This boundary condition provides a wall constraint on the turbulent kinematic viscosity, i.e. nut, when using wall functions for rough walls, based on turbulent kinetic energy, k. The condition manipulates the E parameter to account for roughness effects. More...

Inheritance diagram for nutkRoughWallFunctionFvPatchScalarField:

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

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

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

	nutkRoughWallFunctionFvPatchScalarField (const nutkRoughWallFunctionFvPatchScalarField &, const fvPatch &, const DimensionedField< scalar, volMesh > &, const fvPatchFieldMapper &)

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

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

	nutkRoughWallFunctionFvPatchScalarField (const nutkRoughWallFunctionFvPatchScalarField &, 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...

scalarField &	Ks ()

scalarField &	Cs ()

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

Public Member Functions inherited from nutkWallFunctionFvPatchScalarField
	TypeName ("nutkWallFunction")
	Runtime type information. More...

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

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

	nutkWallFunctionFvPatchScalarField (const nutkWallFunctionFvPatchScalarField &, const fvPatch &, const DimensionedField< scalar, volMesh > &, const fvPatchFieldMapper &)

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

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

virtual tmp< scalarField >	yPlus () const
	Calculate and return the yPlus at the boundary. More...

Public Member Functions inherited from nutWallFunctionFvPatchScalarField
	TypeName ("nutWallFunction")
	Runtime type information. More...

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

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

	nutWallFunctionFvPatchScalarField (const nutWallFunctionFvPatchScalarField &, const fvPatch &, const DimensionedField< scalar, volMesh > &, const fvPatchFieldMapper &)

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

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

scalar	Cmu () const
	Return Cmu. More...

scalar	kappa () const
	Return kappa. More...

scalar	E () const
	Return E. More...

scalar	yPlusLam () const
	Return the y+ at the edge of the viscous sublayer. More...

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

Protected Member Functions
virtual scalar	fnRough (const scalar KsPlus, const scalar Cs) const
	Compute the roughness function. More...

virtual tmp< scalarField >	calcNut () const
	Calculate the turbulence viscosity. More...

Protected Member Functions inherited from nutWallFunctionFvPatchScalarField
virtual const volVectorField &	U (const turbulenceModel &turb) const

virtual void	checkType ()
	Check the type of the patch. More...

virtual void	writeLocalEntries (Ostream &) const
	Write local wall function variables. More...

Protected Attributes
scalarField	Ks_
	Roughness height. More...

scalarField	Cs_
	Roughness constant. More...

Protected Attributes inherited from nutWallFunctionFvPatchScalarField
word	UName_
	Name of velocity field. More...

scalar	Cmu_
	Cmu coefficient. More...

scalar	kappa_
	Von Karman constant. More...

scalar	E_
	E coefficient. More...

scalar	yPlusLam_
	Estimated y+ value at the edge of the viscous sublayer. More...

Additional Inherited Members
Static Public Member Functions inherited from nutWallFunctionFvPatchScalarField
static const nutWallFunctionFvPatchScalarField &	nutw (const turbulenceModel &turbModel, const label patchi)
	Return the nut patchField for the given wall patch. More...

static scalar	yPlusLam (const scalar kappa, const scalar E)
	Calculate the y+ at the edge of the viscous sublayer. More...

Detailed Description

This boundary condition provides a wall constraint on the turbulent kinematic viscosity, i.e. nut, when using wall functions for rough walls, based on turbulent kinetic energy, k. The condition manipulates the E parameter to account for roughness effects.

Parameter ranges

roughness height = sand-grain roughness (0 for smooth walls)
roughness constant = 0.5-1.0

Usage

Property	Description	Required	Default value
`Ks`	Sand-grain roughness height	yes
`Cs`	Roughness constant	yes
`Cmu`	Model coefficient	no	0.09
`kappa`	Von Karman constant	no	0.41
`E`	Model coefficient	no	9.8

Example of the boundary condition specification:

    <patchName>
    {
        // Mandatory entries
        type            nutkRoughWallFunction;
        Ks              uniform 0;
        Cs              uniform 0.5;

        // Optional entries
    }

See also: Foam::nutkRoughWallFunctionFvPatchScalarField

Source files

Definition at line 117 of file nutkRoughWallFunctionFvPatchScalarField.H.

