variableHeightFlowRateInletVelocityFvPatchVectorField Class Reference

This boundary condition provides a velocity boundary condition for multphase flow based on a user-specified volumetric flow rate. More...

Inheritance diagram for variableHeightFlowRateInletVelocityFvPatchVectorField:

Collaboration diagram for variableHeightFlowRateInletVelocityFvPatchVectorField:

Public Member Functions
	TypeName ("variableHeightFlowRateInletVelocity")
	Runtime type information. More...
	variableHeightFlowRateInletVelocityFvPatchVectorField (const fvPatch &, const DimensionedField< vector, volMesh > &)
	Construct from patch and internal field. More...
	variableHeightFlowRateInletVelocityFvPatchVectorField (const fvPatch &, const DimensionedField< vector, volMesh > &, const dictionary &)
	Construct from patch, internal field and dictionary. More...
	variableHeightFlowRateInletVelocityFvPatchVectorField (const variableHeightFlowRateInletVelocityFvPatchVectorField &, const fvPatch &, const DimensionedField< vector, volMesh > &, const fvPatchFieldMapper &)
	Construct by mapping given. More...
	variableHeightFlowRateInletVelocityFvPatchVectorField (const variableHeightFlowRateInletVelocityFvPatchVectorField &)
	Construct as copy. More...
virtual tmp< fvPatchVectorField >	clone () const
	Construct and return a clone. More...
	variableHeightFlowRateInletVelocityFvPatchVectorField (const variableHeightFlowRateInletVelocityFvPatchVectorField &, const DimensionedField< vector, volMesh > &)
	Construct as copy setting internal field reference. More...
virtual tmp< fvPatchVectorField >	clone (const DimensionedField< vector, volMesh > &iF) const
	Construct and return a clone setting internal field reference. More...
scalar	flowRate () const
	Return the flux. More...
scalar &	flowRate ()
	Return reference to the flux to allow adjustment. More...
virtual void	updateCoeffs ()
	Update the coefficients associated with the patch field. More...
virtual void	write (Ostream &) const
	Write. More...

Private Attributes
scalar	flowRate_
	Inlet integral flow rate. More...
word	alphaName_
	Name of the phase-fraction field. More...

Detailed Description

This boundary condition provides a velocity boundary condition for multphase flow based on a user-specified volumetric flow rate.

The flow rate is made proportional to the phase fraction alpha at each face of the patch and alpha is ensured to be bound between 0 and 1.

Patch usage

Property	Description	Required	Default value
flowRate	volumetric flow rate [m3/s]	yes
alpha	phase-fraction field	yes

Example of the boundary condition specification:

    myPatch
    {
        type            variableHeightFlowRateInletVelocity;
        flowRate        0.2;
        alpha           alpha.water;
        value           uniform (0 0 0); // placeholder
    }

Note

• the value is positive into the domain
• may not work correctly for transonic inlets
• strange behaviour with potentialFoam since the momentum equation is not solved

See also

Foam::fixedValueFvPatchField

Source files

• variableHeightFlowRateInletVelocityFvPatchVectorField.H
• variableHeightFlowRateInletVelocityFvPatchVectorField.C

Definition at line 97 of file variableHeightFlowRateInletVelocityFvPatchVectorField.H.

Constructor & Destructor Documentation

variableHeightFlowRateInletVelocityFvPatchVectorField() [1/5]

variableHeightFlowRateInletVelocityFvPatchVectorField	(	const fvPatch &	p,
		const DimensionedField< vector, volMesh > &	iF
	)

Construct from patch and internal field.

Definition at line 36 of file variableHeightFlowRateInletVelocityFvPatchVectorField.C.

Referenced by variableHeightFlowRateInletVelocityFvPatchVectorField::clone().

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variableHeightFlowRateInletVelocityFvPatchVectorField() [2/5]

variableHeightFlowRateInletVelocityFvPatchVectorField	(	const fvPatch &	p,
		const DimensionedField< vector, volMesh > &	iF,
		const dictionary &	dict
	)

Construct from patch, internal field and dictionary.

