Maxwell model for viscoelasticity using the upper-convected time derivative of the stress tensor. See http://en.wikipedia.org/wiki/Upper-convected_Maxwell_model. More...
Public Types | |
typedef BasicTurbulenceModel::alphaField | alphaField |
typedef BasicTurbulenceModel::rhoField | rhoField |
typedef BasicTurbulenceModel::transportModel | transportModel |
Public Types inherited from laminarModel< BasicTurbulenceModel > | |
typedef BasicTurbulenceModel::alphaField | alphaField |
typedef BasicTurbulenceModel::rhoField | rhoField |
typedef BasicTurbulenceModel::transportModel | transportModel |
Public Member Functions | |
TypeName ("Maxwell") | |
Runtime type information. More... | |
Maxwell (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 | ~Maxwell ()=default |
Destructor. More... | |
virtual bool | read () |
Read model coefficients if they have changed. 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 | correct () |
Solve the turbulence equations and correct eddy-Viscosity and related properties. More... | |
Public Member Functions inherited from laminarModel< BasicTurbulenceModel > | |
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, const word &propertiesName),(alpha, rho, U, alphaRhoPhi, phi, transport, propertiesName)) | |
laminarModel (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 | ~laminarModel ()=default |
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 > | nuEff () const |
Return the effective viscosity, i.e. the laminar viscosity. More... | |
virtual tmp< scalarField > | nuEff (const label patchi) const |
Return the effective 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< volScalarField > | omega () const |
Return the specific dissipation rate, i.e. 0 for laminar flow. More... | |
Protected Member Functions | |
tmp< volScalarField > | nu0 () const |
Return the turbulence viscosity. More... | |
Protected Member Functions inherited from laminarModel< BasicTurbulenceModel > | |
virtual void | printCoeffs (const word &type) |
Print model coefficients. More... | |
laminarModel (const laminarModel &)=delete | |
No copy construct. More... | |
void | operator= (const laminarModel &)=delete |
No copy assignment. More... | |
Protected Attributes | |
dimensionedScalar | nuM_ |
dimensionedScalar | lambda_ |
volSymmTensorField | sigma_ |
Protected Attributes inherited from laminarModel< BasicTurbulenceModel > | |
dictionary | laminarDict_ |
laminar coefficients dictionary More... | |
Switch | printCoeffs_ |
Flag to print the model coeffs at run-time. More... | |
dictionary | coeffDict_ |
Model coefficients dictionary. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from laminarModel< BasicTurbulenceModel > | |
static autoPtr< laminarModel > | 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 laminar model. More... | |
Maxwell model for viscoelasticity using the upper-convected time derivative of the stress tensor. See http://en.wikipedia.org/wiki/Upper-convected_Maxwell_model.
The model includes an additional viscosity (nu) from the transport model from which it is instantiated, which makes it equivalent to the Oldroyd-B model for the case of an incompressible transport model (where nu is non-zero). See https://en.wikipedia.org/wiki/Oldroyd-B_model
Reference:
Amoreira, L. J., & Oliveira, P. J. (2010). Comparison of different formulations for the numerical calculation of unsteady incompressible viscoelastic fluid flow. Adv. Appl. Math. Mech, 4, 483-502. DOI:10.4208/aamm.10-m1010
typedef BasicTurbulenceModel::alphaField alphaField |
typedef BasicTurbulenceModel::transportModel transportModel |
Maxwell | ( | 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 37 of file Maxwell.C.
References Foam::type().
|
virtualdefault |
Destructor.
|
inlineprotected |
Return the turbulence viscosity.
Definition at line 95 of file Maxwell.H.
References nu, and Maxwell< BasicTurbulenceModel >::nuM_.
TypeName | ( | "Maxwell< BasicTurbulenceModel >" | ) |
Runtime type information.
|
virtual |
Read model coefficients if they have changed.
Reimplemented from laminarModel< BasicTurbulenceModel >.
|
virtual |
Return the Reynolds stress tensor.
Reimplemented from laminarModel< BasicTurbulenceModel >.
|
virtual |
|
virtual |
Return the effective stress tensor based on a given velocity field.
Definition at line 119 of file Maxwell.C.
References Foam::devTwoSymm(), Foam::fvc::grad(), IOobject::groupName(), IOobjectOption::NO_READ, IOobjectOption::NO_WRITE, and nu.
|
virtual |
Return the source term for the momentum equation.
Definition at line 144 of file Maxwell.C.
References Foam::dev2(), Foam::fvc::div(), Foam::fvc::grad(), Foam::fvm::laplacian(), nu, Foam::T(), and U.
|
virtual |
Return the source term for the momentum equation.
Definition at line 164 of file Maxwell.C.
References Foam::dev2(), Foam::fvc::div(), Foam::fvc::grad(), Foam::fvm::laplacian(), nu, rho, Foam::T(), and U.
|
virtual |
Solve the turbulence equations and correct eddy-Viscosity and related properties.
Reimplemented from laminarModel< BasicTurbulenceModel >.
Definition at line 183 of file Maxwell.C.
References Foam::constant::atomic::alpha, laminarModel< BasicTurbulenceModel >::correct(), Foam::fvm::ddt(), Foam::fvm::div(), fvOptions, Foam::fvc::grad(), IOobject::groupName(), options::New(), tmp< T >::ref(), rho, sigma(), Foam::solve(), Foam::fvm::Sp(), Foam::twoSymm(), and U.
|
protected |
Definition at line 81 of file Maxwell.H.
Referenced by Maxwell< BasicTurbulenceModel >::nu0().
|
protected |
|
protected |