Inter-particle stress model of Harris and Crighton. More...

Inheritance diagram for HarrisCrighton:

Collaboration diagram for HarrisCrighton:

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

	HarrisCrighton (const dictionary &dict)
	Constructors. More...

	HarrisCrighton (const HarrisCrighton &hc)
	Construct copy. More...

virtual autoPtr< ParticleStressModel >	clone () const
	Clone. More...

virtual	~HarrisCrighton ()
	Destructor. More...

tmp< Field< scalar > >	tau (const Field< scalar > &alpha, const Field< scalar > &rho, const Field< scalar > &uRms) const
	Member Functions. More...

tmp< Field< scalar > >	dTaudTheta (const Field< scalar > &alpha, const Field< scalar > &rho, const Field< scalar > &uRms) const
	Collision stress derivaive w.r.t. the volume fraction. More...

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

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

	ParticleStressModel (const dictionary &dict)
	Constructors. More...

	ParticleStressModel (const ParticleStressModel &sm)
	Construct a copy. More...

virtual	~ParticleStressModel ()
	Destructor. More...

scalar	alphaPacked () const
	Member Functions. More...

tmp< FieldField< Field, scalar > >	tau (const FieldField< Field, scalar > &alpha, const FieldField< Field, scalar > &rho, const FieldField< Field, scalar > &uRms) const
	Collision stress using FieldFields. More...

Private Member Functions
tmp< Field< scalar > >	denominator (const Field< scalar > &alpha) const
	Return the limited denominator of the radial distribution function. More...

Private Attributes
scalar	pSolid_
	Solid pressure coefficient. More...

scalar	beta_
	Exponent of the volume fraction. More...

scalar	eps_
	Smallest allowable difference from the packed volume fraction. More...

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

Protected Attributes inherited from ParticleStressModel
scalar	alphaPacked_
	Close pack volume fraction. More...

Detailed Description

Inter-particle stress model of Harris and Crighton.

The stress value takes the following form:

$\frac{P_s \alpha^\beta}{ \mathrm{max} \left( \alpha_{pack} - \alpha , \epsilon ( 1 - \alpha ) \right) }$

Here, $\alpha$ is the volume fraction of the dispersed phase, and the other values are modelling constants. A small value $\epsilon$ is used to limit the denominator to ensure numerical stability.

Reference:

    "Solitons, solitary waves, and voidage disturbances in gas-fluidized
    beds"
    S Harris and D Crighton,
    Journal of Fluid Mechanics
    Volume 266, Pages 243-276, 1994

Source files

Definition at line 68 of file HarrisCrighton.H.

Constructor & Destructor Documentation

◆ HarrisCrighton() [1/2]

HarrisCrighton ( const dictionary & dict )

Constructors.

Construct from components

Definition at line 50 of file HarrisCrighton.C.

Referenced by HarrisCrighton::clone().

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◆ HarrisCrighton() [2/2]

HarrisCrighton ( const HarrisCrighton & hc )

Construct copy.

Definition at line 62 of file HarrisCrighton.C.

◆ ~HarrisCrighton()

~HarrisCrighton ( )

virtual

Destructor.

Definition at line 75 of file HarrisCrighton.C.

Member Function Documentation

◆ denominator()

Foam::tmp< Foam::Field< Foam::scalar > > denominator ( const Field< scalar > & alpha ) const

private

Return the limited denominator of the radial distribution function.

Definition at line 83 of file HarrisCrighton.C.

References Foam::constant::atomic::alpha, and Foam::max().

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◆ TypeName()

TypeName ( "HarrisCrighton" )

Runtime type information.

◆ clone()

virtual autoPtr<ParticleStressModel> clone ( ) const

inlinevirtual

Clone.

Implements ParticleStressModel.

Definition at line 105 of file HarrisCrighton.H.

References HarrisCrighton::HarrisCrighton().

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◆ tau()

Foam::tmp< Foam::Field< Foam::scalar > > tau	(	const Field< scalar > &	alpha,
		const Field< scalar > &	rho,
		const Field< scalar > &	uRms
	)		const

virtual

Member Functions.

Collision stress

Implements ParticleStressModel.

Definition at line 100 of file HarrisCrighton.C.

References Foam::constant::atomic::alpha, and Foam::pow().

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◆ dTaudTheta()

Foam::tmp< Foam::Field< Foam::scalar > > dTaudTheta	(	const Field< scalar > &	alpha,
		const Field< scalar > &	rho,
		const Field< scalar > &	uRms
	)		const

virtual

Collision stress derivaive w.r.t. the volume fraction.

Implements ParticleStressModel.

Definition at line 117 of file HarrisCrighton.C.

References Foam::constant::atomic::alpha, and Foam::pow().

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Field Documentation

◆ pSolid_

scalar pSolid_

private

Solid pressure coefficient.

Definition at line 75 of file HarrisCrighton.H.

◆ beta_

scalar beta_

private

Exponent of the volume fraction.

Definition at line 78 of file HarrisCrighton.H.

◆ eps_

scalar eps_

private

Smallest allowable difference from the packed volume fraction.

Definition at line 81 of file HarrisCrighton.H.

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

src/lagrangian/intermediate/submodels/MPPIC/ParticleStressModels/HarrisCrighton/HarrisCrighton.H
src/lagrangian/intermediate/submodels/MPPIC/ParticleStressModels/HarrisCrighton/HarrisCrighton.C

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ HarrisCrighton() [1/2]

◆ HarrisCrighton() [2/2]

◆ ~HarrisCrighton()

Member Function Documentation

◆ denominator()

◆ TypeName()

◆ clone()

◆ tau()

◆ dTaudTheta()

Field Documentation

◆ pSolid_

◆ beta_

◆ eps_