Ergun Class Reference

H, Enwald, E. Peirano, A-E Almstedt 'Eulerian Two-Phase Flow Theory Applied to Fluidization' Int. J. Multiphase Flow, Vol. 22, Suppl, pp. 21-66 (1996) Eq. 104, p. 42. More...

#include <Ergun.H>

Inheritance diagram for Ergun:

Collaboration diagram for Ergun:

Public Member Functions
	TypeName ("Ergun")
	Runtime type information.
	Ergun (const dictionary &interfaceDict, const phaseModel &phase1, const phaseModel &phase2)
	Construct from components.
virtual	~Ergun ()
	Destructor.
tmp< volScalarField >	K (const volScalarField &Ur) const
	The drag function K used in the momentum eq.
Public Member Functions inherited from dragModel
	TypeName ("dragModel")
	Runtime type information.
	declareRunTimeSelectionTable (autoPtr, dragModel, dictionary,(const dictionary &interfaceDict, const phaseModel &phase1, const phaseModel &phase2),(interfaceDict, phase1, phase2))
	dragModel (const dictionary &dict, const phaseModel &phase1, const phaseModel &phase2)
virtual	~dragModel ()=default
	Destructor.
const phaseModel &	phase1 () const
const phaseModel &	phase2 () const
const dimensionedScalar &	residualPhaseFraction () const
const dimensionedScalar &	residualSlip () const

Additional Inherited Members
Static Public Member Functions inherited from dragModel
static autoPtr< dragModel >	New (const dictionary &dict, const phaseModel &phase1, const phaseModel &phase2)
Protected Attributes inherited from dragModel
const dictionary &	interfaceDict_
const phaseModel &	phase1_
const phaseModel &	phase2_
dimensionedScalar	residualPhaseFraction_
dimensionedScalar	residualSlip_

Detailed Description

H, Enwald, E. Peirano, A-E Almstedt 'Eulerian Two-Phase Flow Theory Applied to Fluidization' Int. J. Multiphase Flow, Vol. 22, Suppl, pp. 21-66 (1996) Eq. 104, p. 42.

Source files

• Ergun.H
• Ergun.C

Definition at line 54 of file Ergun.H.

Constructor & Destructor Documentation

Ergun()

Ergun	(	const dictionary &	interfaceDict,
		const phaseModel &	phase1,
		const phaseModel &	phase2 )

Construct from components.

Definition at line 48 of file Ergun.C.

References dragModel::dragModel(), dragModel::phase1(), and dragModel::phase2().

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~Ergun()

~Ergun ( )

virtual

Destructor.

Definition at line 61 of file Ergun.C.

Member Function Documentation

TypeName()

TypeName

(

"Ergun"

)

Runtime type information.

References dragModel::phase1(), and dragModel::phase2().

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K()

Foam::tmp< Foam::volScalarField > K ( const volScalarField & Ur ) const

virtual

The drag function K used in the momentum eq.

ddt(alpha1*rho1*U1) + ... = ... alpha1*alpha2*K*(U1-U2) ddt(alpha2*rho2*U2) + ... = ... alpha1*alpha2*K*(U2-U1) ********************************** NB! ***************************** for numerical reasons alpha1 and alpha2 has been extracted from the dragFunction K, so you MUST divide K by alpha1*alpha2 when implementing the drag function ********************************** NB! *****************************

Implements dragModel.

Definition at line 67 of file Ergun.C.

References alpha2, Foam::max(), dragModel::phase1_, dragModel::phase2_, and Foam::sqr().

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

• src/phaseSystemModels/multiphaseEuler/multiphaseSystem/interfacialModels/dragModels/Ergun/Ergun.H
• src/phaseSystemModels/multiphaseEuler/multiphaseSystem/interfacialModels/dragModels/Ergun/Ergun.C