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 BasicTurbulenceModel::alphaField	alphaField
typedef BasicTurbulenceModel::rhoField	rhoField
typedef BasicTurbulenceModel::transportModel	transportModel
Public Types inherited from linearViscousStress< 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 ()=default
	Destructor. More...
virtual bool	read ()
	Read model coefficients if they have changed. More...
virtual tmp< volScalarField >	k () const
	Return SGS kinetic energy. 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 ()=default
	Destructor. More...
virtual bool	read ()
	Read model coefficients if they have changed. 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 ()=default
	Destructor. More...
virtual bool	read ()=0
	Re-read model coefficients if they have changed. 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...
virtual void	correct ()=0
	Solve the turbulence equations and correct the turbulence viscosity. More...
Public Member Functions inherited from linearViscousStress< 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 ()=default
	Destructor. More...
virtual bool	read ()=0
	Re-read model coefficients if they have changed. More...
virtual tmp< volSymmTensorField >	devRhoReff () const
	Return the effective stress tensor. More...
virtual tmp< volSymmTensorField >	devRhoReff (const volVectorField &U) const
	Return the effective stress tensor based on a given velocity field. 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...
virtual void	correct ()=0
	Solve the turbulence equations and correct the turbulence viscosity. 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
virtual void	correctNut ()=0

Protected Attributes
volScalarField	k_
simpleFilter	simpleFilter_
autoPtr< LESfilter >	filterPtr_
LESfilter &	filter_
Protected Attributes inherited from eddyViscosity< LESModel< BasicTurbulenceModel > >
volScalarField	nut_

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 79 of file dynamicKEqn.H.

Member Typedef Documentation

alphaField

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 140 of file dynamicKEqn.H.

rhoField

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 141 of file dynamicKEqn.H.

transportModel

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 142 of file dynamicKEqn.H.

Constructor & Destructor Documentation

dynamicKEqn()

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 156 of file dynamicKEqn.C.

References Foam::bound(), dynamicKEqn< BasicTurbulenceModel >::k_, and Foam::type().

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~dynamicKEqn()

virtual ~dynamicKEqn ( )

virtualdefault

Destructor.

Member Function Documentation

Ck()

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

protected

Calculate Ck by filtering the velocity field U.

Definition at line 42 of file dynamicKEqn.C.

References D, delta, Foam::dev(), DimensionedField< Type, GeoMesh >::dimensions(), Foam::mag(), Foam::magSqr(), Foam::max(), Foam::sqr(), Foam::sqrt(), and Foam::Zero.

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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 79 of file dynamicKEqn.C.

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

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Ce() [2/2]

volScalarField Ce

protected

Definition at line 97 of file dynamicKEqn.C.

References D, Foam::dev(), DimensionedField< Type, GeoMesh >::dimensions(), Foam::fvc::grad(), Foam::magSqr(), GeometricField< Type, PatchField, GeoMesh >::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 112 of file dynamicKEqn.C.

References D, delta, Time::New(), and Foam::sqrt().

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correctNut() [2/2]

void correctNut

protectedvirtual

Implements eddyViscosity< LESModel< BasicTurbulenceModel > >.

Definition at line 127 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 139 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 209 of file dynamicKEqn.C.

k()

virtual tmp< volScalarField > k ( ) const

inlinevirtual

Return SGS kinetic energy.

Implements eddyViscosity< LESModel< BasicTurbulenceModel > >.

Definition at line 175 of file dynamicKEqn.H.

References dynamicKEqn< BasicTurbulenceModel >::k_.

DkEff()

tmp< volScalarField > DkEff ( ) const

inline

Return the effective diffusivity for k.

Definition at line 181 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 223 of file dynamicKEqn.C.

References Foam::fvc::absolute(), alpha, Foam::bound(), tmp< T >::clear(), kEpsilonLopesdaCosta< BasicTurbulenceModel >::correct(), D, Foam::fvm::ddt(), delta, Foam::dev(), DimensionedField< Type, GeoMesh >::dimensions(), Foam::fvc::div(), Foam::fvm::div(), divU, fvOptions, Foam::fvc::grad(), Foam::fvm::laplacian(), Foam::magSqr(), GeometricField< Type, PatchField, GeoMesh >::max(), Time::New(), nut, phi, rho, solve(), Foam::fvm::Sp(), Foam::sqrt(), Foam::fvm::SuSp(), Foam::symm(), and U.

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Member Data Documentation

k_

volScalarField k_

protected

Definition at line 98 of file dynamicKEqn.H.

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

simpleFilter_

simpleFilter simpleFilter_

protected

Definition at line 103 of file dynamicKEqn.H.

filterPtr_

autoPtr<LESfilter> filterPtr_

protected

Definition at line 104 of file dynamicKEqn.H.

filter_

LESfilter& filter_

protected

Definition at line 105 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