A class for flow controllers where the flow rate is equal to the flow rate of a primary mass flow controller plus a correction proportional to the pressure difference between the inlet and outlet. More...

#include <flowControllers.h>

Inheritance diagram for PressureController:

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Detailed Description

A class for flow controllers where the flow rate is equal to the flow rate of a primary mass flow controller plus a correction proportional to the pressure difference between the inlet and outlet.

Definition at line 65 of file flowControllers.h.

Public Member Functions
string	type () const override
	String indicating the flow device implemented.

bool	ready () override

void	setPrimary (FlowDevice *primary)
	Set the primary mass flow controller.

void	setTimeFunction (Func1 *g) override
	Set a function of time that is used in determining the mass flow rate through the device.

void	setPressureCoeff (double c)
	Set the proportionality constant between pressure drop and mass flow rate.

double	getPressureCoeff ()
	Get the pressure coefficient.

void	updateMassFlowRate (double time) override
	Update the mass flow rate at time 'time'.

Public Member Functions inherited from FlowDevice
	FlowDevice (const FlowDevice &)=delete

FlowDevice &	operator= (const FlowDevice &)=delete

virtual string	type () const
	String indicating the flow device implemented.

double	massFlowRate ()
	Mass flow rate (kg/s).

virtual void	updateMassFlowRate (double time)
	Update the mass flow rate at time 'time'.

double	outletSpeciesMassFlowRate (size_t k)
	Mass flow rate (kg/s) of outlet species k.

double	enthalpy_mass ()
	specific enthalpy

bool	install (ReactorBase &in, ReactorBase &out)
	Install a flow device between two reactors.

virtual bool	ready ()

ReactorBase &	in () const
	Return a reference to the upstream reactor.

const ReactorBase &	out () const
	Return a const reference to the downstream reactor.

double	evalPressureFunction ()
	Return current value of the pressure function.

virtual void	setPressureFunction (Func1 *f)
	Set a function of pressure that is used in determining the mass flow rate through the device.

double	evalTimeFunction ()
	Return current value of the time function.

virtual void	setTimeFunction (Func1 *g)
	Set a function of time that is used in determining the mass flow rate through the device.

void	setSimTime (double time)
	Set current reactor network time.

Protected Attributes
FlowDevice *	m_primary = nullptr

Protected Attributes inherited from FlowDevice
double	m_mdot = Undef

Func1 *	m_pfunc = nullptr
	Function set by setPressureFunction; used by updateMassFlowRate.

Func1 *	m_tfunc = nullptr
	Function set by setTimeFunction; used by updateMassFlowRate.

double	m_coeff = 1.0
	Coefficient set by derived classes; used by updateMassFlowRate.

double	m_time = 0.
	Current reactor network time.

Member Function Documentation

◆ type()

string type ( ) const

inlineoverridevirtual

String indicating the flow device implemented.

Usually corresponds to the name of the derived class.

Reimplemented from FlowDevice.

Definition at line 70 of file flowControllers.h.

◆ ready()

bool ready ( )

inlineoverridevirtual

Reimplemented from FlowDevice.

Definition at line 74 of file flowControllers.h.

◆ setPrimary()

void setPrimary ( FlowDevice * primary )

inline

Set the primary mass flow controller.

Since: New in Cantera 3.0.

Definition at line 82 of file flowControllers.h.

◆ setTimeFunction()

void setTimeFunction ( Func1 * g )

inlineoverridevirtual

Set a function of time that is used in determining the mass flow rate through the device.

The evaluation of mass flow depends on the derived flow device class.

Reimplemented from FlowDevice.

Definition at line 86 of file flowControllers.h.

◆ setPressureCoeff()

void setPressureCoeff ( double c )

inline

Set the proportionality constant between pressure drop and mass flow rate.

c has units of kg/s/Pa. The mass flow rate is computed as:

\[\dot{m} = \dot{m}_{primary} + c f(\Delta P) \]

where f is a functions of pressure drop that is set by setPressureFunction. If no functions is specified, the mass flow rate defaults to:

\[\dot{m} = \dot{m}_{primary} + c \Delta P \]

Definition at line 100 of file flowControllers.h.

◆ getPressureCoeff()

double getPressureCoeff ( )

inline

Get the pressure coefficient.

Definition at line 105 of file flowControllers.h.

◆ updateMassFlowRate()

void updateMassFlowRate ( double time )

overridevirtual

Update the mass flow rate at time 'time'.

This must be overloaded in subclasses to update m_mdot.

Reimplemented from FlowDevice.

Definition at line 34 of file flowControllers.cpp.

Member Data Documentation

◆ m_primary

FlowDevice* m_primary = nullptr

protected

Definition at line 112 of file flowControllers.h.

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

Detailed Description

Public Member Functions

Protected Attributes

Member Function Documentation

◆ type()

◆ ready()

◆ setPrimary()

◆ setTimeFunction()

◆ setPressureCoeff()

◆ getPressureCoeff()

◆ updateMassFlowRate()

Member Data Documentation

◆ m_primary