This boundary condition provides a turbulent kinematic viscosity condition when using wall functions for rough walls, based on velocity, using Spalding's law to give a continuous nut profile to the wall (y+ = 0) More...

Inheritance diagram for nutUSpaldingWallFunctionFvPatchScalarField:

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

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

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

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

	nutUSpaldingWallFunctionFvPatchScalarField (const nutUSpaldingWallFunctionFvPatchScalarField &, const DimensionedField< scalar, volMesh > &)
	Copy constructor 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 tmp< scalarField >	yPlus () const
	Calculate and return the yPlus at the boundary. More...

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

Public Member Functions inherited from nutWallFunctionFvPatchScalarField
	TypeName ("nutWallFunction")
	Runtime type information. 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 fieldMapper &)
	Construct by mapping given. More...

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

	nutWallFunctionFvPatchScalarField (const nutWallFunctionFvPatchScalarField &, const DimensionedField< scalar, volMesh > &)
	Copy constructor 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 laminar sublayer. More...

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

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

Protected Member Functions
virtual tmp< scalarField >	nut () const
	Calculate the turbulence viscosity. More...

virtual tmp< scalarField >	calcUTau (const scalarField &magGradU) const
	Calculate the friction velocity. More...

Protected Member Functions inherited from nutWallFunctionFvPatchScalarField
virtual void	checkType ()
	Check the type of the patch. More...

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

Additional Inherited Members
Static Public Member Functions inherited from nutWallFunctionFvPatchScalarField
static const nutWallFunctionFvPatchScalarField &	nutw (const momentumTransportModel &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 laminar sublayer. More...

Protected Attributes inherited from nutWallFunctionFvPatchScalarField
scalar	Cmu_
	Cmu coefficient. More...

scalar	kappa_
	Von Karman constant. More...

scalar	E_
	E coefficient. More...

scalar	yPlusLam_
	Y+ at the edge of the laminar sublayer. More...

Detailed Description

This boundary condition provides a turbulent kinematic viscosity condition when using wall functions for rough walls, based on velocity, using Spalding's law to give a continuous nut profile to the wall (y+ = 0)

$y^+ = u^+ + \frac{1}{E} \left[exp(\kappa u^+) - 1 - \kappa u^+\, - 0.5 (\kappa u^+)^2 - \frac{1}{6} (\kappa u^+)^3\right]$

where

	=	non-dimensional position
	=	non-dimensional velocity
$\kappa$	=	Von Karman constant

Reference:

        Spalding, D. B., (1961).
        A Single Formula for the "Law of the Wall".
        Journal of Applied Mechanics, 28(3), 455-458

Usage

Example of the boundary condition specification:

<patchName>
{
    type            nutUSpaldingWallFunction;
    value           uniform 0;
}

See also: Foam::nutWallFunctionFvPatchScalarField

Source files

Definition at line 94 of file nutUSpaldingWallFunctionFvPatchScalarField.H.

Constructor & Destructor Documentation

◆ nutUSpaldingWallFunctionFvPatchScalarField() [1/4]

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

Construct from patch, internal field and dictionary.

Definition at line 122 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

Referenced by nutUSpaldingWallFunctionFvPatchScalarField::clone().

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◆ nutUSpaldingWallFunctionFvPatchScalarField() [2/4]

nutUSpaldingWallFunctionFvPatchScalarField	(	const nutUSpaldingWallFunctionFvPatchScalarField &	ptf,
		const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF,
		const fieldMapper &	mapper
	)

Construct by mapping given.

nutUSpaldingWallFunctionFvPatchScalarField onto a new patch

Definition at line 134 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

◆ nutUSpaldingWallFunctionFvPatchScalarField() [3/4]

nutUSpaldingWallFunctionFvPatchScalarField ( const nutUSpaldingWallFunctionFvPatchScalarField & )

delete

Disallow copy without setting internal field reference.

