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...

Inheritance diagram for Maxwell< BasicTurbulenceModel >:

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Collaboration diagram for Maxwell< BasicTurbulenceModel >:

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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 ()

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 bool	read ()
	Read model coefficients if they have changed. 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...

virtual tmp< volSymmTensorField >	R () const
	Return the Reynolds stress tensor, i.e. 0 for laminar flow. More...

virtual void	correct ()
	Correct the laminar transport. 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...

Detailed Description

template<class BasicTurbulenceModel>
class Foam::laminarModels::Maxwell< BasicTurbulenceModel >

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

Source files

Definition at line 74 of file Maxwell.H.

Member Typedef Documentation

◆ alphaField

typedef BasicTurbulenceModel::alphaField alphaField

Definition at line 105 of file Maxwell.H.

◆ rhoField

typedef BasicTurbulenceModel::rhoField rhoField

Definition at line 106 of file Maxwell.H.

◆ transportModel

typedef BasicTurbulenceModel::transportModel transportModel

Definition at line 107 of file Maxwell.H.

Constructor & Destructor Documentation

◆ Maxwell()

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 43 of file Maxwell.C.

References laminarModel< BasicTurbulenceModel >::printCoeffs(), and Foam::type().

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◆ ~Maxwell()

virtual ~Maxwell ( )

virtualdefault

Destructor.

Member Function Documentation

◆ nu0()

tmp< volScalarField > nu0 ( ) const

inlineprotected

Return the turbulence viscosity.

Definition at line 97 of file Maxwell.H.

References nu, and Maxwell< BasicTurbulenceModel >::nuM_.

◆ TypeName()

TypeName ( "Maxwell< BasicTurbulenceModel >" )

Runtime type information.

◆ read()

bool read

virtual

Read model coefficients if they have changed.

Reimplemented from laminarModel< BasicTurbulenceModel >.

Definition at line 94 of file Maxwell.C.

◆ R()

tmp< Foam::volSymmTensorField > R

virtual

Return the Reynolds stress tensor.

Reimplemented from laminarModel< BasicTurbulenceModel >.

Definition at line 110 of file Maxwell.C.

◆ devRhoReff() [1/2]

tmp< Foam::volSymmTensorField > devRhoReff

virtual

Return the effective stress tensor.

Definition at line 118 of file Maxwell.C.

◆ devRhoReff() [2/2]

tmp< Foam::volSymmTensorField > devRhoReff ( const volVectorField & U ) const

virtual

Return the effective stress tensor based on a given velocity field.

Definition at line 126 of file Maxwell.C.

References Foam::dev(), Foam::fvc::grad(), IOobject::groupName(), IOobject::NO_READ, IOobject::NO_WRITE, Foam::twoSymm(), and U.

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◆ divDevRhoReff() [1/2]

tmp< Foam::fvVectorMatrix > divDevRhoReff ( volVectorField & U ) const

virtual

Return the source term for the momentum equation.

Definition at line 150 of file Maxwell.C.

References Foam::dev2(), Foam::fvc::div(), Foam::fvc::grad(), Foam::fvm::laplacian(), nu, T, and U.

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◆ divDevRhoReff() [2/2]

tmp< Foam::fvVectorMatrix > divDevRhoReff	(	const volScalarField &	rho,
		volVectorField &	U
	)		const

virtual

Return the source term for the momentum equation.

Definition at line 170 of file Maxwell.C.

References Foam::dev2(), Foam::fvc::div(), Foam::fvc::grad(), Foam::fvm::laplacian(), nu, rho, T, and U.

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◆ correct()

void correct

virtual

Solve the turbulence equations and correct eddy-Viscosity and related properties

Reimplemented from laminarModel< BasicTurbulenceModel >.

Definition at line 190 of file Maxwell.C.

References alpha, laminarModel< BasicTurbulenceModel >::correct(), Foam::fvm::ddt(), Foam::fvm::div(), fvOptions, Foam::fvc::grad(), IOobject::groupName(), Time::New(), tmp< T >::ref(), rho, solve(), Foam::fvm::Sp(), Foam::twoSymm(), and U.

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Member Data Documentation

◆ nuM_

dimensionedScalar nuM_

protected

Definition at line 85 of file Maxwell.H.

Referenced by Maxwell< BasicTurbulenceModel >::nu0().

◆ lambda_

dimensionedScalar lambda_

protected

Definition at line 86 of file Maxwell.H.

◆ sigma_

volSymmTensorField sigma_

protected

Definition at line 91 of file Maxwell.H.

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

src/TurbulenceModels/turbulenceModels/laminar/Maxwell/Maxwell.H
src/TurbulenceModels/turbulenceModels/laminar/Maxwell/Maxwell.C

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ alphaField

◆ rhoField

◆ transportModel

Constructor & Destructor Documentation

◆ Maxwell()

◆ ~Maxwell()

Member Function Documentation

◆ nu0()

◆ TypeName()

◆ read()

◆ R()

◆ devRhoReff() [1/2]

◆ devRhoReff() [2/2]

◆ divDevRhoReff() [1/2]

◆ divDevRhoReff() [2/2]

◆ correct()

Member Data Documentation

◆ nuM_

◆ lambda_

◆ sigma_