dynamicKEqn< BasicTurbulenceModel > Class Template Reference

Dynamic one equation eddy-viscosity model. More...

Inheritance diagram for dynamicKEqn< BasicTurbulenceModel >:

Collaboration diagram for dynamicKEqn< BasicTurbulenceModel >:

Public Types
typedef BasicTurbulenceModel::alphaField	alphaField
typedef BasicTurbulenceModel::rhoField	rhoField
typedef BasicTurbulenceModel::transportModel	transportModel
Public Types inherited from LESeddyViscosity< BasicTurbulenceModel >
typedef BasicTurbulenceModel::alphaField	alphaField
typedef BasicTurbulenceModel::rhoField	rhoField
typedef BasicTurbulenceModel::transportModel	transportModel
Public Types inherited from eddyViscosity< LESModel< BasicTurbulenceModel > >
typedef LESModel< BasicTurbulenceModel > ::alphaField	alphaField
typedef LESModel< BasicTurbulenceModel > ::rhoField	rhoField
typedef LESModel< BasicTurbulenceModel > ::transportModel	transportModel
Public Types inherited from linearViscousStress< LESModel< BasicTurbulenceModel > >
typedef LESModel< BasicTurbulenceModel > ::alphaField	alphaField
typedef LESModel< BasicTurbulenceModel > ::rhoField	rhoField
typedef LESModel< BasicTurbulenceModel > ::transportModel	transportModel
Public Types inherited from LESModel< BasicTurbulenceModel >
typedef BasicTurbulenceModel::alphaField	alphaField
typedef BasicTurbulenceModel::rhoField	rhoField
typedef BasicTurbulenceModel::transportModel	transportModel

Public Member Functions
	TypeName ("dynamicKEqn")
	Runtime type information. More...
	dynamicKEqn (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName=turbulenceModel::propertiesName, const word &type=typeName)
	Construct from components. More...
virtual	~dynamicKEqn ()
	Destructor. More...
virtual bool	read ()
	Read model coefficients if they have changed. More...
virtual tmp< volScalarField >	k () const
	Return SGS kinetic energy. More...
virtual tmp< volScalarField >	epsilon () const
	Return sub-grid disipation rate. More...
tmp< volScalarField >	DkEff () const
	Return the effective diffusivity for k. More...
virtual void	correct ()
	Correct Eddy-Viscosity and related properties. More...
Public Member Functions inherited from LESeddyViscosity< BasicTurbulenceModel >
	LESeddyViscosity (const word &type, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName=turbulenceModel::propertiesName)
	Construct from components. More...
virtual	~LESeddyViscosity ()
	Destructor. More...
Public Member Functions inherited from eddyViscosity< LESModel< BasicTurbulenceModel > >
	eddyViscosity (const word &modelName, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName)
	Construct from components. More...
virtual	~eddyViscosity ()
	Destructor. More...
volScalarField &	evNut ()
	Return non-const access to the turbulence viscosity. More...
virtual tmp< volScalarField >	nut () const
	Return the turbulence viscosity. More...
virtual tmp< scalarField >	nut (const label patchi) const
	Return the turbulence viscosity on patch. More...
virtual tmp< volScalarField >	k () const=0
	Return the turbulence kinetic energy. More...
virtual tmp< volSymmTensorField >	R () const
	Return the Reynolds stress tensor. More...
virtual void	validate ()
	Validate the turbulence fields after construction. More...
Public Member Functions inherited from linearViscousStress< LESModel< BasicTurbulenceModel > >
	linearViscousStress (const word &modelName, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName)
	Construct from components. More...
virtual	~linearViscousStress ()
	Destructor. More...
virtual tmp< volSymmTensorField >	devRhoReff () const
	Return the effective stress tensor. More...
virtual tmp< fvVectorMatrix >	divDevRhoReff (volVectorField &U) const
	Return the source term for the momentum equation. More...
virtual tmp< fvVectorMatrix >	divDevRhoReff (const volScalarField &rho, volVectorField &U) const
	Return the source term for the momentum equation. More...
Public Member Functions inherited from LESModel< BasicTurbulenceModel >
	TypeName ("LES")
	Runtime type information. More...
	declareRunTimeSelectionTable (autoPtr, LESModel, dictionary,(const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName),(alpha, rho, U, alphaRhoPhi, phi, transport, propertiesName))
	LESModel (const word &type, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName)
	Construct from components. More...
virtual	~LESModel ()
	Destructor. More...
virtual const dictionary &	coeffDict () const
	Const access to the coefficients dictionary. More...
const dimensionedScalar &	kMin () const
	Return the lower allowable limit for k (default: SMALL) More...
dimensionedScalar &	kMin ()
	Allow kMin to be changed. More...
const volScalarField &	delta () const
	Access function to filter width. More...
virtual tmp< volScalarField >	nuEff () const
	Return the effective viscosity. More...
virtual tmp< scalarField >	nuEff (const label patchi) const
	Return the effective viscosity on patch. More...

