Velocity inlet boundary condition creating a velocity field with optionally specified profile normal to the patch adjusted to match the specified mass flow rate, volumetric flow rate or mean velocity. More...

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Public Member Functions
	TypeName ("flowRateInletVelocity")
	Runtime type information. More...

	flowRateInletVelocityFvPatchVectorField (const fvPatch &, const DimensionedField< vector, volMesh > &, const dictionary &)
	Construct from patch, internal field and dictionary. More...

	flowRateInletVelocityFvPatchVectorField (const flowRateInletVelocityFvPatchVectorField &, const fvPatch &, const DimensionedField< vector, volMesh > &, const fvPatchFieldMapper &)
	Construct by mapping given. More...

	flowRateInletVelocityFvPatchVectorField (const flowRateInletVelocityFvPatchVectorField &)=delete
	Disallow copy without setting internal field reference. More...

	flowRateInletVelocityFvPatchVectorField (const flowRateInletVelocityFvPatchVectorField &, const DimensionedField< vector, volMesh > &)
	Copy constructor 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...

virtual void	map (const fvPatchVectorField &, const fvPatchFieldMapper &)
	Map the given fvPatchField onto this fvPatchField. More...

virtual void	reset (const fvPatchVectorField &)
	Reset the fvPatchField to the given fvPatchField. More...

virtual void	updateCoeffs ()
	Update the coefficients associated with the patch field. More...

virtual void	write (Ostream &) const
	Write. More...

Detailed Description

Velocity inlet boundary condition creating a velocity field with optionally specified profile normal to the patch adjusted to match the specified mass flow rate, volumetric flow rate or mean velocity.

For a mass-based flux:

the flow rate should be provided in kg/s
if rho is "none" the flow rate is in m3/s
otherwise rho should correspond to the name of the density field
if the density field cannot be found in the database, the user must specify the inlet density using the rhoInlet entry

For a volumetric-based flux:

the flow rate is in m3/s

Usage

Property	Description	Required	Default value
`massFlowRate`	Mass flow rate [kg/s]	no
`volumetricFlowRate`	Volumetric flow rate [m^3/s]	no
`meanVelocity`	Mean velocity [m/s]	no
`profile`	Velocity profile	no
`rho`	Density field name	no	rho
`rhoInlet`	Inlet density	no
`alpha`	Volume fraction field name	no

Example of the boundary condition specification for a volumetric flow rate:

    <patchName>
    {
        type                flowRateInletVelocity;
        volumetricFlowRate  0.2;
        profile             laminarBL;
    }

Example of the boundary condition specification for a mass flow rate:

    <patchName>
    {
        type                flowRateInletVelocity;
        massFlowRate        0.2;
        profile             turbulentBL;
        rho                 rho;
        rhoInlet            1.0;
    }

Example of the boundary condition specification for a volumetric flow rate:

    <patchName>
    {
        type                flowRateInletVelocity;
        meanVelocity        5;
        profile             turbulentBL;
    }

The volumetricFlowRate, massFlowRate or meanVelocity entries are Function1 of time, see Foam::Function1s.

The profile entry is a Function1 of the normalised distance to the wall. Any suitable Foam::Function1s can be used including Foam::Function1s::codedFunction1 but Foam::Function1s::laminarBL and Foam::Function1s::turbulentBL have been created specifically for this purpose and are likely to be appropriate for most cases.

Note:

rhoInlet is required for the case of a mass flow rate, where the density field is not available at start-up
The value is positive into the domain (as an inlet)
May not work correctly for transonic inlets
Strange behaviour with potentialFoam since the U equation is not solved

See also: Foam::fixedValueFvPatchField Foam::Function1s::laminarBL Foam::Function1s::turbulentBL Foam::Function1s Foam::flowRateOutletVelocityFvPatchVectorField

Source files

Definition at line 168 of file flowRateInletVelocityFvPatchVectorField.H.

Constructor & Destructor Documentation

◆ flowRateInletVelocityFvPatchVectorField() [1/4]

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

Construct from patch, internal field and dictionary.

Definition at line 136 of file flowRateInletVelocityFvPatchVectorField.C.

References UPstream::blocking, dict, Foam::evaluate(), Foam::exit(), Foam::FatalIOError, FatalIOErrorInFunction, Function1< Type >::New(), and p.

Referenced by flowRateInletVelocityFvPatchVectorField::clone().

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◆ flowRateInletVelocityFvPatchVectorField() [2/4]

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

Construct by mapping given.

flowRateInletVelocityFvPatchVectorField onto a new patch

Definition at line 200 of file flowRateInletVelocityFvPatchVectorField.C.

◆ flowRateInletVelocityFvPatchVectorField() [3/4]

flowRateInletVelocityFvPatchVectorField ( const flowRateInletVelocityFvPatchVectorField & )

delete

Disallow copy without setting internal field reference.

◆ flowRateInletVelocityFvPatchVectorField() [4/4]

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

Copy constructor setting internal field reference.

Definition at line 227 of file flowRateInletVelocityFvPatchVectorField.C.

Member Function Documentation

◆ TypeName()

TypeName ( "flowRateInletVelocity" )

Runtime type information.

◆ clone()

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

inlinevirtual

Construct and return a clone setting internal field reference.

Definition at line 272 of file flowRateInletVelocityFvPatchVectorField.H.

References flowRateInletVelocityFvPatchVectorField::flowRateInletVelocityFvPatchVectorField().

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◆ map()

void map	(	const fvPatchVectorField &	ptf,
		const fvPatchFieldMapper &	mapper
	)

virtual

Map the given fvPatchField onto this fvPatchField.

Definition at line 249 of file flowRateInletVelocityFvPatchVectorField.C.

◆ reset()

void reset ( const fvPatchVectorField & ptf )

virtual

Reset the fvPatchField to the given fvPatchField.

Used for mesh to mesh mapping

Definition at line 267 of file flowRateInletVelocityFvPatchVectorField.C.

◆ updateCoeffs()

void updateCoeffs ( )

virtual

Update the coefficients associated with the patch field.

Definition at line 284 of file flowRateInletVelocityFvPatchVectorField.C.

References Foam::exit(), Foam::FatalError, FatalErrorInFunction, and word::null.

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◆ write()

void write ( Ostream & os ) const

virtual

Write.

Definition at line 314 of file flowRateInletVelocityFvPatchVectorField.C.

References word::null, fvPatchField< Type >::write(), and Foam::writeEntry().

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

src/finiteVolume/fields/fvPatchFields/derived/flowRateInletVelocity/flowRateInletVelocityFvPatchVectorField.H
src/finiteVolume/fields/fvPatchFields/derived/flowRateInletVelocity/flowRateInletVelocityFvPatchVectorField.C

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ flowRateInletVelocityFvPatchVectorField() [1/4]

◆ flowRateInletVelocityFvPatchVectorField() [2/4]

◆ flowRateInletVelocityFvPatchVectorField() [3/4]

◆ flowRateInletVelocityFvPatchVectorField() [4/4]

Member Function Documentation

◆ TypeName()

◆ clone()

◆ map()

◆ reset()

◆ updateCoeffs()

◆ write()