◆ nutUSpaldingWallFunctionFvPatchScalarField() [4/4]

nutUSpaldingWallFunctionFvPatchScalarField	(	const nutUSpaldingWallFunctionFvPatchScalarField &	wfpsf,
		const DimensionedField< scalar, volMesh > &	iF
	)

Copy constructor setting internal field reference.

Definition at line 147 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

Member Function Documentation

◆ nut()

tmp< scalarField > nut ( ) const

protectedvirtual

Calculate the turbulence viscosity.

Implements nutWallFunctionFvPatchScalarField.

Definition at line 39 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

References GeometricField< Type, PatchField, GeoMesh >::boundaryField(), nutUSpaldingWallFunctionFvPatchScalarField::calcUTau(), Foam::mag(), Foam::max(), momentumTransportModel::nu(), patchi, Foam::sqr(), and momentumTransportModel::U().

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◆ calcUTau()

tmp< scalarField > calcUTau ( const scalarField & magGradU ) const

protectedvirtual

Calculate the friction velocity.

Definition at line 59 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

References GeometricField< Type, PatchField, GeoMesh >::boundaryField(), nutWallFunctionFvPatchScalarField::E_, Foam::exp(), f(), forAll, nutWallFunctionFvPatchScalarField::kappa_, Foam::mag(), magUp, Foam::max(), Foam::min(), momentumTransportModel::nu(), nutWallFunctionFvPatchScalarField::nutw(), patchi, fvPatchField< Type >::patchInternalField(), tmp< T >::ref(), Foam::sqr(), Foam::sqrt(), momentumTransportModel::U(), uTau, y, and momentumTransportModel::yb().

Referenced by nutUSpaldingWallFunctionFvPatchScalarField::nut(), and nutUSpaldingWallFunctionFvPatchScalarField::yPlus().

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◆ TypeName()

TypeName ( "nutUSpaldingWallFunction" )

Runtime type information.

◆ clone()

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

inlinevirtual

Construct and return a clone setting internal field reference.

Definition at line 150 of file nutUSpaldingWallFunctionFvPatchScalarField.H.

References nutUSpaldingWallFunctionFvPatchScalarField::nutUSpaldingWallFunctionFvPatchScalarField().

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◆ yPlus()

tmp< scalarField > yPlus ( ) const

virtual

Calculate and return the yPlus at the boundary.

Implements nutWallFunctionFvPatchScalarField.

Definition at line 160 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

References GeometricField< Type, PatchField, GeoMesh >::boundaryField(), nutUSpaldingWallFunctionFvPatchScalarField::calcUTau(), Foam::mag(), momentumTransportModel::nu(), patchi, fvPatchField< Type >::snGrad(), momentumTransportModel::U(), y, and momentumTransportModel::yb().

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◆ write()

void write ( Ostream & os ) const

virtual

Write.

Reimplemented from nutWallFunctionFvPatchScalarField.

Definition at line 176 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

References fvPatchField< Type >::write(), Foam::writeEntry(), and nutWallFunctionFvPatchScalarField::writeLocalEntries().

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

src/MomentumTransportModels/momentumTransportModels/derivedFvPatchFields/wallFunctions/nutWallFunctions/nutUSpaldingWallFunction/nutUSpaldingWallFunctionFvPatchScalarField.H
src/MomentumTransportModels/momentumTransportModels/derivedFvPatchFields/wallFunctions/nutWallFunctions/nutUSpaldingWallFunction/nutUSpaldingWallFunctionFvPatchScalarField.C

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ nutUSpaldingWallFunctionFvPatchScalarField() [1/4]

◆ nutUSpaldingWallFunctionFvPatchScalarField() [2/4]

◆ nutUSpaldingWallFunctionFvPatchScalarField() [3/4]

◆ nutUSpaldingWallFunctionFvPatchScalarField() [4/4]

Member Function Documentation

◆ nut()

◆ calcUTau()

◆ TypeName()

◆ clone()

◆ yPlus()

◆ write()