LRR< BasicTurbulenceModel > Class Template Reference

Launder, Reece and Rodi Reynolds-stress turbulence model for incompressible and compressible flows. More...

Inheritance diagram for LRR< BasicTurbulenceModel >:

Collaboration diagram for LRR< BasicTurbulenceModel >:

Public Types
typedef BasicTurbulenceModel::alphaField	alphaField
typedef BasicTurbulenceModel::rhoField	rhoField
typedef BasicTurbulenceModel::transportModel	transportModel
Public Types inherited from ReynoldsStress< RASModel< BasicTurbulenceModel > >
typedef RASModel< BasicTurbulenceModel > ::alphaField	alphaField
typedef RASModel< BasicTurbulenceModel > ::rhoField	rhoField
typedef RASModel< BasicTurbulenceModel > ::transportModel	transportModel
Public Types inherited from RASModel< BasicTurbulenceModel >
typedef BasicTurbulenceModel::alphaField	alphaField
typedef BasicTurbulenceModel::rhoField	rhoField
typedef BasicTurbulenceModel::transportModel	transportModel

Public Member Functions
	TypeName ("LRR")
	Runtime type information. More...
	LRR (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	~LRR ()
	Destructor. More...
virtual bool	read ()
	Read model coefficients if they have changed. More...
virtual tmp< volScalarField >	k () const
	Return the turbulence kinetic energy. More...
virtual tmp< volScalarField >	epsilon () const
	Return the turbulence kinetic energy dissipation rate. More...
tmp< volSymmTensorField >	DREff () const
	Return the effective diffusivity for R. More...
tmp< volSymmTensorField >	DepsilonEff () const
	Return the effective diffusivity for epsilon. More...
virtual void	correct ()
	Solve the turbulence equations and correct eddy-Viscosity and. More...
Public Member Functions inherited from ReynoldsStress< RASModel< BasicTurbulenceModel > >
Foam::tmp< Foam::fvVectorMatrix >	DivDevRhoReff (const RhoFieldType &rho, volVectorField &U) const
	ReynoldsStress (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	~ReynoldsStress ()
	Destructor. 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< volSymmTensorField >	R () const
	Return the Reynolds stress tensor. 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...
virtual void	validate ()
	Validate the turbulence fields after construction. More...
Public Member Functions inherited from RASModel< BasicTurbulenceModel >
	TypeName ("RAS")
	Runtime type information. More...
	declareRunTimeSelectionTable (autoPtr, RASModel, 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))
	RASModel (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	~RASModel ()
	Destructor. More...
const dimensionedScalar &	kMin () const
	Return the lower allowable limit for k (default: SMALL) More...
const dimensionedScalar &	epsilonMin () const
	Return the lower allowable limit for epsilon (default: SMALL) More...
const dimensionedScalar &	omegaMin () const
	Return the lower allowable limit for omega (default: SMALL) More...
dimensionedScalar &	kMin ()
	Allow kMin to be changed. More...
dimensionedScalar &	epsilonMin ()
	Allow epsilonMin to be changed. More...
dimensionedScalar &	omegaMin ()
	Allow omegaMin to be changed. More...
virtual const dictionary &	coeffDict () const
	Const access to the coefficients dictionary. 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
virtual void	correctNut ()
	Update the eddy-viscosity. More...
Protected Member Functions inherited from ReynoldsStress< RASModel< BasicTurbulenceModel > >
void	boundNormalStress (volSymmTensorField &R) const
void	correctWallShearStress (volSymmTensorField &R) const
tmp< fvVectorMatrix >	DivDevRhoReff (const RhoFieldType &rho, volVectorField &U) const
	Return the source term for the momentum equation. More...
Protected Member Functions inherited from RASModel< BasicTurbulenceModel >
virtual void	printCoeffs (const word &type)
	Print model coefficients. More...

Protected Attributes
dimensionedScalar	Cmu_
dimensionedScalar	C1_
dimensionedScalar	C2_
dimensionedScalar	Ceps1_
dimensionedScalar	Ceps2_
dimensionedScalar	Cs_
dimensionedScalar	Ceps_
Switch	wallReflection_
dimensionedScalar	kappa_
dimensionedScalar	Cref1_
dimensionedScalar	Cref2_
volScalarField	k_
volScalarField	epsilon_
Protected Attributes inherited from ReynoldsStress< RASModel< BasicTurbulenceModel > >
dimensionedScalar	couplingFactor_
volSymmTensorField	R_
volScalarField	nut_
Protected Attributes inherited from RASModel< BasicTurbulenceModel >
dictionary	RASDict_
	RAS 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	epsilonMin_
	Lower limit of epsilon. More...
dimensionedScalar	omegaMin_
	Lower limit for omega. More...

Additional Inherited Members
Static Public Member Functions inherited from RASModel< BasicTurbulenceModel >
static autoPtr< RASModel >	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 RAS model. More...

Detailed Description

template<class BasicTurbulenceModel>
class Foam::RASModels::LRR< BasicTurbulenceModel >

Launder, Reece and Rodi Reynolds-stress turbulence model for incompressible and compressible flows.

Reference:

    Launder, B. E., Reece, G. J., & Rodi, W. (1975).
    Progress in the development of a Reynolds-stress turbulence closure.
    Journal of fluid mechanics, 68(03), 537-566.

Including the recommended generalized gradient diffusion model of Daly and Harlow:

    Daly, B. J., & Harlow, F. H. (1970).
    Transport equations in turbulence.
    Physics of Fluids (1958-1988), 13(11), 2634-2649.

