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

#include <HarrisCrighton.H>

Inheritance diagram for HarrisCrighton:

Collaboration diagram for HarrisCrighton:

Public Member Functions
	TypeName ("HarrisCrighton")
	Runtime type information.
	HarrisCrighton (const dictionary &dict)
	Constructors.
	HarrisCrighton (const HarrisCrighton &hc)
	Construct copy.
virtual autoPtr< ParticleStressModel >	clone () const
	Clone.
virtual	~HarrisCrighton ()
	Destructor.
tmp< Field< scalar > >	tau (const Field< scalar > &alpha, const Field< scalar > &rho, const Field< scalar > &uRms) const
	Member Functions.
tmp< Field< scalar > >	dTaudTheta (const Field< scalar > &alpha, const Field< scalar > &rho, const Field< scalar > &uRms) const
	Collision stress derivative w.r.t. the volume fraction.
Public Member Functions inherited from ParticleStressModel
	TypeName ("particleStressModel")
	Runtime type information.
	declareRunTimeSelectionTable (autoPtr, ParticleStressModel, dictionary,(const dictionary &dict),(dict))
	Declare runtime constructor selection table.
	ParticleStressModel (const dictionary &dict)
	Constructors.
	ParticleStressModel (const ParticleStressModel &sm)
	Construct a copy.
virtual	~ParticleStressModel ()
	Destructor.
scalar	alphaPacked () const
	Member Functions.
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.

Additional Inherited Members
Static Public Member Functions inherited from ParticleStressModel
static autoPtr< ParticleStressModel >	New (const dictionary &dict)
	Selector.
Protected Attributes inherited from ParticleStressModel
scalar	alphaPacked_
	Close pack volume fraction.

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 69 of file HarrisCrighton.H.

Constructor & Destructor Documentation

◆ HarrisCrighton() [1/2]

HarrisCrighton ( const dictionary & dict )

Constructors.

Construct from components

Definition at line 44 of file HarrisCrighton.C.

References dict, and ParticleStressModel::ParticleStressModel().

Referenced by clone(), HarrisCrighton(), and TypeName().

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◆ HarrisCrighton() [2/2]

HarrisCrighton ( const HarrisCrighton & hc )

Construct copy.

Definition at line 56 of file HarrisCrighton.C.

References HarrisCrighton(), and ParticleStressModel::ParticleStressModel().

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◆ ~HarrisCrighton()

~HarrisCrighton ( )

virtual

Destructor.

Definition at line 70 of file HarrisCrighton.C.

Member Function Documentation

◆ TypeName()

TypeName ( "HarrisCrighton" )

Runtime type information.

References dict, and HarrisCrighton().

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◆ clone()

virtual autoPtr< ParticleStressModel > clone ( ) const

inlinevirtual

Clone.

Implements ParticleStressModel.

Definition at line 124 of file HarrisCrighton.H.

References 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 94 of file HarrisCrighton.C.

References alpha, Foam::pow(), and rho.

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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 derivative w.r.t. the volume fraction.

Implements ParticleStressModel.

Definition at line 111 of file HarrisCrighton.C.

References alpha, Foam::pow(), and rho.

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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

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ HarrisCrighton() [1/2]

◆ HarrisCrighton() [2/2]

◆ ~HarrisCrighton()

Member Function Documentation

◆ TypeName()

◆ clone()

◆ tau()

◆ dTaudTheta()