Protected Member Functions
volScalarField	Ck (const volSymmTensorField &D, const volScalarField &KK) const
	Calculate Ck by filtering the velocity field U. More...
volScalarField	Ce (const volSymmTensorField &D, const volScalarField &KK) const
	Calculate Ce by filtering the velocity field U. More...
volScalarField	Ce () const
void	correctNut (const volSymmTensorField &D, const volScalarField &KK)
	Update sub-grid eddy-viscosity. More...
virtual void	correctNut ()
virtual tmp< fvScalarMatrix >	kSource () const
Protected Member Functions inherited from LESModel< BasicTurbulenceModel >
virtual void	printCoeffs (const word &type)
	Print model coefficients. More...

Protected Attributes
volScalarField	k_
simpleFilter	simpleFilter_
autoPtr< LESfilter >	filterPtr_
LESfilter &	filter_
Protected Attributes inherited from LESeddyViscosity< BasicTurbulenceModel >
dimensionedScalar	Ce_
Protected Attributes inherited from eddyViscosity< LESModel< BasicTurbulenceModel > >
volScalarField	nut_
Protected Attributes inherited from LESModel< BasicTurbulenceModel >
dictionary	LESDict_
	LES coefficients dictionary. More...
Switch	turbulence_
	Turbulence on/off flag. More...
Switch	printCoeffs_
	Flag to print the model coeffs at run-time. More...
dictionary	coeffDict_
	Model coefficients dictionary. More...
dimensionedScalar	kMin_
	Lower limit of k. More...
dimensionedScalar	omegaMin_
	Lower limit of omega. More...
autoPtr< Foam::LESdelta >	delta_
	Run-time selectable delta model. More...

Private Member Functions
	dynamicKEqn (const dynamicKEqn &)
dynamicKEqn &	operator= (const dynamicKEqn &)

Additional Inherited Members
Static Public Member Functions inherited from LESModel< BasicTurbulenceModel >
static autoPtr< LESModel >	New (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport, const word &propertiesName=turbulenceModel::propertiesName)
	Return a reference to the selected LES model. More...

Detailed Description

template<class BasicTurbulenceModel>
class Foam::LESModels::dynamicKEqn< BasicTurbulenceModel >

Dynamic one equation eddy-viscosity model.

Eddy viscosity SGS model using a modeled balance equation to simulate the behaviour of k in which a dynamic procedure is applied to evaluate the coefficients.

Reference:

    Kim, W and Menon, S. (1995).
    A new dynamic one-equation subgrid-scale model for
    large eddy simulation.
    In 33rd Aerospace Sciences Meeting and Exhibit, Reno, NV, 1995.

There are no default model coefficients but the filter used for KK must be supplied, e.g.

    dynamicKEqnCoeffs
    {
        filter simple;
    }

Source files

• dynamicKEqn.H
• dynamicKEqn.C

Definition at line 76 of file dynamicKEqn.H.

Member Typedef Documentation

alphaField

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 135 of file dynamicKEqn.H.

rhoField

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 136 of file dynamicKEqn.H.

transportModel

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 137 of file dynamicKEqn.H.

Constructor & Destructor Documentation

dynamicKEqn() [1/2]

dynamicKEqn ( const dynamicKEqn< BasicTurbulenceModel > &  )

private

dynamicKEqn() [2/2]

dynamicKEqn	(	const alphaField &	alpha,
		const rhoField &	rho,
		const volVectorField &	U,
		const surfaceScalarField &	alphaRhoPhi,
		const surfaceScalarField &	phi,
		const transportModel &	transport,
		const word &	propertiesName = turbulenceModel::propertiesName,
		const word &	type = typeName
	)

Construct from components.

Definition at line 150 of file dynamicKEqn.C.

References Foam::bound(), and Foam::type().

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~dynamicKEqn()

virtual ~dynamicKEqn ( )

inlinevirtual

Destructor.

Definition at line 161 of file dynamicKEqn.H.