Constructor & Destructor Documentation

◆ nutkRoughWallFunctionFvPatchScalarField() [1/5]

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

Construct from patch and internal field.

Definition at line 132 of file nutkRoughWallFunctionFvPatchScalarField.C.

Referenced by nutkRoughWallFunctionFvPatchScalarField::clone().

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◆ nutkRoughWallFunctionFvPatchScalarField() [2/5]

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

Construct from patch, internal field and dictionary.

Definition at line 160 of file nutkRoughWallFunctionFvPatchScalarField.C.

◆ nutkRoughWallFunctionFvPatchScalarField() [3/5]

nutkRoughWallFunctionFvPatchScalarField	(	const nutkRoughWallFunctionFvPatchScalarField &	ptf,
		const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF,
		const fvPatchFieldMapper &	mapper
	)

Construct by mapping given nutkRoughWallFunctionFvPatchScalarField onto a new patch

Definition at line 145 of file nutkRoughWallFunctionFvPatchScalarField.C.

◆ nutkRoughWallFunctionFvPatchScalarField() [4/5]

nutkRoughWallFunctionFvPatchScalarField ( const nutkRoughWallFunctionFvPatchScalarField & rwfpsf )

Construct as copy.

Definition at line 174 of file nutkRoughWallFunctionFvPatchScalarField.C.

◆ nutkRoughWallFunctionFvPatchScalarField() [5/5]

nutkRoughWallFunctionFvPatchScalarField	(	const nutkRoughWallFunctionFvPatchScalarField &	rwfpsf,
		const DimensionedField< scalar, volMesh > &	iF
	)

Construct as copy setting internal field reference.

Definition at line 186 of file nutkRoughWallFunctionFvPatchScalarField.C.

Member Function Documentation

◆ fnRough()

Foam::scalar fnRough	(	const scalar	KsPlus,
		const scalar	Cs
	)		const

protectedvirtual

Compute the roughness function.

Definition at line 39 of file nutkRoughWallFunctionFvPatchScalarField.C.

References Cs, Foam::log(), Foam::pow(), and Foam::sin().

Referenced by nutkRoughWallFunctionFvPatchScalarField::calcNut().

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◆ calcNut()

Foam::tmp< Foam::scalarField > calcNut ( ) const

protectedvirtual

Calculate the turbulence viscosity.

Reimplemented from nutkWallFunctionFvPatchScalarField.

Definition at line 62 of file nutkRoughWallFunctionFvPatchScalarField.C.

References nutWallFunctionFvPatchScalarField::Cmu_, nutkRoughWallFunctionFvPatchScalarField::Cs_, Foam::expressions::patchExpr::debug, Foam::constant::electromagnetic::e, nutWallFunctionFvPatchScalarField::E_, Foam::endl(), nutkRoughWallFunctionFvPatchScalarField::fnRough(), forAll, Foam::constant::atomic::group, IOobject::groupName(), Foam::Info, k, turbulenceModel::k(), nutWallFunctionFvPatchScalarField::kappa_, nutkRoughWallFunctionFvPatchScalarField::Ks_, Foam::log(), Foam::max(), Foam::min(), turbulenceModel::nu(), nutWallFunctionFvPatchScalarField::nutw(), Foam::foamVersion::patch, Foam::pow025(), turbulenceModel::propertiesName, tmp< T >::ref(), Foam::sqrt(), y, turbulenceModel::y(), and nutkWallFunctionFvPatchScalarField::yPlus().

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◆ TypeName()

TypeName ( "nutkRoughWallFunction" )

Runtime type information.