Optional Gibson-Launder wall-reflection is also provided:

    Gibson, M. M., & Launder, B. E. (1978).
    Ground effects on pressure fluctuations in the
    atmospheric boundary layer.
    Journal of Fluid Mechanics, 86(03), 491-511.

The default model coefficients are:

    LRRCoeffs
    {
        Cmu             0.09;
        C1              1.8;
        C2              0.6;
        Ceps1           1.44;
        Ceps2           1.92;
        Cs              0.25;
        Ceps            0.15;

        wallReflection  yes;
        kappa           0.41
        Cref1           0.5;
        Cref2           0.3;

        couplingFactor  0.0;
    }

Source files

• LRR.H
• LRR.C

Definition at line 100 of file LRR.H.

Member Typedef Documentation

alphaField

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 150 of file LRR.H.

rhoField

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 151 of file LRR.H.

transportModel

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 152 of file LRR.H.

Constructor & Destructor Documentation

LRR()

LRR	(	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 54 of file LRR.C.

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

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~LRR()

virtual ~LRR ( )

inlinevirtual

Destructor.

Definition at line 176 of file LRR.H.

References LRR< BasicTurbulenceModel >::read().

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Member Function Documentation

correctNut()

void correctNut ( )

protectedvirtual

Update the eddy-viscosity.

Implements ReynoldsStress< RASModel< BasicTurbulenceModel > >.

Definition at line 40 of file LRR.C.

References optionList::correct(), options::New(), and Foam::sqr().

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TypeName()

TypeName

(

"LRR< BasicTurbulenceModel >"

)

Runtime type information.

read()

bool read ( )

virtual

Read model coefficients if they have changed.

Implements ReynoldsStress< RASModel< BasicTurbulenceModel > >.

Definition at line 217 of file LRR.C.

References Foam::read().

Referenced by LRR< BasicTurbulenceModel >::~LRR().

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k()

virtual tmp<volScalarField> k ( ) const

inlinevirtual

Return the turbulence kinetic energy.

Reimplemented from ReynoldsStress< RASModel< BasicTurbulenceModel > >.

Definition at line 186 of file LRR.H.

References LRR< BasicTurbulenceModel >::k_.

epsilon()

virtual tmp<volScalarField> epsilon ( ) const

inlinevirtual

Return the turbulence kinetic energy dissipation rate.

Definition at line 192 of file LRR.H.

References LRR< BasicTurbulenceModel >::correct(), LRR< BasicTurbulenceModel >::DepsilonEff(), LRR< BasicTurbulenceModel >::DREff(), and LRR< BasicTurbulenceModel >::epsilon_.

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DREff()

tmp< volSymmTensorField > DREff

(

)

const

Return the effective diffusivity for R.

Definition at line 244 of file LRR.C.

References Foam::I, and nu.

Referenced by LRR< BasicTurbulenceModel >::epsilon().

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DepsilonEff()

tmp< volSymmTensorField > DepsilonEff

(

)

const

Return the effective diffusivity for epsilon.

Definition at line 258 of file LRR.C.

References Foam::I, and nu.

Referenced by LRR< BasicTurbulenceModel >::epsilon().

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correct()

void correct ( )

virtual

Solve the turbulence equations and correct eddy-Viscosity and.

related properties

Implements ReynoldsStress< RASModel< BasicTurbulenceModel > >.

Definition at line 272 of file LRR.C.

References Foam::bound(), optionList::constrain(), correct, optionList::correct(), Foam::fvm::ddt(), Foam::dev(), Foam::fvm::div(), fvPatch::faceCells(), forAll, fvOptions, Foam::constant::universal::G, Foam::fvc::grad(), Foam::I, Foam::fvm::laplacian(), Foam::mag(), Foam::min(), n, options::New(), MeshObject< fvMesh, UpdateableMeshObject, wallDist >::New(), patches, patchi, Foam::pow(), R, tmp< T >::ref(), Foam::solve(), Foam::fvm::Sp(), Foam::sqrt(), Foam::symm(), Foam::tr(), Foam::twoSymm(), and y.

Referenced by LRR< BasicTurbulenceModel >::epsilon().

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Member Data Documentation

Cmu_

dimensionedScalar Cmu_

protected

Definition at line 117 of file LRR.H.

C1_

dimensionedScalar C1_

protected

Definition at line 119 of file LRR.H.

C2_

dimensionedScalar C2_

protected

Definition at line 120 of file LRR.H.

Ceps1_

dimensionedScalar Ceps1_

protected

Definition at line 122 of file LRR.H.

Ceps2_

dimensionedScalar Ceps2_

protected

Definition at line 123 of file LRR.H.

Cs_

dimensionedScalar Cs_

protected

Definition at line 124 of file LRR.H.

Ceps_

dimensionedScalar Ceps_

protected

Definition at line 125 of file LRR.H.

wallReflection_

Switch wallReflection_

protected

Definition at line 130 of file LRR.H.

kappa_

dimensionedScalar kappa_

protected

Definition at line 131 of file LRR.H.

Cref1_

dimensionedScalar Cref1_

protected

Definition at line 132 of file LRR.H.

Cref2_

dimensionedScalar Cref2_

protected

Definition at line 133 of file LRR.H.

k_

volScalarField k_

protected

Definition at line 138 of file LRR.H.

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

epsilon_

volScalarField epsilon_

protected

Definition at line 139 of file LRR.H.

Referenced by LRR< BasicTurbulenceModel >::epsilon().

---

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

• src/TurbulenceModels/turbulenceModels/RAS/LRR/LRR.H
• src/TurbulenceModels/turbulenceModels/RAS/LRR/LRR.C