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 BasicTurbulenceModel::alphaField	alphaField
typedef BasicTurbulenceModel::rhoField	rhoField
typedef 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 ()=default
	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 ()=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
	Return the turbulence kinetic energy. 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< 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	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 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 ()=default
	Destructor. More...
virtual bool	read ()
	Read model coefficients if they have changed. 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...
virtual tmp< volScalarField >	epsilon () const
	Return the turbulence kinetic energy dissipation rate. More...
virtual tmp< volScalarField >	omega () const
	Return the specific dissipation rate. More...
virtual void	correct ()
	Solve the turbulence equations and correct the turbulence viscosity. 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
void	checkRealizabilityConditions (const volSymmTensorField &R) const
virtual void	correctNut ()=0
	Update the eddy-viscosity. More...
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...
	RASModel (const RASModel &)=delete
	No copy construct. More...
void	operator= (const RASModel &)=delete
	No copy assignment. 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 103 of file LRR.H.

Member Typedef Documentation

alphaField

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 155 of file LRR.H.

rhoField

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 156 of file LRR.H.

transportModel

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 157 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 56 of file LRR.C.

References Foam::bound(), ReynoldsStress< RASModel< BasicTurbulenceModel > >::boundNormalStress(), LRR< BasicTurbulenceModel >::epsilon_, RASModel< BasicTurbulenceModel >::epsilonMin_, LRR< BasicTurbulenceModel >::k_, RASModel< BasicTurbulenceModel >::printCoeffs(), ReynoldsStress< RASModel< BasicTurbulenceModel > >::R_, Foam::tr(), and Foam::type().

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~LRR()

virtual ~LRR ( )

virtualdefault

Destructor.

Member Function Documentation

correctNut()

void correctNut

protectedvirtual

Update the eddy-viscosity.

Implements ReynoldsStress< RASModel< BasicTurbulenceModel > >.

Definition at line 43 of file LRR.C.

References Time::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 220 of file LRR.C.

References Foam::read().

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k()

virtual tmp< volScalarField > k ( ) const

inlinevirtual

Return the turbulence kinetic energy.

Reimplemented from ReynoldsStress< RASModel< BasicTurbulenceModel > >.

Definition at line 190 of file LRR.H.

References LRR< BasicTurbulenceModel >::k_.

epsilon()

virtual tmp< volScalarField > epsilon ( ) const

inlinevirtual

Return the turbulence kinetic energy dissipation rate.

Reimplemented from RASModel< BasicTurbulenceModel >.

Definition at line 196 of file LRR.H.

References LRR< BasicTurbulenceModel >::epsilon_.

DREff()

tmp< volSymmTensorField > DREff

Return the effective diffusivity for R.

Definition at line 245 of file LRR.C.

References Foam::I, and nu.

DepsilonEff()

tmp< volSymmTensorField > DepsilonEff

Return the effective diffusivity for epsilon.

Definition at line 259 of file LRR.C.

References Foam::I, and nu.

correct()

void correct

virtual

Solve the turbulence equations and correct eddy-Viscosity and.

related properties

Implements ReynoldsStress< RASModel< BasicTurbulenceModel > >.

Definition at line 273 of file LRR.C.

References alpha, Foam::bound(), correct(), Foam::fvm::ddt(), Foam::dev(), Foam::fvm::div(), fvPatch::faceCells(), forAll, fvOptions, Foam::fvc::grad(), Foam::I, Foam::fvm::laplacian(), Foam::mag(), Foam::min(), n, Time::New(), patches, Foam::pow(), R, tmp< T >::ref(), rho, solve(), Foam::fvm::Sp(), Foam::sqrt(), Foam::symm(), Foam::tr(), Foam::twoSymm(), U, and y.

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Member Data Documentation

Cmu_

dimensionedScalar Cmu_

protected

Definition at line 122 of file LRR.H.

C1_

dimensionedScalar C1_

protected

Definition at line 124 of file LRR.H.

C2_

dimensionedScalar C2_

protected

Definition at line 125 of file LRR.H.

Ceps1_

dimensionedScalar Ceps1_

protected

Definition at line 127 of file LRR.H.

Ceps2_

dimensionedScalar Ceps2_

protected

Definition at line 128 of file LRR.H.

Cs_

dimensionedScalar Cs_

protected

Definition at line 129 of file LRR.H.

Ceps_

dimensionedScalar Ceps_

protected

Definition at line 130 of file LRR.H.

wallReflection_

Switch wallReflection_

protected

Definition at line 135 of file LRR.H.

kappa_

dimensionedScalar kappa_

protected

Definition at line 136 of file LRR.H.

Cref1_

dimensionedScalar Cref1_

protected

Definition at line 137 of file LRR.H.

Cref2_

dimensionedScalar Cref2_

protected

Definition at line 138 of file LRR.H.

k_

volScalarField k_

protected

Definition at line 143 of file LRR.H.

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

epsilon_

volScalarField epsilon_

protected

Definition at line 144 of file LRR.H.

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

---

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