LRR Class Reference

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

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List of all members.

Public Member Functions
	TypeName ("LRR")
	Runtime type information.
	LRR (const volScalarField &rho, const volVectorField &U, const surfaceScalarField &phi, const basicThermo &thermophysicalModel)
	Construct from components.
virtual	~LRR ()
	Destructor.
tmp< volScalarField >	DREff () const
	Return the effective diffusivity for R.
tmp< volScalarField >	DepsilonEff () const
	Return the effective diffusivity for epsilon.
virtual tmp< volScalarField >	mut () const
	Return the turbulence viscosity.
virtual tmp< volScalarField >	alphaEff () const
	Return the effective turbulent thermal diffusivity.
virtual tmp< volScalarField >	k () const
	Return the turbulence kinetic energy.
virtual tmp< volScalarField >	epsilon () const
	Return the turbulence kinetic energy dissipation rate.
virtual tmp< volSymmTensorField >	R () const
	Return the Reynolds stress tensor.
virtual tmp< volSymmTensorField >	devRhoReff () const
	Return the effective stress tensor including the laminar stress.
virtual tmp< fvVectorMatrix >	divDevRhoReff (volVectorField &U) const
	Return the source term for the momentum equation.
virtual void	correct ()
	Solve the turbulence equations and correct the turbulence viscosity.
virtual bool	read ()
	Read RASProperties dictionary.

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Detailed Description

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

The default model coefficients correspond to the following:

    LRRCoeffs
    {
        Cmu         0.09;
        Clrr1       1.8;
        Clrr2       0.6;
        C1          1.44;
        C2          1.92;
        Cs          0.25;
        Ceps        0.15;
        Prt         1.0;        // only for compressible
        sigmaEps    1.3;
        sigmaR      0.81967;    // only for compressible
        couplingFactor  0.0;    // only for incompressible
    }

Source files

• LRR.H
• LRR.C
• LRRcorrect.C

Definition at line 68 of file LRR.H.

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Constructor & Destructor Documentation

LRR	(	const volScalarField &	rho,
		const volVectorField &	U,
		const surfaceScalarField &	phi,
		const basicThermo &	thermophysicalModel
	)

Construct from components.

Definition at line 41 of file LRR.C.

virtual ~LRR

(

)

[inline, virtual]

Destructor.

Definition at line 120 of file LRR.H.

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Member Function Documentation

TypeName

(

"LRR"

)

Runtime type information.

tmp<volScalarField> DREff

(

)

const [inline]

Return the effective diffusivity for R.

Definition at line 127 of file LRR.H.

tmp<volScalarField> DepsilonEff

(

)

const [inline]

Return the effective diffusivity for epsilon.

Definition at line 136 of file LRR.H.

virtual tmp<volScalarField> mut

(

)

const [inline, virtual]

Return the turbulence viscosity.

Implements RASModel.

Definition at line 145 of file LRR.H.

Referenced by LRR::alphaEff().

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virtual tmp<volScalarField> alphaEff

(

)

const [inline, virtual]

Return the effective turbulent thermal diffusivity.

Implements RASModel.

Definition at line 151 of file LRR.H.

References LRR::mut().

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virtual tmp<volScalarField> k

(

)

const [inline, virtual]

Return the turbulence kinetic energy.

Implements RASModel.

Definition at line 160 of file LRR.H.

References turbulenceModel::alpha().

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virtual tmp<volScalarField> epsilon

(

)

const [inline, virtual]

Return the turbulence kinetic energy dissipation rate.

Implements RASModel.

Definition at line 166 of file LRR.H.

Referenced by LRR::R().

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virtual tmp<volSymmTensorField> R

(

)

const [inline, virtual]

Return the Reynolds stress tensor.

Implements RASModel.

Definition at line 172 of file LRR.H.

References LRR::epsilon().

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tmp< volSymmTensorField > devRhoReff

(

)

const [virtual]

Return the effective stress tensor including the laminar stress.

Implements RASModel.

Definition at line 235 of file LRR.C.

References RASModel::printCoeffs().

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tmp< fvVectorMatrix > divDevRhoReff

(

volVectorField &

U

)

const [virtual]

Return the source term for the momentum equation.

Implements RASModel.

Definition at line 255 of file LRR.C.

void correct

(

)

[virtual]

Solve the turbulence equations and correct the turbulence viscosity.

fvm::laplacian(Ceps*rho_*(k_/epsilon_)*R_, epsilon_)

fvm::laplacian(Cs*rho_*(k_/epsilon_)*R_, R_)

Implements RASModel.

Definition at line 313 of file LRR.C.

bool read

(

)

[virtual]

Read RASProperties dictionary.

Implements RASModel.

Definition at line 280 of file LRR.C.

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

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