#include <Smagorinsky.H>

Inheritance diagram for Smagorinsky< BasicTurbulenceModel >:

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Collaboration diagram for Smagorinsky< BasicTurbulenceModel >:

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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 ("Smagorinsky")
	Runtime type information.
	Smagorinsky (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.
virtual	~Smagorinsky ()=default
	Destructor.
virtual bool	read ()
	Read model coefficients if they have changed.
virtual tmp< volScalarField >	k () const
	Return SGS kinetic energy.
virtual void	correct ()
	Correct Eddy-Viscosity and related properties.
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.
virtual	~LESeddyViscosity ()=default
	Destructor.
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.
virtual	~eddyViscosity ()=default
	Destructor.
virtual tmp< volScalarField >	nut () const
	Return the turbulence viscosity.
virtual tmp< volSymmTensorField >	R () const
	Return the Reynolds stress tensor.
virtual void	validate ()
	Validate the turbulence fields after construction.
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.
virtual	~linearViscousStress ()=default
	Destructor.
virtual tmp< volSymmTensorField >	devRhoReff () const
	Return the effective stress tensor.
virtual tmp< volSymmTensorField >	devRhoReff (const volVectorField &U) const
	Return the effective stress tensor based on a given velocity field.
virtual tmp< fvVectorMatrix >	divDevRhoReff (volVectorField &U) const
	Return the source term for the momentum equation.
virtual tmp< fvVectorMatrix >	divDevRhoReff (const volScalarField &rho, volVectorField &U) const
	Return the source term for the momentum equation.

Protected Member Functions
tmp< volScalarField >	k (const tmp< volTensorField > &gradU) const
	Return SGS kinetic energy.
virtual void	correctNut ()
	Update the SGS eddy viscosity.

Protected Attributes
dimensionedScalar	Ck_
Protected Attributes inherited from eddyViscosity< LESModel< BasicTurbulenceModel > >
volScalarField	nut_

Detailed Description

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

The Smagorinsky SGS model.

Reference:

    Smagorinsky, J. (1963).
    General circulation experiments with the primitive equations: I.
    The basic experiment*.
    Monthly weather review, 91(3), 99-164.

The form of the Smagorinsky model implemented is obtained from the k-equation model assuming local equilibrium which provides estimates of both k and epsilon separate from the sub-grid scale viscosity:

    B = 2/3*k*I - 2*nuSgs*dev(D)

where

    D = symm(grad(U));
    k from D:B + Ce*k^3/2/delta = 0
    nuSgs = Ck*sqrt(k)*delta

The default model coefficients are

    SmagorinskyCoeffs
    {
        Ck                  0.094;
        Ce                  1.048;
    }

See also: Foam::LESModels::kEqn

Source files

Definition at line 88 of file Smagorinsky.H.

Member Typedef Documentation

◆ alphaField

template<class BasicTurbulenceModel>

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 129 of file Smagorinsky.H.

◆ rhoField

template<class BasicTurbulenceModel>

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 130 of file Smagorinsky.H.

◆ transportModel

template<class BasicTurbulenceModel>

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 131 of file Smagorinsky.H.

Constructor & Destructor Documentation

◆ Smagorinsky()

template<class BasicTurbulenceModel>

Smagorinsky	(	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 )