Heat transfer coefficient calculation based on Reynolds Analogy, which is used to relate turbulent momentum and heat transfer. More...

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Public Member Functions
	TypeName ("ReynoldsAnalogy")

	ReynoldsAnalogy (const dictionary &dict, const fvMesh &mesh, const word &TName)

	ReynoldsAnalogy (const ReynoldsAnalogy &)=delete

void	operator= (const ReynoldsAnalogy &)=delete

virtual	~ReynoldsAnalogy ()=default

virtual bool	read (const dictionary &dict)

Public Member Functions inherited from heatTransferCoeffModel
	TypeName ("heatTransferCoeffModel")

	declareRunTimeSelectionTable (autoPtr, heatTransferCoeffModel, dictionary,(const dictionary &dict, const fvMesh &mesh, const word &TName),(dict, mesh, TName))

	heatTransferCoeffModel (const dictionary &dict, const fvMesh &mesh, const word &TName)

	heatTransferCoeffModel (const heatTransferCoeffModel &)=delete

void	operator= (const heatTransferCoeffModel &)=delete

virtual	~heatTransferCoeffModel ()=default

const fvMesh &	mesh () const

const labelHashSet &	patchSet () const

const word &	TName () const

const word &	qrName () const

virtual bool	calc (volScalarField &result, const FieldField< Field, scalar > &q)

tmp< FieldField< Field, scalar > >	q () const

Protected Member Functions
virtual tmp< Field< scalar > >	rho (const label patchi) const

virtual tmp< Field< scalar > >	Cp (const label patchi) const

virtual tmp< volSymmTensorField >	devReff () const

tmp< FieldField< Field, scalar > >	Cf () const

virtual void	htc (volScalarField &htc, const FieldField< Field, scalar > &q)

Protected Attributes
word	UName_

vector	URef_

word	rhoName_

scalar	rhoRef_

word	CpName_

scalar	CpRef_

Protected Attributes inherited from heatTransferCoeffModel
const fvMesh &	mesh_

labelHashSet	patchSet_

const word	TName_

word	qrName_

Additional Inherited Members
Static Public Member Functions inherited from heatTransferCoeffModel
static autoPtr< heatTransferCoeffModel >	New (const dictionary &dict, const fvMesh &mesh, const word &TName)

Detailed Description

Heat transfer coefficient calculation based on Reynolds Analogy, which is used to relate turbulent momentum and heat transfer.

The heat transfer coefficient is derived from the skin friction coefficient:

$C_f = \frac{\tau_w}{0.5 \rho_\infty |U|^2}$

as:

$h = 0.5 \rho_\infty c_{p,\infty} |U_{\infty}| C_f$

where

	=	Convective heat transfer coefficient of the flow
$\rho_\infty$	=	Reference fluid density
$c_{p,\infty}$	=	Reference specific heat capacity at constant pressure
$U_{\infty}$	=	Reference velocity
	=	Skin friction coefficient
$\tau_w$	=	Wall shear stress

Usage

Minimal example by using system/controlDict.functions:

heatTransferCoeff1
{
    // Mandatory and other optional entries
    ...
    htcModel        ReynoldsAnalogy;

    // Conditional mandatory entries (runtime modifiable)
    UInf            (10 0 0);

    // Conditional optional entries (runtime modifiable)
    Cp              <CpName>;
    rho             <rhoName>;

    // mandatory if Cp == CpInf
    CpInf           1005;

    // mandatory if rho == rhoInf
    rhoInf          1;
}

where the entries mean:

Property	Description	Type	Reqd	Dflt
`type`	Model name: ReynoldsAnalogy	word	yes	-
`UInf`	Reference velocity	scalar	yes	-
`Cp`	Name of reference specific heat capacity	word	no	Cp
`CpInf`	Reference specific heat capacity value	scalar	cndtnl	-
`rho`	Name of reference fluid density	word	no	rho
`rhoInf`	Reference fluid density value	scalar	cndtnl	-

Note

to use a reference Cp, set Cp to CpInf
to use a reference rho, set rho to rhoInf

See also

Source files

Definition at line 182 of file ReynoldsAnalogy.H.

Constructor & Destructor Documentation

◆ ReynoldsAnalogy() [1/2]

ReynoldsAnalogy	(	const dictionary &	dict,
		const fvMesh &	mesh,
		const word &	TName
	)

Definition at line 190 of file ReynoldsAnalogy.C.