Member Function Documentation

operator=()

dynamicKEqn& operator= ( const dynamicKEqn< BasicTurbulenceModel > &  )

private

Ck()

volScalarField Ck ( const volSymmTensorField &  D, const volScalarField &  KK  ) const

protected

Calculate Ck by filtering the velocity field U.

Definition at line 39 of file dynamicKEqn.C.

References delta, Foam::dev(), Foam::mag(), Foam::magSqr(), Foam::max(), Foam::sqr(), and Foam::sqrt().

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Ce() [1/2]

volScalarField Ce ( const volSymmTensorField &  D, const volScalarField &  KK  ) const

protected

Calculate Ce by filtering the velocity field U.

Definition at line 76 of file dynamicKEqn.C.

References delta, Foam::mag(), Foam::magSqr(), and Foam::pow().

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Ce() [2/2]

volScalarField Ce

protected

Definition at line 93 of file dynamicKEqn.C.

References Foam::dev(), Foam::fvc::grad(), Foam::magSqr(), GeometricField::max(), and Foam::symm().

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correctNut() [1/2]

void correctNut ( const volSymmTensorField &  D, const volScalarField &  KK  )

protected

Update sub-grid eddy-viscosity.

Definition at line 109 of file dynamicKEqn.C.

References delta, and Foam::sqrt().

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correctNut() [2/2]

void correctNut

protectedvirtual

Implements eddyViscosity< LESModel< BasicTurbulenceModel > >.

Definition at line 120 of file dynamicKEqn.C.

References Foam::fvc::grad(), Foam::magSqr(), and Foam::symm().

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kSource()

tmp< fvScalarMatrix > kSource

protectedvirtual

Definition at line 132 of file dynamicKEqn.C.

References Foam::dimTime, and Foam::dimVolume.

TypeName()

TypeName

(

"dynamicKEqn< BasicTurbulenceModel >"

)

Runtime type information.

read()

bool read

virtual

Read model coefficients if they have changed.

Reimplemented from LESeddyViscosity< BasicTurbulenceModel >.

Definition at line 202 of file dynamicKEqn.C.

k()

virtual tmp<volScalarField> k ( ) const

inlinevirtual

Return SGS kinetic energy.

Definition at line 171 of file dynamicKEqn.H.

References dynamicKEqn< BasicTurbulenceModel >::k_.

epsilon()

tmp< volScalarField > epsilon

virtual

Return sub-grid disipation rate.

Reimplemented from LESeddyViscosity< BasicTurbulenceModel >.

Definition at line 218 of file dynamicKEqn.C.

References delta, IOobject::groupName(), k, IOobject::NO_READ, IOobject::NO_WRITE, and Foam::sqrt().

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DkEff()

tmp<volScalarField> DkEff ( ) const

inline

Return the effective diffusivity for k.

Definition at line 180 of file dynamicKEqn.H.

References nu, and eddyViscosity< LESModel< BasicTurbulenceModel > >::nut_.

correct()

void correct

virtual

Correct Eddy-Viscosity and related properties.

Implements eddyViscosity< LESModel< BasicTurbulenceModel > >.

Definition at line 239 of file dynamicKEqn.C.

References Foam::fvc::absolute(), Foam::constant::atomic::alpha, Foam::bound(), tmp::clear(), eddyViscosity< LESModel< BasicTurbulenceModel > >::correct(), Foam::fvm::ddt(), delta, Foam::dev(), Foam::fvm::div(), Foam::fvc::div(), divU(), Foam::constant::universal::G, Foam::fvc::grad(), Foam::fvm::laplacian(), Foam::magSqr(), GeometricField::max(), nut, phi, rho, Foam::fvm::Sp(), Foam::sqrt(), Foam::fvm::SuSp(), Foam::symm(), and U.

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Field Documentation

k_

volScalarField k_

protected

Definition at line 93 of file dynamicKEqn.H.

Referenced by dynamicKEqn< BasicTurbulenceModel >::k().

simpleFilter_

simpleFilter simpleFilter_

protected

Definition at line 98 of file dynamicKEqn.H.

filterPtr_

autoPtr<LESfilter> filterPtr_

protected

Definition at line 99 of file dynamicKEqn.H.

filter_

LESfilter& filter_

protected

Definition at line 100 of file dynamicKEqn.H.

---

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

• src/TurbulenceModels/turbulenceModels/LES/dynamicKEqn/dynamicKEqn.H
• src/TurbulenceModels/turbulenceModels/LES/dynamicKEqn/dynamicKEqn.C