◆ clone() [1/2]

virtual tmp<fvPatchScalarField> clone ( ) const

inlinevirtual

Construct and return a clone.

Reimplemented from nutkWallFunctionFvPatchScalarField.

Definition at line 182 of file nutkRoughWallFunctionFvPatchScalarField.H.

References nutkRoughWallFunctionFvPatchScalarField::nutkRoughWallFunctionFvPatchScalarField().

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◆ 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 nutkWallFunctionFvPatchScalarField.

Definition at line 199 of file nutkRoughWallFunctionFvPatchScalarField.H.

References nutkRoughWallFunctionFvPatchScalarField::nutkRoughWallFunctionFvPatchScalarField().

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◆ Ks()

scalarField& Ks ( )

inline

Definition at line 215 of file nutkRoughWallFunctionFvPatchScalarField.H.

References nutkRoughWallFunctionFvPatchScalarField::Ks_.

◆ Cs()

scalarField& Cs ( )

inline

Definition at line 221 of file nutkRoughWallFunctionFvPatchScalarField.H.

References nutkRoughWallFunctionFvPatchScalarField::Cs_.

◆ autoMap()

void autoMap ( const fvPatchFieldMapper & m )

virtual

Map (and resize as needed) from self given a mapping object.

Definition at line 200 of file nutkRoughWallFunctionFvPatchScalarField.C.

◆ rmap()

void rmap	(	const fvPatchScalarField &	ptf,
		const labelList &	addr
	)

virtual

Reverse map the given fvPatchField onto this fvPatchField.

Definition at line 211 of file nutkRoughWallFunctionFvPatchScalarField.C.

References nutkRoughWallFunctionFvPatchScalarField::Cs_, and nutkRoughWallFunctionFvPatchScalarField::Ks_.

◆ write()

void write ( Ostream & os ) const

virtual

Write.

Reimplemented from nutWallFunctionFvPatchScalarField.

Definition at line 227 of file nutkRoughWallFunctionFvPatchScalarField.C.

References fvPatchField< Type >::write().

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Member Data Documentation

◆ Ks_

scalarField Ks_

protected

Roughness height.

Definition at line 126 of file nutkRoughWallFunctionFvPatchScalarField.H.

Referenced by nutkRoughWallFunctionFvPatchScalarField::calcNut(), nutkRoughWallFunctionFvPatchScalarField::Ks(), and nutkRoughWallFunctionFvPatchScalarField::rmap().

◆ Cs_

scalarField Cs_

protected

Roughness constant.

Definition at line 129 of file nutkRoughWallFunctionFvPatchScalarField.H.

Referenced by nutkRoughWallFunctionFvPatchScalarField::calcNut(), nutkRoughWallFunctionFvPatchScalarField::Cs(), and nutkRoughWallFunctionFvPatchScalarField::rmap().

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

src/TurbulenceModels/turbulenceModels/derivedFvPatchFields/wallFunctions/nutWallFunctions/nutkRoughWallFunction/nutkRoughWallFunctionFvPatchScalarField.H
src/TurbulenceModels/turbulenceModels/derivedFvPatchFields/wallFunctions/nutWallFunctions/nutkRoughWallFunction/nutkRoughWallFunctionFvPatchScalarField.C

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ nutkRoughWallFunctionFvPatchScalarField() [1/5]

◆ nutkRoughWallFunctionFvPatchScalarField() [2/5]

◆ nutkRoughWallFunctionFvPatchScalarField() [3/5]

◆ nutkRoughWallFunctionFvPatchScalarField() [4/5]

◆ nutkRoughWallFunctionFvPatchScalarField() [5/5]

Member Function Documentation

◆ fnRough()

◆ calcNut()

◆ TypeName()

◆ clone() [1/2]

◆ clone() [2/2]

◆ Ks()

◆ Cs()

◆ autoMap()

◆ rmap()

◆ write()

Member Data Documentation

◆ Ks_

◆ Cs_