References dict, and Foam::read().

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◆ ReynoldsAnalogy() [2/2]

ReynoldsAnalogy ( const ReynoldsAnalogy & )

delete

◆ ~ReynoldsAnalogy()

virtual ~ReynoldsAnalogy ( )

virtualdefault

Member Function Documentation

◆ rho()

Foam::tmp< Foam::Field< Foam::scalar > > rho ( const label patchi ) const

protectedvirtual

Definition at line 47 of file ReynoldsAnalogy.C.

References fvMesh::boundary(), Foam::exit(), Foam::FatalError, FatalErrorInFunction, objectRegistry::foundObject(), objectRegistry::lookupObject(), heatTransferCoeffModel::mesh_, n, heatTransferCoeffModel::New(), ReynoldsAnalogy::rhoName_, and ReynoldsAnalogy::rhoRef_.

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◆ Cp()

Foam::tmp< Foam::Field< Foam::scalar > > Cp ( const label patchi ) const

protectedvirtual

Definition at line 69 of file ReynoldsAnalogy.C.

References basicThermo::dictName, Foam::exit(), Foam::FatalError, FatalErrorInFunction, n, and Foam::New().

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◆ devReff()

Foam::tmp< Foam::volSymmTensorField > devReff ( ) const

protectedvirtual

Definition at line 96 of file ReynoldsAnalogy.C.

References Foam::dev(), basicThermo::dictName, Foam::dimViscosity, Foam::exit(), Foam::FatalError, FatalErrorInFunction, Foam::fvc::grad(), nu, transportProperties(), turb, Foam::twoSymm(), and U.

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◆ Cf()

Foam::tmp< Foam::FieldField< Foam::Field, Foam::scalar > > Cf ( ) const

protected

Definition at line 154 of file ReynoldsAnalogy.C.

References forAll, Foam::mag(), Foam::magSqr(), Foam::New(), fvPatch::nf(), fvPatchField::patch(), R, U, and Foam::Zero.

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◆ htc()

void htc	(	volScalarField &	htc,
		const FieldField< Field, scalar > &	q
	)

protectedvirtual

Implements heatTransferCoeffModel.

Definition at line 239 of file ReynoldsAnalogy.C.

References GeometricField::boundaryFieldRef(), Cp, Foam::mag(), and rho.

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◆ TypeName()

TypeName ( "ReynoldsAnalogy" )

◆ operator=()

void operator= ( const ReynoldsAnalogy & )

delete

◆ read()

bool read ( const dictionary & dict )

virtual

Reimplemented from heatTransferCoeffModel.

Definition at line 211 of file ReynoldsAnalogy.C.

References dict, and heatTransferCoeffModel::read().

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Member Data Documentation

◆ UName_

word UName_

protected

Definition at line 191 of file ReynoldsAnalogy.H.

◆ URef_

vector URef_

protected

Definition at line 194 of file ReynoldsAnalogy.H.

◆ rhoName_

word rhoName_

protected

Definition at line 197 of file ReynoldsAnalogy.H.

Referenced by ReynoldsAnalogy::rho().

◆ rhoRef_

scalar rhoRef_

protected

Definition at line 200 of file ReynoldsAnalogy.H.

Referenced by ReynoldsAnalogy::rho().

◆ CpName_

word CpName_

protected

Definition at line 203 of file ReynoldsAnalogy.H.

◆ CpRef_

scalar CpRef_

protected

Definition at line 206 of file ReynoldsAnalogy.H.

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

src/functionObjects/field/heatTransferCoeff/heatTransferCoeffModels/ReynoldsAnalogy/ReynoldsAnalogy.H
src/functionObjects/field/heatTransferCoeff/heatTransferCoeffModels/ReynoldsAnalogy/ReynoldsAnalogy.C

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ReynoldsAnalogy() [1/2]

◆ ReynoldsAnalogy() [2/2]

◆ ~ReynoldsAnalogy()

Member Function Documentation

◆ rho()

◆ Cp()

◆ devReff()

◆ Cf()

◆ htc()

◆ TypeName()

◆ operator=()

◆ read()

Member Data Documentation

◆ UName_

◆ URef_

◆ rhoName_

◆ rhoRef_

◆ CpName_

◆ CpRef_