Bubble breakup model of Liao et al. (2015). The terminal velocities and drag coefficients are computed by an iterative procedure based on the drag model of Ishii and Zuber (1979) at the beginning of the simulation, assuming single bubbles rising in quiescent liquid. More...

Inheritance diagram for Liao:

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Collaboration diagram for Liao:

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Public Member Functions
	TypeName ("Liao")
	Runtime type information. More...

	Liao (const populationBalanceModel &popBal, const dictionary &dict)

virtual	~Liao ()
	Destructor. More...

virtual void	precompute ()
	Pre-compute diameter independent expressions. More...

virtual tmp< volScalarField::Internal >	rate (const label i, const label j) const
	Return the breakup rate between two groups. More...

Public Member Functions inherited from binary
virtual	~binary ()
	Destructor. More...

	breakupModel (const populationBalanceModel &popBal, const dictionary &dict)
	Inherit constructors. More...

Public Member Functions inherited from breakupModel
	TypeName ("breakupModel")
	Runtime type information. More...

	declareRunTimeSelectionTable (autoPtr, breakupModel, dictionary,(const populationBalanceModel &popBal, const dictionary &dict),(popBal, dict))

	breakupModel (const populationBalanceModel &popBal, const dictionary &dict)

virtual	~breakupModel ()
	Destructor. More...

const populationBalanceModel &	popBal () const
	Return reference to the populationBalanceModel. More...

Public Member Functions inherited from LiaoBase
	LiaoBase (const populationBalanceModel &popBal, const dictionary &dict)

virtual	~LiaoBase ()
	Destructor. More...

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

Protected Attributes inherited from breakupModel
const populationBalanceModel &	popBal_
	Reference to the populationBalanceModel. More...

Protected Attributes inherited from LiaoBase
const populationBalanceModel &	popBal_
	Reference to the populationBalanceModel. More...

volScalarField::Internal	kolmogorovLengthScale_
	Kolmogorov length scale. More...

volScalarField::Internal	shearStrainRate_
	Shear strain rate. More...

volScalarField::Internal	eddyStrainRate_
	Eddy strain rate. More...

PtrList< dimensionedScalar >	uTerminal_
	Terminal velocities. More...

PtrList< dimensionedScalar >	Cd_
	Drag coefficients. More...

Detailed Description

Bubble breakup model of Liao et al. (2015). The terminal velocities and drag coefficients are computed by an iterative procedure based on the drag model of Ishii and Zuber (1979) at the beginning of the simulation, assuming single bubbles rising in quiescent liquid.

References:

    Liao, Y.; Rzehak, R.; Lucas, D.; Krepper, E. (2015).
    Baseline closure models for dispersed bubbly flow: Bubble coalescence
    and breakup.
    Chemical Engineering Science, 122, 336-349.

    Ishii, M., & Zuber, N. (1979).
    Drag coefficient and relative velocity in bubbly, droplet or particulate
    flows.
    AIChE Journal, 25(5), 843-855.

Usage

Property	Description	Required	Default value
`BTurb`	coefficient BTurb	no	1.0
`BShear`	coefficient Bbuoy	no	1.0
`BEddy`	coefficient BEddy	no	1.0
`BFric`	coefficient Bwake	no	1.0
`turbulence`	Switch for turbulence	yes	none
`laminarShear`	Switch for laminar shear	yes	none
`turbulentShear`	Switch for eddies	yes	none
`interfacialFriction`	Switch for friction	yes	none

Source files

Definition at line 127 of file Liao.H.

Constructor & Destructor Documentation

◆ Liao()

Liao	(	const populationBalanceModel &	popBal,
		const dictionary &	dict
	)

Definition at line 47 of file Liao.C.

◆ ~Liao()

virtual ~Liao ( )

inlinevirtual

Destructor.

Definition at line 178 of file Liao.H.

Member Function Documentation

◆ TypeName()

TypeName ( "Liao" )

Runtime type information.

◆ precompute()

void precompute ( )

virtual

Pre-compute diameter independent expressions.

Reimplemented from LiaoBase.

Definition at line 68 of file Liao.C.

References LiaoBase::precompute().

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◆ rate()

Foam::tmp< Foam::volScalarField::Internal > rate	(	const label	i,
		const label	j
	)		const

virtual

Return the breakup rate between two groups.

Implements binary.

Definition at line 75 of file Liao.C.

References Foam::cbrt(), Foam::dimTime, Foam::dimVolume, Foam::inv(), Foam::mag(), Foam::max(), Foam::min(), DimensionedField< Type, GeoMesh, PrimitiveField >::New(), Foam::pos(), Foam::pos0(), Foam::pow3(), tmp< T >::ref(), Foam::constant::physicoChemical::sigma, Foam::sqr(), and Foam::sqrt().