Dynamic one equation eddy-viscosity model. More...
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 LESModel< BasicTurbulenceModel > ::alphaField | alphaField |
typedef LESModel< BasicTurbulenceModel > ::rhoField | rhoField |
typedef LESModel< BasicTurbulenceModel > ::transportModel | transportModel |
Public Types inherited from linearViscousStress< LESModel< BasicTurbulenceModel > > | |
typedef LESModel< BasicTurbulenceModel > ::alphaField | alphaField |
typedef LESModel< BasicTurbulenceModel > ::rhoField | rhoField |
typedef LESModel< BasicTurbulenceModel > ::transportModel | transportModel |
Public Types inherited from LESModel< 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... | |
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 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 void | validate () |
Validate the turbulence fields after construction. More... | |
Public Member Functions inherited from linearViscousStress< LESModel< 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 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... | |
Public Member Functions inherited from LESModel< BasicTurbulenceModel > | |
TypeName ("LES") | |
Runtime type information. More... | |
declareRunTimeSelectionTable (autoPtr, LESModel, 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)) | |
LESModel (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 | ~LESModel ()=default |
Destructor. More... | |
virtual const dictionary & | coeffDict () const |
Const access to the coefficients dictionary. More... | |
const dimensionedScalar & | Ce () const noexcept |
const dimensionedScalar & | kMin () const |
Return the lower allowable limit for k (default: SMALL) More... | |
dimensionedScalar & | kMin () |
Allow kMin to be changed. More... | |
const volScalarField & | delta () const |
Access function to filter width. 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... | |
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 |
Protected Member Functions inherited from LESModel< BasicTurbulenceModel > | |
virtual void | printCoeffs (const word &type) |
Print model coefficients. More... | |
LESModel (const LESModel &)=delete | |
No copy construct. More... | |
void | operator= (const LESModel &)=delete |
No copy assignment. More... | |
Protected Attributes | |
volScalarField | k_ |
simpleFilter | simpleFilter_ |
autoPtr< LESfilter > | filterPtr_ |
LESfilter & | filter_ |
Protected Attributes inherited from eddyViscosity< LESModel< BasicTurbulenceModel > > | |
volScalarField | nut_ |
Protected Attributes inherited from LESModel< BasicTurbulenceModel > | |
dictionary | LESDict_ |
LES 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 | Ce_ |
Empirical model constant. More... | |
dimensionedScalar | kMin_ |
Lower limit of k. More... | |
dimensionedScalar | epsilonMin_ |
Lower limit of epsilon. More... | |
dimensionedScalar | omegaMin_ |
Lower limit for omega. More... | |
autoPtr< Foam::LESdelta > | delta_ |
Run-time selectable delta model. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from LESModel< BasicTurbulenceModel > | |
static autoPtr< LESModel > | 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 LES model. More... | |
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; }
Definition at line 75 of file dynamicKEqn.H.
typedef BasicTurbulenceModel::alphaField alphaField |
Definition at line 146 of file dynamicKEqn.H.
typedef BasicTurbulenceModel::rhoField rhoField |
Definition at line 147 of file dynamicKEqn.H.
typedef BasicTurbulenceModel::transportModel transportModel |
Definition at line 148 of file dynamicKEqn.H.
dynamicKEqn | ( | const alphaField & | alpha, |
const rhoField & | rho, | ||
const volVectorField & | U, | ||
const surfaceScalarField & | alphaRhoPhi, | ||
const surfaceScalarField & | phi, | ||
const transportModel & | transport, | ||
const word & | propertiesName = turbulenceModel::propertiesName , |
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const word & | type = typeName |
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) |
Construct from components.
Definition at line 150 of file dynamicKEqn.C.
References Foam::bound(), and Foam::type().
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virtualdefault |
Destructor.
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protected |
Calculate Ck by filtering the velocity field U.
Definition at line 36 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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protected |
Calculate Ce by filtering the velocity field U.
Definition at line 73 of file dynamicKEqn.C.
References D, delta, Foam::mag(), Foam::magSqr(), and Foam::pow().
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protected |
Definition at line 90 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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protected |
Update sub-grid eddy-viscosity.
Definition at line 106 of file dynamicKEqn.C.
References optionList::correct(), D, delta, options::New(), and Foam::sqrt().
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protectedvirtual |
Implements eddyViscosity< LESModel< BasicTurbulenceModel > >.
Definition at line 120 of file dynamicKEqn.C.
References Foam::fvc::grad(), Foam::magSqr(), and Foam::symm().
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protectedvirtual |
Definition at line 132 of file dynamicKEqn.C.
References Foam::dimTime, and Foam::dimVolume.
TypeName | ( | "dynamicKEqn< BasicTurbulenceModel >" | ) |
Runtime type information.
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virtual |
Read model coefficients if they have changed.
Reimplemented from LESeddyViscosity< BasicTurbulenceModel >.
Definition at line 202 of file dynamicKEqn.C.
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inlinevirtual |
Return SGS kinetic energy.
Implements eddyViscosity< LESModel< BasicTurbulenceModel > >.
Definition at line 191 of file dynamicKEqn.H.
References dynamicKEqn< BasicTurbulenceModel >::k_.
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inline |
Return the effective diffusivity for k.
Definition at line 199 of file dynamicKEqn.H.
References nu, and eddyViscosity< LESModel< BasicTurbulenceModel > >::nut_.
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virtual |
Correct Eddy-Viscosity and related properties.
Implements eddyViscosity< LESModel< BasicTurbulenceModel > >.
Definition at line 216 of file dynamicKEqn.C.
References Foam::fvc::absolute(), Foam::constant::atomic::alpha, Foam::bound(), tmp< T >::clear(), eddyViscosity< LESModel< BasicTurbulenceModel > >::correct(), D, Foam::fvm::ddt(), delta, Foam::dev(), DimensionedField< Type, GeoMesh >::dimensions(), Foam::fvm::div(), Foam::fvc::div(), divU, fvOptions, Foam::constant::universal::G, Foam::fvc::grad(), Foam::fvm::laplacian(), Foam::magSqr(), GeometricField< Type, PatchField, GeoMesh >::max(), options::New(), nut, phi, rho, Foam::solve(), Foam::fvm::Sp(), Foam::sqrt(), Foam::fvm::SuSp(), Foam::symm(), and U.
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protected |
Definition at line 98 of file dynamicKEqn.H.
Referenced by dynamicKEqn< BasicTurbulenceModel >::k().
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protected |
Definition at line 103 of file dynamicKEqn.H.
Definition at line 104 of file dynamicKEqn.H.
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protected |
Definition at line 105 of file dynamicKEqn.H.
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