This boundary condition can be applied to assign either a pressure inlet or outlet total pressure condition for a fan. More...

Inheritance diagram for fanPressureFvPatchScalarField:

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Collaboration diagram for fanPressureFvPatchScalarField:

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Public Types
enum	fanFlowDirection : uint8_t { ffdIn , ffdOut }
	Fan flow direction. More...

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

	fanPressureFvPatchScalarField (const fvPatch &, const DimensionedField< scalar, volMesh > &)
	Construct from patch and internal field. More...

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

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

	fanPressureFvPatchScalarField (const fanPressureFvPatchScalarField &)
	Construct as copy. More...

virtual tmp< fvPatchScalarField >	clone () const
	Construct and return a clone. More...

	fanPressureFvPatchScalarField (const fanPressureFvPatchScalarField &, const DimensionedField< scalar, volMesh > &)
	Construct as copy setting internal field reference. More...

virtual tmp< fvPatchScalarField >	clone (const DimensionedField< scalar, volMesh > &iF) const
	Construct and return a clone setting internal field reference. More...

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

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

Public Member Functions inherited from totalPressureFvPatchScalarField
	TypeName ("totalPressure")
	Runtime type information. More...

	totalPressureFvPatchScalarField (const fvPatch &, const DimensionedField< scalar, volMesh > &)
	Construct from patch and internal field. More...

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

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

	totalPressureFvPatchScalarField (const totalPressureFvPatchScalarField &)
	Construct as copy. More...

virtual tmp< fvPatchScalarField >	clone () const
	Construct and return a clone. More...

	totalPressureFvPatchScalarField (const totalPressureFvPatchScalarField &, const DimensionedField< scalar, volMesh > &)
	Construct as copy setting internal field reference. More...

virtual tmp< fvPatchScalarField >	clone (const DimensionedField< scalar, volMesh > &iF) const
	Construct and return a clone setting internal field reference. More...

const word &	UName () const
	Return the name of the velocity field. More...

word &	UName ()
	Return reference to the name of the velocity field. More...

const word &	phiName () const
	Return the name of the flux field. More...

word &	phiName ()
	Return reference to the name of the flux field. More...

const word &	rhoName () const
	Return the name of the density field. More...

word &	rhoName ()
	Return reference to the name of the density field. More...

const word &	psiName () const
	Return the name of the compressibility field. More...

word &	psiName ()
	Return reference to the name of the compressibility field. More...

scalar	gamma () const
	Return the heat capacity ratio. More...

scalar &	gamma ()
	Return reference to the heat capacity ratio to allow adjustment. More...

const scalarField &	p0 () const
	Return the total pressure. More...

scalarField &	p0 ()
	Return reference to the total pressure to allow adjustment. More...

virtual void	autoMap (const fvPatchFieldMapper &)
	Map (and resize as needed) from self given a mapping object. More...

virtual void	rmap (const fvPatchScalarField &, const labelList &)
	Reverse map the given fvPatchField onto this fvPatchField. More...

virtual void	updateCoeffs (const scalarField &p0p, const vectorField &Up)
	Update the coefficients associated with the patch field. More...

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

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

Static Public Attributes
static const Enum< fanFlowDirection >	fanFlowDirectionNames_
	Fan flow direction names. More...

Detailed Description

This boundary condition can be applied to assign either a pressure inlet or outlet total pressure condition for a fan.

The switch nonDimensional can be used for a non-dimensional fan curve. It needs inputs rpm and dm of the fan.

The nonDimensional flux is calculate as :

phi = 4.0*mDot/(rho*sqr(PI)*dm^3*omega) where: dm is the mean diameter. omega is rad/sec.

The nonDimensinal pressure :

Psi = 2 deltaP/(rho*(sqr(PI*omega*dm))) where: deltaP is the pressure drop

The non-dimensional table should be given as Psi = F(phi).

Usage

Property	Description	Required	Default
`fanCurve`	Pressure vs flow-rate	yes
`direction`	direction of flow through fan [in/out]	yes
`p0`	environmental total pressure	yes
`nonDimensional`	uses non-dimensional table	no	false
`rpm`	fan rpm for non-dimensional table	no
`dm`	mean diameter for non-dimensional table	no
`file`	fan curve file name	legacy
`outOfBounds`	out of bounds handling	legacy

Example of the boundary condition specification:

    inlet
    {
        type            fanPressure;
        direction       in;
        fanCurve
        {
            type table;
            file "<constant>/fanCurve";
            outOfBounds clamp;  // Optional out-of-bounds handling
        }
        p0              uniform 0;
        value           uniform 0;
    }

    // Legacy specification
    outlet
    {
        type            fanPressure;
        direction       out;
        file            "<constant>/fanCurve";
        outOfBounds     clamp;
        p0              uniform 0;
        value           uniform 0;
    }

Note: For compatibility with older versions (OpenFOAM-v2006 and earlier), a missing fanCurve keyword is treated as a tableFile and makes the file keyword mandatory.

