Cross-Power law generalized Newtonian viscosity model. More...

Inheritance diagram for CrossPowerLaw:

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Public Member Functions
	TypeName ("CrossPowerLaw")

	CrossPowerLaw (const dictionary &viscosityProperties)

virtual	~CrossPowerLaw ()=default

virtual bool	read (const dictionary &viscosityProperties)

virtual tmp< volScalarField >	nu (const volScalarField &nu0, const volScalarField &strainRate) const

Public Member Functions inherited from generalizedNewtonianViscosityModel
	TypeName ("generalizedNewtonianViscosityModel")

	declareRunTimeSelectionTable (autoPtr, generalizedNewtonianViscosityModel, dictionary,(const dictionary &viscosityProperties),(viscosityProperties))

	generalizedNewtonianViscosityModel (const generalizedNewtonianViscosityModel &)=delete

void	operator= (const generalizedNewtonianViscosityModel &)=delete

	generalizedNewtonianViscosityModel (const dictionary &viscosityProperties)

virtual	~generalizedNewtonianViscosityModel ()=default

const dictionary &	viscosityProperties () const

Additional Inherited Members
Static Public Member Functions inherited from generalizedNewtonianViscosityModel
static autoPtr< generalizedNewtonianViscosityModel >	New (const dictionary &dict)

Protected Attributes inherited from generalizedNewtonianViscosityModel
dictionary	viscosityProperties_

Detailed Description

Cross-Power law generalized Newtonian viscosity model.

The strain rate coefficient can be specified either as the constant m or the critical stress level at the transition to shear thinning tauStar if tauStar is provided:

Kinematic viscosity [m^2/s]

$\nu = \nu_\infty + \frac{(\nu_0 - \nu_\infty)}{1 + (m\gamma)^n}$

or

$\nu = \nu_\infty + \frac{(\nu_0 - \nu_\infty)} {1 + \left(\frac{\nu_0\gamma}{\tau^*}\right)^n}$

Example specification:

     viscosityModel CrossPowerLaw;

     nuInf      10;
     m          0.4;
     n          3;

Source files

Definition at line 79 of file CrossPowerLaw.H.

Constructor & Destructor Documentation

◆ CrossPowerLaw()

CrossPowerLaw ( const dictionary & viscosityProperties )

explicit

Definition at line 51 of file CrossPowerLaw.C.

◆ ~CrossPowerLaw()

virtual ~CrossPowerLaw ( )

virtualdefault

Member Function Documentation

◆ TypeName()

TypeName ( "CrossPowerLaw" )

◆ read()

bool read ( const dictionary & viscosityProperties )

virtual

Implements generalizedNewtonianViscosityModel.

Definition at line 71 of file CrossPowerLaw.C.

References dictionary::optionalSubDict(), Foam::blockMeshTools::read(), and dictionary::readEntry().

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◆ nu()

Foam::tmp< Foam::volScalarField > nu	(	const volScalarField &	nu0,
		const volScalarField &	strainRate
	)		const

virtual

Implements generalizedNewtonianViscosityModel.

Definition at line 91 of file CrossPowerLaw.C.

References Foam::pow().