Thixotropic viscosity momentum transport model based on the evolution of the structural parameter : More...
Public Types | |
typedef BasicMomentumTransportModel::alphaField | alphaField |
typedef BasicMomentumTransportModel::rhoField | rhoField |
typedef BasicMomentumTransportModel::transportModel | transportModel |
Public Types inherited from linearViscousStress< laminarModel< BasicMomentumTransportModel > > | |
typedef laminarModel< BasicMomentumTransportModel > ::alphaField | alphaField |
typedef laminarModel< BasicMomentumTransportModel > ::rhoField | rhoField |
typedef laminarModel< BasicMomentumTransportModel > ::transportModel | transportModel |
Public Types inherited from laminarModel< BasicMomentumTransportModel > | |
typedef BasicMomentumTransportModel::alphaField | alphaField |
typedef BasicMomentumTransportModel::rhoField | rhoField |
typedef BasicMomentumTransportModel::transportModel | transportModel |
Public Member Functions | |
TypeName ("lambdaThixotropic") | |
Runtime type information. More... | |
lambdaThixotropic (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport) | |
Construct from components. More... | |
virtual | ~lambdaThixotropic () |
Destructor. More... | |
virtual bool | read () |
Read momentumTransport 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 void | correct () |
Correct the lambdaThixotropic viscosity. More... | |
Public Member Functions inherited from linearViscousStress< laminarModel< BasicMomentumTransportModel > > | |
linearViscousStress (const word &modelName, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport) | |
Construct from components. More... | |
virtual | ~linearViscousStress () |
Destructor. More... | |
virtual tmp< volSymmTensorField > | devTau () const |
Return the effective stress tensor. More... | |
virtual tmp< fvVectorMatrix > | divDevTau (volVectorField &U) const |
Return the source term for the momentum equation. More... | |
virtual tmp< fvVectorMatrix > | divDevTau (const volScalarField &rho, volVectorField &U) const |
Return the source term for the momentum equation. More... | |
Public Member Functions inherited from laminarModel< BasicMomentumTransportModel > | |
TypeName ("laminar") | |
Runtime type information. More... | |
declareRunTimeSelectionTable (autoPtr, laminarModel, dictionary,(const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport),(alpha, rho, U, alphaRhoPhi, phi, transport)) | |
laminarModel (const word &type, const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport) | |
Construct from components. More... | |
laminarModel (const laminarModel &)=delete | |
Disallow default bitwise copy construction. More... | |
virtual | ~laminarModel () |
Destructor. More... | |
virtual const dictionary & | coeffDict () const |
Const access to the coefficients dictionary. More... | |
virtual tmp< volScalarField > | nut () const |
Return the turbulence viscosity, i.e. 0 for laminar flow. 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, i.e. 0 for laminar flow. More... | |
virtual tmp< volScalarField > | epsilon () const |
Return the turbulence kinetic energy dissipation rate,. More... | |
virtual tmp< volSymmTensorField > | sigma () const |
Return the stress tensor [m^2/s^2], i.e. 0 for laminar flow. More... | |
void | operator= (const laminarModel &)=delete |
Disallow default bitwise assignment. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from laminarModel< BasicMomentumTransportModel > | |
static autoPtr< laminarModel > | New (const alphaField &alpha, const rhoField &rho, const volVectorField &U, const surfaceScalarField &alphaRhoPhi, const surfaceScalarField &phi, const transportModel &transport) |
Return a reference to the selected laminar model. More... | |
Protected Member Functions inherited from laminarModel< BasicMomentumTransportModel > | |
virtual void | printCoeffs (const word &type) |
Print model coefficients. More... | |
Protected Attributes inherited from laminarModel< BasicMomentumTransportModel > | |
dictionary | laminarDict_ |
laminar coefficients dictionary More... | |
Switch | printCoeffs_ |
Flag to print the model coeffs at run-time. More... | |
dictionary | coeffDict_ |
Model coefficients dictionary. More... | |
Thixotropic viscosity momentum transport model based on the evolution of the structural parameter :
The viscosity is then calculated using the expression
Where the parameter K is given by:
Here:
= | structural parameter | |
= | model coefficient | |
= | model coefficient | |
= | model coefficient | |
= | model coefficient | |
= | stress rate [1/s] | |
= | limiting viscosity when | |
= | limiting viscosity when |
Reference:
Barnes H A, 1997. Thixotropy - a review. J. Non-Newtonian Fluid Mech 70, pp 1-33
Definition at line 119 of file lambdaThixotropic.H.
typedef BasicMomentumTransportModel::alphaField alphaField |
Definition at line 166 of file lambdaThixotropic.H.
typedef BasicMomentumTransportModel::rhoField rhoField |
Definition at line 167 of file lambdaThixotropic.H.
typedef BasicMomentumTransportModel::transportModel transportModel |
Definition at line 168 of file lambdaThixotropic.H.
lambdaThixotropic | ( | const alphaField & | alpha, |
const rhoField & | rho, | ||
const volVectorField & | U, | ||
const surfaceScalarField & | alphaRhoPhi, | ||
const surfaceScalarField & | phi, | ||
const transportModel & | transport | ||
) |
Construct from components.
Definition at line 42 of file lambdaThixotropic.C.
References Foam::fvc::grad(), Foam::mag(), Foam::sqr(), Foam::sqrt(), Foam::symm(), and U.
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inlinevirtual |
Destructor.
Definition at line 190 of file lambdaThixotropic.H.
References lambdaThixotropic< BasicMomentumTransportModel >::correct(), lambdaThixotropic< BasicMomentumTransportModel >::nuEff(), patchi, and lambdaThixotropic< BasicMomentumTransportModel >::read().
TypeName | ( | "lambdaThixotropic< BasicMomentumTransportModel >" | ) |
Runtime type information.
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virtual |
Read momentumTransport dictionary.
Implements linearViscousStress< laminarModel< BasicMomentumTransportModel > >.
Definition at line 127 of file lambdaThixotropic.C.
References Foam::dimTime, Foam::pow(), and Foam::sqrt().
Referenced by lambdaThixotropic< BasicMomentumTransportModel >::~lambdaThixotropic().
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virtual |
Return the effective viscosity.
i.e. the lambdaThixotropic viscosity
Implements laminarModel< BasicMomentumTransportModel >.
Definition at line 158 of file lambdaThixotropic.C.
References IOobject::groupName(), and GeometricField< scalar, fvPatchField, volMesh >::New().
Referenced by lambdaThixotropic< BasicMomentumTransportModel >::~lambdaThixotropic().
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virtual |
Return the effective viscosity on patch.
Implements laminarModel< BasicMomentumTransportModel >.
Definition at line 171 of file lambdaThixotropic.C.
References patchi.
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virtual |
Correct the lambdaThixotropic viscosity.
Implements linearViscousStress< laminarModel< BasicMomentumTransportModel > >.
Definition at line 180 of file lambdaThixotropic.C.
References fvConstraints::constrain(), laminarModel< BasicMomentumTransportModel >::correct(), Foam::fvm::ddt(), Foam::fvm::div(), Foam::fvc::div(), fvConstraints, fvModels, dictionary::New(), Foam::pow(), tmp< T >::ref(), Foam::solve(), and Foam::fvm::Sp().
Referenced by lambdaThixotropic< BasicMomentumTransportModel >::~lambdaThixotropic().