Definition at line 64 of file variableHeightFlowRateInletVelocityFvPatchVectorField.C.

variableHeightFlowRateInletVelocityFvPatchVectorField() [3/5]

variableHeightFlowRateInletVelocityFvPatchVectorField	(	const variableHeightFlowRateInletVelocityFvPatchVectorField &	ptf,
		const fvPatch &	p,
		const DimensionedField< vector, volMesh > &	iF,
		const fvPatchFieldMapper &	mapper
	)

Construct by mapping given.

variableHeightFlowRateInletVelocityFvPatchVectorField onto a new patch

Definition at line 49 of file variableHeightFlowRateInletVelocityFvPatchVectorField.C.

variableHeightFlowRateInletVelocityFvPatchVectorField() [4/5]

variableHeightFlowRateInletVelocityFvPatchVectorField

(

const variableHeightFlowRateInletVelocityFvPatchVectorField &

ptf

)

Construct as copy.

Definition at line 78 of file variableHeightFlowRateInletVelocityFvPatchVectorField.C.

variableHeightFlowRateInletVelocityFvPatchVectorField() [5/5]

variableHeightFlowRateInletVelocityFvPatchVectorField	(	const variableHeightFlowRateInletVelocityFvPatchVectorField &	ptf,
		const DimensionedField< vector, volMesh > &	iF
	)

Construct as copy setting internal field reference.

Definition at line 90 of file variableHeightFlowRateInletVelocityFvPatchVectorField.C.

Member Function Documentation

TypeName()

TypeName

(

"variableHeightFlowRateInletVelocity"

)

Runtime type information.

clone() [1/2]

virtual tmp<fvPatchVectorField> clone ( ) const

inlinevirtual

Construct and return a clone.

Definition at line 151 of file variableHeightFlowRateInletVelocityFvPatchVectorField.H.

References variableHeightFlowRateInletVelocityFvPatchVectorField::variableHeightFlowRateInletVelocityFvPatchVectorField().

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clone() [2/2]

virtual tmp<fvPatchVectorField> clone ( const DimensionedField< vector, volMesh > &  iF ) const

inlinevirtual

Construct and return a clone setting internal field reference.

Definition at line 168 of file variableHeightFlowRateInletVelocityFvPatchVectorField.H.

flowRate() [1/2]

scalar flowRate ( ) const

inline

Return the flux.

Definition at line 188 of file variableHeightFlowRateInletVelocityFvPatchVectorField.H.

References variableHeightFlowRateInletVelocityFvPatchVectorField::flowRate_.

flowRate() [2/2]

scalar& flowRate ( )

inline

Return reference to the flux to allow adjustment.

Definition at line 194 of file variableHeightFlowRateInletVelocityFvPatchVectorField.H.

References variableHeightFlowRateInletVelocityFvPatchVectorField::flowRate_.

updateCoeffs()

void updateCoeffs ( )

virtual

Update the coefficients associated with the patch field.

Definition at line 104 of file variableHeightFlowRateInletVelocityFvPatchVectorField.C.

References Foam::gSum(), Foam::max(), Foam::min(), n, and Foam::operator==().

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write()

void write ( Ostream &  os ) const

virtual

Write.

Definition at line 129 of file variableHeightFlowRateInletVelocityFvPatchVectorField.C.

References Foam::nl, write(), and Ostream::writeKeyword().

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Field Documentation

flowRate_

scalar flowRate_

private

Inlet integral flow rate.

Definition at line 104 of file variableHeightFlowRateInletVelocityFvPatchVectorField.H.

Referenced by variableHeightFlowRateInletVelocityFvPatchVectorField::flowRate().

alphaName_

word alphaName_

private

Name of the phase-fraction field.

Definition at line 107 of file variableHeightFlowRateInletVelocityFvPatchVectorField.H.

---

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

• src/finiteVolume/fields/fvPatchFields/derived/variableHeightFlowRateInletVelocity/variableHeightFlowRateInletVelocityFvPatchVectorField.H
• src/finiteVolume/fields/fvPatchFields/derived/variableHeightFlowRateInletVelocity/variableHeightFlowRateInletVelocityFvPatchVectorField.C