See also: Foam::fanFvPatchField Foam::totalPressureFvPatchScalarField Foam::Function1

Source files

Definition at line 170 of file fanPressureFvPatchScalarField.H.

Member Enumeration Documentation

◆ fanFlowDirection

enum fanFlowDirection : uint8_t

Fan flow direction.

Enumerator
ffdIn
ffdOut

Definition at line 177 of file fanPressureFvPatchScalarField.H.

Constructor & Destructor Documentation

◆ fanPressureFvPatchScalarField() [1/5]

fanPressureFvPatchScalarField	(	const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF
	)

Construct from patch and internal field.

Definition at line 50 of file fanPressureFvPatchScalarField.C.

◆ fanPressureFvPatchScalarField() [2/5]

fanPressureFvPatchScalarField	(	const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF,
		const dictionary &	dict
	)

Construct from patch, internal field and dictionary.

Definition at line 82 of file fanPressureFvPatchScalarField.C.

References dict, and dictionary::found().

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◆ fanPressureFvPatchScalarField() [3/5]

fanPressureFvPatchScalarField	(	const fanPressureFvPatchScalarField &	rhs,
		const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF,
		const fvPatchFieldMapper &	mapper
	)

Construct by mapping given.

fanPressureFvPatchScalarField onto a new patch

Definition at line 65 of file fanPressureFvPatchScalarField.C.

◆ fanPressureFvPatchScalarField() [4/5]

fanPressureFvPatchScalarField ( const fanPressureFvPatchScalarField & rhs )

Construct as copy.

Definition at line 117 of file fanPressureFvPatchScalarField.C.

◆ fanPressureFvPatchScalarField() [5/5]

fanPressureFvPatchScalarField	(	const fanPressureFvPatchScalarField &	rhs,
		const DimensionedField< scalar, volMesh > &	iF
	)

Construct as copy setting internal field reference.

Definition at line 131 of file fanPressureFvPatchScalarField.C.

Member Function Documentation

◆ TypeName()

TypeName ( "fanPressure" )

Runtime type information.

◆ clone() [1/2]

virtual tmp< fvPatchScalarField > clone ( ) const

inlinevirtual

Construct and return a clone.

Reimplemented from totalPressureFvPatchScalarField.

Definition at line 248 of file fanPressureFvPatchScalarField.H.

◆ clone() [2/2]

virtual tmp< fvPatchScalarField > clone ( const DimensionedField< scalar, volMesh > & iF ) const

inlinevirtual

Construct and return a clone setting internal field reference.

Reimplemented from totalPressureFvPatchScalarField.

Definition at line 264 of file fanPressureFvPatchScalarField.H.

◆ updateCoeffs()

void updateCoeffs ( )

virtual

Update the coefficients associated with the patch field.

Reimplemented from totalPressureFvPatchScalarField.

Definition at line 148 of file fanPressureFvPatchScalarField.C.

References Foam::dimArea, Foam::dimDensity, DimensionedField< Type, GeoMesh >::dimensions(), Foam::dimVelocity, Foam::exit(), Foam::FatalError, FatalErrorInFunction, Foam::gSum(), Foam::max(), Foam::nl, p0, phi, Foam::constant::mathematical::pi(), Foam::pow3(), Foam::pow4(), Foam::sqr(), Foam::stabilise(), UName(), and totalPressureFvPatchScalarField::updateCoeffs().

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◆ write()

void write ( Ostream & os ) const

virtual

Write.

Reimplemented from totalPressureFvPatchScalarField.

Definition at line 226 of file fanPressureFvPatchScalarField.C.

References os(), ObukhovLength::write(), and Ostream::writeEntry().

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Member Data Documentation

◆ fanFlowDirectionNames_

const Foam::Enum< Foam::fanPressureFvPatchScalarField::fanFlowDirection > fanFlowDirectionNames_

static

Fan flow direction names.

Definition at line 184 of file fanPressureFvPatchScalarField.H.

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

src/finiteVolume/fields/fvPatchFields/derived/fanPressure/fanPressureFvPatchScalarField.H
src/finiteVolume/fields/fvPatchFields/derived/fanPressure/fanPressureFvPatchScalarField.C

Public Types

Public Member Functions

Static Public Attributes

Detailed Description

Member Enumeration Documentation

◆ fanFlowDirection

Constructor & Destructor Documentation

◆ fanPressureFvPatchScalarField() [1/5]

◆ fanPressureFvPatchScalarField() [2/5]

◆ fanPressureFvPatchScalarField() [3/5]

◆ fanPressureFvPatchScalarField() [4/5]

◆ fanPressureFvPatchScalarField() [5/5]

Member Function Documentation

◆ TypeName()

◆ clone() [1/2]

◆ clone() [2/2]

◆ updateCoeffs()

◆ write()

Member Data Documentation

◆ fanFlowDirectionNames_