Particle secondary breakup model, based on the reference: More...

Inheritance diagram for PilchErdman< CloudType >:

Collaboration diagram for PilchErdman< CloudType >:

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

	PilchErdman (const dictionary &, CloudType &)
	Construct from dictionary. More...

	PilchErdman (const PilchErdman< CloudType > &bum)
	Construct copy. More...

virtual autoPtr< BreakupModel< CloudType > >	clone () const
	Construct and return a clone. More...

virtual	~PilchErdman ()
	Destructor. More...

virtual bool	update (const scalar dt, const vector &g, scalar &d, scalar &tc, scalar &ms, scalar &nParticle, scalar &KHindex, scalar &y, scalar &yDot, const scalar d0, const scalar rho, const scalar mu, const scalar sigma, const vector &U, const scalar rhoc, const scalar muc, const vector &Urel, const scalar Urmag, const scalar tMom, scalar &dChild, scalar &massChild)
	Update the parcel properties. More...

Public Member Functions inherited from BreakupModel< CloudType >
	TypeName ("breakupModel")
	Runtime type information. More...

	declareRunTimeSelectionTable (autoPtr, BreakupModel, dictionary,(const dictionary &dict, CloudType &owner),(dict, owner))
	Declare runtime constructor selection table. More...

	BreakupModel (CloudType &owner)
	Construct null from owner. More...

	BreakupModel (const dictionary &dict, CloudType &owner, const word &type, bool solveOscillationEq=false)
	Construct from dictionary. More...

	BreakupModel (const BreakupModel< CloudType > &bum)
	Construct copy. More...

virtual autoPtr< BreakupModel< CloudType > >	clone () const=0
	Construct and return a clone. More...

virtual	~BreakupModel ()
	Destructor. More...

const Switch &	solveOscillationEq () const

const scalar &	y0 () const

const scalar &	yDot0 () const

const scalar &	TABComega () const

const scalar &	TABCmu () const

const scalar &	TABtwoWeCrit () const

Private Attributes
scalar	B1_

scalar	B2_

Additional Inherited Members
Static Public Member Functions inherited from BreakupModel< CloudType >
static autoPtr< BreakupModel< CloudType > >	New (const dictionary &dict, CloudType &owner)
	Selector. More...

Protected Attributes inherited from BreakupModel< CloudType >
Switch	solveOscillationEq_

scalar	y0_

scalar	yDot0_

scalar	TABComega_

scalar	TABCmu_

scalar	TABtwoWeCrit_

Detailed Description

template<class CloudType>
class Foam::PilchErdman< CloudType >

Particle secondary breakup model, based on the reference:

Pilch, M. and Erdman, C.A.
"Use of breakup time data and velocity history data
 to predict the maximum size of stable fragments for acceleration
 induced breakup of a liquid drop."
Int. J. Multiphase Flows 13 (1987), 741-757

The droplet fragment velocity is described by the equation:

$V_d = V sqrt(epsilon)(B1 T + B2 T^2)$

Where: V_d : fragment velocity V : magnitude of the relative velocity epsilon : density ratio (rho_carrier/rho_droplet) T : characteristic break-up time B1, B2 : model input coefficients

The authors suggest that: compressible flow : B1 = 0.75*1.0; B2 = 3*0.116 incompressible flow : B1 = 0.75*0.5; B2 = 3*0.0758

Definition at line 71 of file PilchErdman.H.

Constructor & Destructor Documentation

◆ PilchErdman() [1/2]

PilchErdman	(	const dictionary &	dict,
		CloudType &	owner
	)

Construct from dictionary.

Definition at line 32 of file PilchErdman.C.

◆ PilchErdman() [2/2]

PilchErdman ( const PilchErdman< CloudType > & bum )

Construct copy.

Definition at line 50 of file PilchErdman.C.

◆ ~PilchErdman()

~PilchErdman

virtual

Destructor.

Definition at line 61 of file PilchErdman.C.

Member Function Documentation

◆ TypeName()

TypeName ( "PilchErdman< CloudType >" )

Runtime type information.

◆ clone()

virtual autoPtr<BreakupModel<CloudType> > clone ( ) const

inlinevirtual

Construct and return a clone.

Definition at line 98 of file PilchErdman.H.

◆ update()

bool update	(	const scalar	dt,
		const vector &	g,
		scalar &	d,
		scalar &	tc,
		scalar &	ms,
		scalar &	nParticle,
		scalar &	KHindex,
		scalar &	y,
		scalar &	yDot,
		const scalar	d0,
		const scalar	rho,
		const scalar	mu,
		const scalar	sigma,
		const vector &	U,
		const scalar	rhoc,
		const scalar	muc,
		const vector &	Urel,
		const scalar	Urmag,
		const scalar	tMom,
		scalar &	dChild,
		scalar &	massChild
	)

virtual

Update the parcel properties.

Implements BreakupModel< CloudType >.

Definition at line 69 of file PilchErdman.C.

References Foam::max(), Foam::constant::physicoChemical::mu, Foam::pow(), Foam::pow3(), rho, Foam::constant::physicoChemical::sigma, Foam::sqr(), and Foam::sqrt().

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Field Documentation

◆ B1_

scalar B1_

private

Definition at line 79 of file PilchErdman.H.

◆ B2_

scalar B2_