass fractions.

Definition at line 264 of file streams.cc.

◆ setElementMoleFracs()

vector< double > streams::setElementMoleFracs ( const double * y )

private

Sets the elements to have the correct Mole Fractions based on the specified array.

Parameters

y	input: mass fraction array to use to get corresponding element fractions.

Returns: vector of element mole fractions.

Definition at line 293 of file streams.cc.

◆ setStoicMixf()

void streams::setStoicMixf ( )

private

Set the stoichiometric mixture fraction using Bilger's definition

Definition at line 229 of file streams.cc.

Member Data Documentation

◆ beta0

double streams::beta0

$\text{mixf} = \frac{\beta-\beta_0}{\beta_1-\beta_0}$

mixf = (beta-beta0) / (beta1-beta0) $\text{mixf} = \frac{\beta-\beta_0}{\beta_1-\beta_0}$

Definition at line 54 of file streams.h.

◆ beta1

double streams::beta1

mixf = (beta-beta0) / (beta1-beta0)

Definition at line 56 of file streams.h.

◆ comp2

int streams::comp2

for premixed combustion to distinguish between different input possibilities for the mixture

Definition at line 60 of file streams.h.

◆ D0

vector<double> streams::D0

stream mixf=0 diffusivities

Definition at line 44 of file streams.h.

◆ D1

vector<double> streams::D1

stream mixf=1 diffusivities

Definition at line 45 of file streams.h.

◆ domn

domain* streams::domn

pointer to domain object

Definition at line 32 of file streams.h.

◆ gCHON

vector<double> streams::gCHON

gammas, as in beta = sum_i (y_i*gamma_i)

Definition at line 58 of file streams.h.

◆ h0

double streams::h0

stream mixf=0 enthalpy

Definition at line 36 of file streams.h.

◆ h1

double streams::h1

stream mixf=1 enthalpy

Definition at line 37 of file streams.h.

◆ hsp0

vector<double> streams::hsp0

stream mixf=0 species enthalpies

Definition at line 46 of file streams.h.

◆ hsp1

vector<double> streams::hsp1

stream mixf=1 species enthalpies

Definition at line 47 of file streams.h.

◆ M0

double streams::M0

stream mixf=0 mean molecular weight

Definition at line 40 of file streams.h.

◆ M1

double streams::M1

stream mixf=1 mean molecular weight

Definition at line 41 of file streams.h.

◆ mixfStoic

double streams::mixfStoic

stoichiometric mixture fraction

Definition at line 49 of file streams.h.

◆ nspc

int streams::nspc

number of species in gas mechanism

Definition at line 51 of file streams.h.

◆ rho0

double streams::rho0

stream mixf=0 density

Definition at line 42 of file streams.h.

◆ rho1

double streams::rho1

stream mixf=1 density

Definition at line 43 of file streams.h.

◆ T0

double streams::T0

stream mixf=0 temperature

Definition at line 34 of file streams.h.

◆ T1

double streams::T1

stream mixf=1 temperature

Definition at line 35 of file streams.h.

◆ y0

vector<double> streams::y0

stream mixf=0 composition vector

Definition at line 38 of file streams.h.

◆ y1

vector<double> streams::y1

stream mixf=1 composition vector

Definition at line 39 of file streams.h.

The documentation for this class was generated from the following files:

Public Member Functions

Public Attributes

Private Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ streams()

◆ ~streams()

Member Function Documentation

◆ getElementMoles()

◆ getMixingState()

◆ getMixtureFraction()

◆ getProdOfCompleteComb()

◆ init()

◆ setElementMassFracs()

◆ setElementMoleFracs()

◆ setStoicMixf()

Member Data Documentation

◆ beta0

◆ beta1

◆ comp2

◆ D0

◆ D1

◆ domn

◆ gCHON

◆ h0

◆ h1

◆ hsp0

◆ hsp1

◆ M0

◆ M1

◆ mixfStoic

◆ nspc

◆ rho0

◆ rho1

◆ T0

◆ T1

◆ y0

◆ y1